ICP 2014 - Day by day Scientific programme


17:30 - 18:00 Plenary Session (Sala de las Américas)
Welcome, Henry Lim (President IUPB) - Silvia Braslavsky (Chairwoman of Organizing Committee 16th ICP 2014)
18:00 - 18:30 Plenary Session (Sala de las Américas)
Special Lecture: Phil Hanawalt (Stanford, USA) - "The Photobiological origins of DNA repair pathways and repair deficient diseases"
Chair: Rex Tyrrell
18:30 - 19:15 Plenary Session (Sala de las Américas)
Finsen Medal Award Lecture: Masamitsu Wada (Kyushu University, Japan) - Chloroplast movement, what is this?
Chair: Roberto Bassi
19:15 - 21:30 Welcome Reception (Foyer Pabellón Argentina) 


8:00 - 8:30 Plenary Session (Sala de las Américas)
Opening Ceremony
8:30 - 10:40 Parallel Sessions: Symposia
Regulation in Photosynthesis (Sala de las Américas)
Chairs: Diana Kirilovsky and Roberto Bassi
  • Diana Kirilovsky (CEA-Institute of Biology and Technology, Saclay, France): "The cyanobacterial photoactive orange carotenoid protein is an excellent singlet oxygen quencher in addition to be an energy quencher" (25 min)
  • Roberto Bassi (University of Verona, Italy): "Photoprotection of the chloroplast is provided by both photoreceptor-dependent and –independent mechanisms" (25 min)
  • Eva-Mari Aro (University of Turku, Finland): "Interplay between photodamage of Photosystem II and Photosystem I" (25 min)
  • Toshiharu Shikanai (Kyoto University, Japan): "Regulation of photosynthesis by PSI cyclic electron transport" (25 min)
  • Alberta Pinnola (University of Verona, Italy): "The triggers of excess energy dissipation, PSBS and LHCSR proteins, are localized in distinct thylakoid protein domains in Physcomitrella patens" (15 min)
  • Alonso Acuña (Free University, Amsterdam, The Netherlands): "Modelling PAM signals of non-photochemical quenching in cyanobacteria" (15 min)
PDT of microorganisms (Salón de actos, Pabellón Argentina)
Chair: Edgardo Durantini
  • Edgardo Durantini (National University Rio Cuarto, Argentina): "Photodynamic inactivation of microorganisms mediated by fullerene C60 derivatives" (20 min)
  • Zivile Luksiene (Vilnius University, Lithuania): "Towards prevention of infectious foodborne diseases: photosensitization for decontamination of fruits and vegetables" (20 min)
  • Dai Thianhong (presented by Michael A. Hambling) (Harvard Medical School, USA): " Antimicrobial blue light against infecting microbes (20 min)
  • Threes Smijs (Erasmus Medical Centre, The Netherlands): "Photodynamic fungicidal efficacy of novel, multifunctional photosensitizers within single treatment in an ex vivo onychomycosis model" (15 min)
  • Debora Aureliano (CLA/IPEN/CNEN - University of São Paulo, Brazil): "Antiparasitic activity of the photodynamic therapy in Leishmania amazonensis promastigotes" (15 min)
  • Jazmín Silvero (National University of Córdoba, Argentina): "Oxidatives stress on Staphylococcus aureus ATCC 29213 and extended-spectrum beta-lactamases-producing (ESBL) Escherichia coli by AuNPs irradiated with green LED" (15 min)
Non-visual Opsins (Salón Rojo)
Chair: Ana Maria Castrucci
  • Maristela Poletini (Federal University of Minas Gerais, Brazil): "Melanospsins – the circadian photopigment in non-mammalian vertebrate cells" (25 min)
  • Pablo Barrionuevo (University of Illinois at Chicago, USA): "Afferent Circuitries of Intrinsically Photosensitive Ganglion Cells Inferred from Human Pupillary Responses" (25 min)
  • María Nathalia Moraes (University of São Paulo, Brazil): "Melanopsin signalling pathways triggered by light in Xenopus Laevis melanophores" (15 min)
  • Nicolás M. Díaz (National University of Córdoba, Argentina): "Non-visual photochemistry in the non-mammalian inner retina" (15 min)
Spectroscopic Methods for Identification of (Chromo) Proteins (Salón Azul – Escuela de Graduados Facultad de Medicina)
Chairs: M. Andrea Mroginski and Hideki Kandori
  • Hideki Kandori (Nagoya Institute of Technology, Japan): "Light-induced difference FTIR spectroscopy of rhodopsins and flavoproteins" (25 min)
  • Marcus Elstner (Karlsruhe Institute for Technology, Germany): "Classical force field and QM/MM simulations of retinal proteins" (25 min)
  • Yasuhisa Mizutani (Osaka University, Japan): "Time-resolved resonance Raman spectroscopy on retinal proteins" (25 min)
  • Andrea Mroginski (Technical University, Berlin, Germany): "Elucidation of structural properties of the chromophore site in phytochromes: a spectroscopical and theoretical approach" (25 min)
  • Chavdar Slavov (Goethe University, Frankfurt, Germany): "Ultrafast photoconversion kinetics of a bilin-binding cyanobacteriochrome GAF domain from Synechocystis PCC6803" (15 min)
  • Oskar Berntsson (University of Gothenburg, Sweden): "Signal Amplification and transduction in phytochrome photosensors" (15 min)
Channel Rhodopsins and Optogenetics (Sala 2 – Escuela de Graduados Facultad de Medicina)
Chair: Peter Hegemann
  • Peter Hegemann (Humboldt University, Berlin): "New insights into algal rhodopsins" (25 min)
  • Ryuichiro Ishitani (The University of Tokyo, Japan): "Crystal structure of the channelrhodopsin light-gated cation channel" (25 min)
  • Ofer Yizhar (Weizmann Institution, Israel): "Engineered channelrhodopsins in neural circuits" (25 min)
  • Silvana Konermann (MIT, USA): "Optical control of endogenous mammalian transcription and epigenetic states" (25 min)
  • Shota Ito (Nagoya Institute of Technology, Japan) "Role of water molecules in channel rhodopsins" (15 min)
  • Tadeusz Andruniów (Wroclaw University of Technology, Japan): " Photoisomerization reaction in rhodopsin retinal analogues" (15 min)
Photoprotection (Sala 3 – Escuela de Graduados Facultad de Medicina), Sponsored by L’Oreal
Chairs: Henry Lim and Françoise Bernerd
  • Gary Halliday (University of Sydney, Australia): "Photoimmunology: wavelengths and mechanisms" (20 min)
  • Françoise Bernerd (L’Oreal Research and Innovation, France): "New insights into the biological effects of longwaves UVA1 using human reconstructed skin model" (15 min)
  • Henry W. Lim (Henry Ford Hospital, Detroit, USA): Photoprotection, skin types and vitamin D" (15 min)
  • Lesley Rhodes (University of Manchester, UK): "New developments in systemic photoprotection" (20 min)
  • Sergio Schalka (University of Santo Amato, São Paulo, Brazil) : "Photoprotection in Brazil" (20 min)
  • Elisabeth Thieden (Copenhagen University Hospital, Denmark): "Adults stick to their sun exposure habits – Teenagers lower their risk when adults" (10 min)
  • Marta C. Valbuena Mesa (National Institute of Dermatology, Colombia): "Photopatch test reactions to Sunscreens" (10 min)
  • Tassiele A. Heinrich (Federal University of Parana, Brazil) : "N-acetylcysteine antioxidant effects on B16-F10 cells under melanogenesis stimulation" (10 min)
  • 10 min Discussion of poster presentations
10:40 - 11:30 Coffee-break
11:30 - 12:15 Plenary Session (Sala de las Américas)
Plenary Lecture: Karl Deisseroth (Stanford, USA) - "Optogenetics"
Chair: Peter Hegemann
12:15-12:45 Parallel Sessions
Keynote Lecture (Sala de las Américas)
Frank Vollmer (Max Planck Institute for the Science of Light, Erlangen, Germany) - "Photobiology with single molecules using optical microresonators"
Chair: Pedro Aramendía
Keynote Lecture (Salón de actos, Pabellón Argentina)
Carlos Ballaré (IFEVA - CONICET, University of Buenos Aires, Argentina) - "Light regulation of plant immunity"
Chair: Rubén Bottini
Keynote Lecture (Salón Rojo)
Mario Guido (National University Córdoba, Argentina) - "Non-visual photoreceptors in the inner retina of chicken"
Chair: Yoshitaka Fukada
12:45 - 15:00 Poster Session / Commercial Exhibition / Lunch (Foyer Pabellón Argentina)
15:00 - 17:10 Parallel Sessions: Symposia
Antennas and their Diversity (Sala de las Américas)
Chair: Richard Cogdell
  • Darius Niedzwiedzki (Washington University in St. Louis, USA): "Elucidation of the Molecular Mechanism of photoactivation and structural location of the Cyanobacterial Orange Carotenoid Protein" (25 min)
  • Richard Cogdell (University of Glasgow, Scotland, UK): "Unravelling the structure/function relations of the puc gene family in Rhodopsuedomonas palustris that encode the LH2 apoproteins: a genetic dissection strategy" (25 min)
  • Jürgen Köhler (University of Bayreuth, Germany): "Antenna complexes in the light of single molecule spectroscopy" (25 min)
  • Marta Bunster (University of Concepción, Chile): "What we know about the phycobilisome from Gracilaria Chilensis" (25 min)
  • Lisa Maria Wohlrab (University of Bayreuth, Germany): "Polarization-resolved fluorescence-excitation spectroscopy on individual chlorosomes of Chlorobaculum tepidum" (15 min)
  • Igor Stadnichuk (A.N. Bach Institute of Biochemistry RAS, Russia): "Photoprotection of phycobilisomes against highly excess light and the quantum-chemical mechanism of the effect" (15 min)
Cosmetic Sunscreens and Medical Devices: Photoprotection (Salón de actos, Pabellón Argentina)
Chairs: Bernd Herzog and Federico Svarc
  • Federico Svarc (fabriQUIMICA S.R.L., Argentina): "A brief illustrated history on sunscreens and sun protection" (25 min)
  • Silvia H. Pérez Damonte (Buenos Aires, Argentina): "In vivo techniques for sunscreen products" (25 min)
  • Bernd Herzog (BASF, Germany): "Photostability of UV absorbers and simulation of sunscreen performance" (25 min)
  • Santi Nonell (University Ramon Llull, IQS, Barcelona, Spain): "Progressive sunscreens" (25 min)
  • Adersh Asok (Indian Institute of Technology, Bombay, India): "Defect-rich ZnO quantum dots as a potential multifunctional sunscreen and cosmetic active ingredient" (15 min)
Photomovements and their Photoreceptors (Salón Rojo)
Chair: Silvia Braslavsky
In Memoriam: Masakatsu Watanabe (deceased March 13th, 2014)
  • Kenji Iwasaki (Osaka University, Japan): "Structural insights into Euglena’s photosending organelle PFB by modern EM imaging techniques" (25 min)
  • Ken-ichi Wakabayashi (Tokyo Institute of Technology, Japan): "Sign-control of Chlamydomonas phototaxis by redox poise" (25 min)
  • Ranieri Bizarri (CNR Nanosciences Institute, Pisa, Italy): "Functional high-resolution imaging of photoreceptors and cell membrane order" (25 min)
  • Peter Hegemann (Humboldt University, Berlin): "The phototaxis photoreceptor of Euglena gracilis" (25 min)
Aquatic Photobiology and Biodiversity (Salón Azul – Escuela de Graduados Facultad de Medicina)
Chairs: Patricia Pérez and María Vernet
  • María Vernet (University of California San Diego, USA): "Photoinhibition of cellular pigments by ultraviolet radiatiom in Antarctic sea ice communities" (20 min)
  • Marcelo P. Hernando (National Atomic Energy Commission, Argentina): "Physiological responses and toxin production of M. aureaginosa in short term exposure to solar UV radiation" (15 min)
  • Joseph Nana Annan (University of Education, Winneba, Ghana): "Physiological, spectroscopic and biochemical analysis of solar visible and UV radiation effects on the cyanobacterium Microcoleus chthonoplastes" (15 min)
  • Marina Gerea (National University of Comahue, Argentina): "Field evidence of coupling between underwater light spectra and nano and microphytoplankton community structure in two shallow lakes" (15 min)
  • A. Patricia Pérez (National University of Comahue, Argentina): "Photobiology strategies in freshwater zooplankton, Boeckella genus as a study case" (15 min)
  • Cristina Sobrino (University of Vigo, Spain): "Interactive effects of elevated CO2 and ultraviolet radiation on planktonic communities" (25 min)
  • Susana Agusti (University of Western Australia and CSIC-UIB, Spain): "Complex effects of solar radiation on the metabolic balance of the ocean" (25 min)
Photoreceptors and Responses to Light in Bacteria": b (Sala 2 – Escuela de Graduados Facultad de Medicina)
Chairs: Wolfgang Gärtner and Gastón Paris
  • Wolfgang Gärtner (Max Planck Institute for Chemical Energy Conversion, Mülheim/Ruhr, Germany): "The Dual Function of Microbial Photoreceptors –Regulation of Microbial Lifestyle and Toolbox for Biotechnological Applications" (20 min)
  • Gastón Paris (Leloir Institute Foundation, Argentina): "Biological function of LOV histidine kinase in Rhizobiales" (20 min)
  • Romina Sellaro (IFEVA, University of Buenos Aires, Argentina): "LOV-domain photoreceptor attenuates virulence of Pseudomonas syringae in light-exposed leaves" (25 min)
  • Clark Lagarias (University of California Davis, USA): "Color vision in oxygenic photosynthetic species" (25 min)
  • Delmar Larsen (University of California Davis, USA): "Resolving novel ultrafast and infraslow light-induced dynamics of phytochrome & cyanobacteriochrome photosensory proteins" (25 min)
  • Marianne Jaubert (University Pierre and Marie Curie, France): "A phytochrome red/far red light photoreceptor in marine diatoms" (15 min)
Photoprotection (Sala 3 – Escuela de Graduados Facultad de Medicina), Sponsored by L’Oreal
Chairs: Vivienne Reeve and Daniel González Maglio
  • Daniel González Maglio (College of Pharmacy and Biochemistry, University of Buenos Aires, Argentina): "Experimental approach to the effects of sun exposure on the immune system, comparing daily casual exposures versus a harmful one" (25 min)
  • Peter Wolf (Medical University of Graz, Austria): "Mechanisms of photo(chemo) therapy in photo-responsive inflammatory and neoplastic disorders" (25 min)
  • Prue Hart (University of Western Australia, Australia): "Mechanisms supporting UVB irradiation of patients with early multiple sclerosis" (25 min)
  • Graeme Walker (Queensland Institute of Medical Research, Brisbane, Australia): "UVR carcinogenesis in melanoma" (25 min)
  • Katie Dixon (The University of Sydney, Australia): "Novel molecular targets for vitamin D in melanoma prevention, growth and metastasis" (25 min)
17:10 - 17:45 Coffee-break
17:45 - 18:30 Plenary Session (Sala de las Américas)
Plenary Lecture: Thomas Schwartz (University Kiel, Germany) - "Photoinmunology"
Chair: Chair: Gary Halliday
18:30 - 20:00 Plenary Session (Salón de actos, Pabellón Argentina)
Research in Germany


8:30 - 10:40 Parallel Sessions: Symposia
Light Reactions in Photosynthesis (Sala de las Américas)
Chairs: Alfred R. Holzwarth and Victor S. Batista
  • Alfred Holzwarth (Max Planck Institute for Chemical Energy Conversion, Mülheim/Ruhr, Germany): “Light-Harvesting, antenna quenching, and ultrafast charge separation in reaction centers. A unified view” (25 min)
  • Victor S. Batista (Yale University, USA): “Studies of PCET in natural and artificial photosynthesis” (25 min)
  • Holger Dau (Free University, Berlin, Germany): “Spatiotemporal orchestration of photosynthetic water oxidation by coupling of electron and proton transfer at various time and length scales” (25 min)
  • Roberta Croce (Free University, Amsterdam, The Netherlands): “Light harvesting in the green alga Chlamydomonas reinhardtii – between adaptation and acclimation” (25 min)
  • Petra Edlund (Gothenburg University, Sweden): “Coherent electronic dynamics in RC from photosynthetic bacterium Rhodobacter sphaeroides” (15 min)
  • Pablo Nahuel Domínguez (Ludwig Maximilian University, Munich, Germany): “Electron transfer in the primary reaction centres – Overexposure changes reaction dynamics” (15 min)
Photo(chemo)therapy and Photopheresis (Salón de actos, Pabellón Argentina)
Chairs: Herbert Hönigsmann and Giovanni Leone
  • Peter Wolf (Medical University of Graz, Austria): “311 nm-UVB phototherapy today” (25 min)
  • Ljubomir B. Novakoviç (St. John’s Institute of Dermatology, London, UK): “PUVA versus narrowband UVB phototherapy in vitiligo and psoriasis” (15 min)
  • Piergiacomo Calzavara Pinton (University of Brescia, Italy): “UVA1: Optimal Use” (22 min)
  • Giovanni Leone (San Gallicano Dermatologic Institute, Rome, Italy): “Phototherapy with Lasers” (22 min)
  • Robert Knobler (Medical University of Viena, Austria): “Extracorporeal Photopheresis 2014” (22 min)
  • Rolf Marcus Szeimies (Academic Teaching Hospital, Ruhr-University Bochum, Germany): “Photodynamic therapy – today” (22 min)
Microbial Rhodopsins: Structure and Function (Salón Rojo)
Chair: John Spudich
  • John Spudich (University of Texas, Houston, USA): “Microbial rhodopsins: diverse functions from a single protein scaffold” (25 min)
  • Oleg Sineshchekov (University of Texas, Houston, USA): “The two distinct functions of Channelrhodopsins in algae” (25 min)
  • Hartman Luecke (University of California Irvine, USA): “Cross-protomer interaction with the photoactive site in oligomeric proteorhodopsin complexes” (25 min)
  • Leonid Brown (University of Guelph, Canada): “Biospectroscopic insights into the unique cyanobacterial photoreceptor” (25 min)
  • Meike Luck (Humboldt University, Berlin): “Histidine kinase rhodopsins in microalgae” (15 min)
  • Yoshikata Kato (Nagoya Institute of Technology, Japan): “Spectroscopic study of light-driven sodium ion pump”(15 min)
Fluorescent Probes in Biological Systems (Sala 2 – Escuela de Graduados Facultad de Medicina)
Chairs: Thomas Jovin and Gonzalo Cosa
  • Gonzalo Cosa (Mc Gill University, Montreal, Canada): “Fluorogenic antioxidants, visualizing peroxyl radicals from ensemble to single molecule” (25 min)
  • Thomas Jovin (Max Planck Institute for Biophysical Chemistry, Göttingen, Germany): “Photoswitchable quantum dot probes” (25 min)
  • Johan Hofkens (Catholic University Leuven, Belgium): “Towards the rational design of fluorescent proteins tailored for super-resolution imaging” (25 min)
  • Fernando Stefani (CIBION-CONICET and University of Buenos Aires, Argentina): “Controlled reduction of photobleaching in DNA origami-gold nanoparticle hybrids” (25 min)
  • Thomas Gensch (Cellular Biophysics, Forschungszentrum Jülich, Germany): ”Non-invasive investigation of ion concentrations in living tissue and cells” (15 min)
  • Cristina Flors (Madrid Institute for Advanced Studies in Nanoscience, Spain): “Improving Fluorescence labelling in superresolution microscopy with correlative imaging” (15 min)
Natural Sunscreen Compounds (Salón Azul – Escuela de Graduados Facultad de Medicina)
Chairs: M. Sandra Churio and Diego Sampedro
  • Sandra Churio (National University Mar del Plata, Argentina): “Molecular basis of the UV-photoprotective potential of mycosporine-like amino acids (MAAS) and related compounds” (25 min)
  • Diego Sampedro (University of La Rioja, Logroño, Spain): “Learning from Nature: unveiling the mechanisms of photoprotection” (25 min)
  • Ferrán García-Pichel (Arizona State University, USA): “A record of the planetary history of environmental UV exposure in the biosynthetic genes of microbial suncreens” (25 min)
  • Nelso P. Navarro (University of Magallanes, Punta Arenas, Chile): “Sunscreens in red algae from Patagonia” (25 min)
  • Carolina Gambetta (National University Rio Cuarto, Argentina): “Photochemical properties of evernyl, a naturally occurring compound used in sunscreen and perfume formulations” (15 min)
  • Miguel Puertas-Mejía (University of Antioquía, Colombia): “Natural UV absorbers of Cavendishia SP extracts from Antioquía, Colombia” (15 min)
Photosensitivity and DNA repair defects (Sala 3 – Escuela de Graduados Facultad de Medicina)
Chairs: Graciela Spivak and Carlos F. Menck
  • Graciela Spivak (Stanford University, USA): “Cancer-resistant cockayne and UV-sensitive syndromes” (25 min)
  • Carlos F. Menck (University of São Paulo, Brazil): “Dissecting mutations that lead to Xeroderma Pigmentosum in a tropical and sunny Country” (25 min)
  • Alain Sarasin (University Paris Sud, France): “Targeted gene correction in DNA repair-deficient Xeroderma pigmentosum skin cells” (25 min)
  • Ambra Giglia-Mari (CNRS, Toulouse, France): “Tricotiodistrofi A (Ttda): size does not matter!” (25 min)
  • Toshio Mori (Nara Medical University, Japan): “Quantitative and in situ detection of oxidatively generated DNA damage 8,5’-cyclo-2’-deoxyadenosine using an immunoassay with a novel monoclonal antibody” (15 min)
  • Pascal Plaza (École Normal Superieur, Paris, France): “Photoactivation and two-photon photorepair of the (6-4) DNA photolyase” (15 min)
10:40 - 11:30 Coffee-break
11:30 - 12:30 Parallel Sessions
Keynote Lecture (Sala de las Américas)

11:30 – 12:00 Anderson Garbuglio de Oliveira (Federal University of São Paulo, São José dos Campos, Brazil) - “Fungal Bioluminescence”
Chair: Gabriela Lagorio

12:00 – 12:30 Alberto Kornblihtt (IFIBYNE-CONICET, FCEN, University of Buenos Aires, Argentina) - “A chloroplast retrograde signal regulates nuclear alternative splicing”
Chair: Diana Kirilovsky

Keynote Lecture (Salón de actos, Pabellón Argentina)

11:30 – 12:00 Rosalie Crouch (Medical University of South Carolina, USA) - "Lipofuscin, Retinoids, and the Aging Retina"
Chair: John Spudich

12:00 – 12:30 Hideki Kandori (Nagoya Institute of Technology, Japan) - "Molecular mechanism of Spectral Tunning in Vision"
Chair: Marcus Elstner

Keynote Lecture (Salón Rojo)

11:30 – 12:00 Horacio Zagarese (INTECH, Chascomús, Argentina) - “The structuring role of light in shallow freshwater ecosystems: Dependency on weather and climate”
Chair: Maria Vernet

12:00 – 12:30 Dimitra Markovitsi (CEA Saclay, Gif-sur-Yvette, France) - "UV-induced DNA damage: the role of electronic excited states”
Chair: Graciela Spivak

12:30 - 15:00 Poster Session / Commercial Exhibition / Lunch (Foyer Pabellón Argentina)
  GRAFOB (Grupo Argentino de Fotobiólogos) Assembly (Salón de actos, Pabellón Argentina)
15:00 - 17:10 Parallel Sessions: Symposia
Photoreceptor Signaling in Plants 1 (Sala de las Américas)
Chair: Jorge Casal
  • Akira Nagatani (Kyoto University, Japan): “Inter-organ communications underlying the whole plant response to the shade” (25 min)
  • Rick Vierstra (University of Wisconsin, USA): “Structure, photodynamics, and signaling properties of plant phytochromes” (25 min)
  • Andreas Hiltbrunner (University of Freiburg, Germany): “Interaction of phytochrome A and SPA1 promotes photomorphogenesis in far-red light” (25 min)
  • Christian Fleck (Wageningen University, The Netherlands): “Dimerization determines specificity of Phytochrome B action” (15 min)
  • Eirini Kaiserli (University of Glasgow, UK): “Nuclear dynamics regulating growth in plants” (15 min)
  • Carina V. González (National University Cuyo, Mendoza, Argentina): “Are Vitis vinifera L. plants blind to see their neighbours?” (15 min)
Drug delivery in PDT (Salón de actos, Pabellón Argentina)
Chairs: Adriana Casas and Alexander MacRobert
  • Adriana Casas (CIPyP-CONICET, Buenos Aires, Argentina): “Aminolevulinic acid dendrimers in photodynamic treatment of cancer and atheromatous disease” (25 min)
  • Alexander MacRobert (University College London, UK): “Photodynamic therapy and photochemical internalization for treatment of experimental oral cancer” (25 min)
  • Norbert Lange (University of Geneva and University of Lausanne, Switzerland): “On the cutting edge: Proteolytically-induced drug delivery in imaging and photodynamic therapy” (25 min)
  • Masaya Yamauchi (Osaka University, Japan): “A PDT for hormone antagonistic human prostate cancer cells utilizing protoporphyrin IX lipid delivered by hemagglutinating virus of Japan envelope (HVJ-E) as a non-viral vector” (15 min)
  • Alexander Greer (CUNY, USA): “Point source delivery of a photosensitizer drug and singlet oxygen: eradication of glioma cells in vitro” (15 min)
  • Raquel Galian (University of Valencia, Spain): “Multifunctional platforms as nanocarriers of photodynamic therapy photosensitizers” (15 min)
The Radical-Pair Mechanism as Magnetoreceptor Mechanism (Salón Rojo)
Chairs: Peter Hore and Ilia Solov’yov
  • Peter Hore (University of Oxford, UK): “Photoinduced radical pairs as compass magnetoreceptors” (25 min)
  • Ilia Solov'yov (University of Southern Denmark, Denmark): “Theoretical insights into cryptochrome magnetoreception” (25 min)
  • Henrik Mouritsen (Oldenburg University, Germany): “Light-dependent magnetoreception – Behavioural and neurobiological evidence” (25 min)
  • Giorgio Fedele (University of Leicester, UK): “Magnetoreception in Drosophila melanogaster” (25 min)
  • Christine Niessner (Ludwig Maximilian University, Munich, Germany): “Cryptochrome 1A, the probable receptor molecules for the magnetic compass in birds” (15 min)
Bioinspired Solar-Energy Conversion (Sala 2 – Escuela de Graduados Facultad de Medicina)
Chairs: Ana Moore
  • Ana Moore (Arizona State University, USA): “A Bio-Inspired photoanode for a water splitting photoelectrochemical cell” (25 min)
  • Vincent Artero (Université Grenoble Alpes, France), “Hydrogen evolution: Bioinspired catalysts and artificial hydrogenases” (25 min)
  • Mirco Natali (University of Ferrara): “ Tetrametallic molecular catalysts for photochemical water oxidation” (25 min)
  • Günther Knör (Johannes Kepler University Linz, Austria): “Towards artificial photosynthetic RC. Replacement of PS I and Ferredoxin NADP+ reductase with molecular components” (25 min)
  • Miguel Gervaldo (National University of Rio Cuarto, Argentina): “Bio-inspired Supramolecular Dyes for Application in Optoelectronics Devices” (15 min)
Pteridines and their Photobiological Role (Salón Azul– Escuela de Graduados Facultad de Medicina)
Chairs: Esther Oliveros and Andrés Thomas
  • Andrés Thomas (National University La Plata, INIFTA-CONICET, Argentina): “Photosensitization of proteins and peptides by pterin” (25 min)
  • Esther Oliveros (Paul Sabatier University, Toulouse, France): “Photosensitizing properties of pterin derivatives: structure dependence of the production of reactive oxygen species” (25 min)
  • Dietmar Fuchs (Medical University, Innsbruck, Austria): “Neopterin – indicator of immune activation and oxidative stress” (25 min)
  • Mikhail S. Kritsky (A. N. Bach Institute of Biochemistry, Russian Academy of Sciences, Russia): “Photobiochemistry of pteridines in the context of chemical and biological evolution” (25 min)
  • Andrey Buglak (A. N. Bach Institute of Biochemistry, Russian Academy of Sciences, Russia): “Photooxidation of tetrahydrobiopterin under UV irradiation” (15 min)
Responses to direct and oxidising UV damage (Sala 3 – Escuela de Graduados Facultad de Medicina)
Chairs: Vanesa Gottifredi and Rex Tyrrell
  • DVanesa Gottifredi (Leloir Institute Foundation, Argentina): “The recombinogenic factor, RAD51, facilitates DNA replication after UV irradiation” (25 min)
  • Rex Tyrrell (University of Bath, UK): “UVA radiation and cellular homeostasis – A delicate balance” (25 min)
  • Manuel Muñoz (Lab. of Physiology and Molecular Biology, University of Buenos Aires, Argentina): “UV irradiation, DNA damage and alternative splicing” (25 min)
  • Vivienne Reeve (University of Sydney, Australia): “Endogenous UV-protective pathways: interplay between antioxidant and gender-based functions” (25 min)
  • Christian Opländer (Heinrich Heine University Düsseldorf, Germany): “Blue light (420 nm) irradiation inhibits TFG-beta1-induced myofibroblast differentiation of human dermal fibroblasts” (15 min)
  • Vanesa Pierroz (University of Zürich, Switzerland): “Photoactivatable ruthenium complexes as new anticancer agents” (15 min)
17:10 - 17:45 Coffee-break
17:45 - 18:30 General Assembly IUPB (Salón de actos, Pabellón Argentina)


8:30 - 10:40 Parallel Sessions: Symposia
Carotenoids in Photosynthesis (Sala de las Américas)
Chairs: Claudia Stange and Harry Frank
  • Harry Frank (University of Connecticut, USA): “Carotenoid-to-bacteriochlorophyll energy transfer in LH2 complexes from photosynthetic bacteria grown under different illumination conditions” (25 min)
  • Claudia Stange (University of Chile, Santiago, Chile): “Light and its role in plastid differentiation and carotenoid accumulation in carrot (Daucus carota)” (25 min)
  • Tomas Polivka (University of South Bohemia, Czech Republic): “Carotenoid- induced quenching of chlorophyll-a in a cyanobacterial pigment-protein complex containing high-light induced proteins” (25 min)
  • Manuel Rodríguez-Concepción (CRAG, Barcelona, Spain): “Molecular factors regulating carotenoid biosynthesis in response to light cues” (25 min)
  • Celine Bourcier de Carbon (CEA - Institute of Biology and Technology, Saclay, France): “The cyanobacterial Orange Carotenoid Protein binding canthaxanthin is photoactive and able to quench energy and singlet oxygen” (15 min)
Photochemistry and Phototoxicity of Xenobiotics (Salón de actos, Pabellón Argentina)
Chairs: Juan C. (Tito) Scaiano and Miguel A. Miranda
  • Tito Scaiano (University of Ottawa, Canada): “Photochemistry in nanotechnology: bridging the gap between nanomaterials and nanomedicine” (25 min)
  • Miguel Angel Miranda (Polytechnical University Valencia, Spain): “Photobinding of halogenated drugs to proteins” (25 min)
  • Mauricio Baptista (University São Paulo, Brazil): “Photosensitization of melanin by visible light damages melanocompetent cells” (25 min)
  • Alexis Aspee (University of Chile, Santiago, Chile): “Coumarin excited states and photo-induced free radicals interaction with antioxidants, proteins and membrane models” (25 min)
  • Sascha Fröbel (Heinrich Heyne University, Düsseldorf, Germany): “Femtosecond spectroscopy on the mechanism of psoralen photoaddition to DNA” (15 min)
  • Malgorzata Insiñska-Rak (Adam Mickiewicz University, Poznañ, Poland): “Photochemical reactions of vitamin B2 and its derivatives” (15 min)
Light and Circadian Rhythms (Salón Rojo)
Chairs: Mario E. Guido and Yoshitaka Fukada
  • Takashi Yoshimura (Nagoya University, Japan): “Evolution and origin of seasonal sensor in vertebrates” (25 min)
  • Ruth Rosenstein (Medical School, University of Buenos Aires, Argentina): “Effect of glaucoma on the non-image forming visual system” (25 min)
  • Diego A. Golombek (National University of Quilmes, Argentina): “The early worm catches the light: photic synchronization of circadian rhythms in Caenorhabditis elegans” (25 min)
  • Yoshitaka Fukada (Tokyo University, Japan): “Roles of CAMKII in the mouse circadian clock” (25 min)
  • Agata Carpentieri (INICSA-CONICET, National University Córdoba, Argentina): “Lighting conditions in the early infancy modifies the further functionality of the circadian and the antioxidant systems in rats” (15 min)
Structural Biology of Photoreceptors (Sala 2– Escuela de Graduados Facultad de Medicina)
Chairs: Keith Moffat and Jimena Rinaldi
  • Keith Moffat (Chicago University, USA): “Time-resolved crystallography and design of signalling photoreceptors” (25 min)
  • Jimena Rinaldi (Leloir Institute Foundation, Argentina): “Structural characterization of Brucella LOV-Histidine kinase” (25 min)
  • Francisco Velazquez Escobar (Technical University, Berlin, Germany): “Modulation of the signal transduction activity in bathy phytochromes via photoinduced and thermal cofactor isomerization” (15 min)
  • Xiaojing Yang (University of Illinois at Chicago): “Dynamic crystallography captures primary signalling events in UV photoreceptor UVR8” (25 min)
  • Emina Stojkovic (Northeastern Illinois University, USA): “Crystal structures of the complete photosensory module of a bacteriophytochrome in the Pr state” (15 min)
  • Hernán Bonomi (Leloir Institute Foundation, Argentina), “Structural Study of The Bacteriophytochrome from The Plant Pathogen Xanthomonas campestris” (15 min)
Reactive Oxygen Species Signaling in Plants (Salón Azul– Escuela de Graduados Facultad de Medicina)
Chairs: Klaus Apel and Néstor Carrillo
  • Klaus Apel (Cornell University, USA): “The role of singlet oxygen-mediated and executer-dependent signalling in plants during perception of and response to environmental stress” (25 min)
  • Néstor Carrillo (Institute for Biological Research, IBR, Rosario, Argentina): “Role of chloroplast-generated reactive oxygen species in plant responses to biotic and abiotic stresses” (20 min)
  • Christophe Laloi (Aix Marseille Université, France): “Nuclear response to photochemically generated singlet oxygen in Arabidopsis thaliana” (25 min)
  • Loreto Holuigue (Pontificia Univ. Católica de Chile, Santiago, Chile): “Salicylic acid and the antioxidant response to stress in Arabidopsis” (25 min)
  • Nicolás Blanco (CEFOBI, Rosario, Argentina): “Interplay between plastid and mitochondrial retrograde signalling pathways” (20 min)
  • María Laura Delprato (Institute for Biological Research, IBR, Rosario, Argentina): The role of chloroplastgenerated reactive oxygen species in plant-pathogen interactions” (15 min)
Formation and Repair of Bipyrimidine Photoproducts in DNA (Sala 3 – Escuela de Graduados Facultad de Medicina)
Chairs: Jean Cadet and Craig Elmets
  • Craig Elmets (University of Alabama at Birmingham, USA): “Immunological factors that influence DNA repair processes” (25 min)
  • Jean Cadet (CEA/Grenoble, France): “Solar UV radiation reactions of DNA in cells and skin: bipyrimidine photoproduct formation and repair” (25 min)
  • Dennis Oh (University of California, San Francisco, USA): “Regulation of nucleotide excision repair in epidermal keratinocytes” (25 min)
  • Nicholas Geacintov (New York University, USA): “Nucleotide excision repair of UV-induced cyclobutane pyrimidine and 6-4 photoproducts: insights into the mechanisms of recognition and processing of DNA lesions by the human NER apparatus” (25 min)
  • Virginie Lhiaubet-Vallet (Polytechnic University Valencia, Spain): “Photoreactivity of a thymine derivative from an upper triplet excited state” (15 min)
  • Alexei Kononov (St. Petersburg State University, Russia): “Fast long-range energy transfer and low-lying excited states in DNA” (15 min)
10:40 - 11:30 Coffee-break
11:30 - 12:15 Plenary Session (Sala de las Américas)
Finsen Medal Award Lecture: Herbert Hönigsmann (Medical University, Vienna, Austria) - “Photodermatology and Photomedicine – What is the Future?”
Chair: Henry Lim
12:15 - 13:00 Plenary Session (Sala de las Américas)
Finsen Lecture: Roman Ulm (University of Geneva, Switzerland) - “UVB Photoreceptor Signalling”
Chair: John Spudich


8:30 - 10:40 Parallel Sessions: Symposia
Photoreceptor Signaling in the Natural Plant Environment (Sala de las Américas)
Chairs: Christian Fankhauser and Jorge Casal
  • Jorge Casal (IFEVA, University of Buenos Aires, Argentina): “Perception and transduction of shade signals by photosensory receptors” (25 min)
  • Cristian Fankhauser (University of Lausanne, Switzerland): “Phytochrome interacting factors (PIFs) regulate plant growth in a changing light environment” (25 min)
  • Karen Halliday (University of Edinburgh, Scotland, UK): “Light and temperature control of gene transcription and growth” (25 min)
  • Julian Maloof (University of California Davis, USA): “New insights into shade avoidance from Arabidopsis and tomato” (25 min)
  • Javier Botto (IFEVA, University of Buenos Aires, Argentina): “Function of BBX proteins under shade” (15 min)
  • Jaime Martínez-García (CRAG, Barcelona, Spain): “Cardamine hirsuta, a model for understanding tolerance to vegetation proximity and shade” (15 min)
Mechanisms in PDT (Salón de actos, Pabellón Argentina)
Chairs: Santi Nonell and Mauricio Baptista
  • Michael R. Hamblin (Wellman Lab., Harvard Medical School, Boston, USA): “Type 1, Type 2 and Type 3 photochemical mechanisms in antimicrobial photoinactivation” (25 min)
  • Mauricio S. Baptista (University of São Paulo, Brazil): “In the search for specific mechanisms of photo-induced cell death” (25 min)
  • Santi Nonell (University Ramon Llull, IQS, Barcelona, Spain): “Genetically encoded photosensitizers for photodynamic therapy” (20 min)
  • Luis Arnaut (University of Coimbra, Portugal): “Photodynamic therapy with sulfonamide bacteriochlorins: the rationale used to select a drug candidate in clinical trials” (20 min)
  • Cristiano Viappiani (University of Parma, Italy): “STED microscopy of bacteria loaded with hypericin” (20 min)
Visual Rhodopsins (Salón Rojo)
Chairs: Rosalie Crouch and Ruth Rosenstein
  • Damian Dorfman (Medical School, University of Buenos Aires, Argentina): “Tell me how you live, and I will tell you if your retina will be damaged: Impact of the environment on the retina´s health” (22 min)
  • Luis E. Politi (CRIBA, Bahia Blanca, Argentina): “The challenge of photoreceptor renewal” (22 min)
  • Masahiro Kono (Medical University of South Carolina, USA): “Cone pigment protein interactions with retinoids” (22 min)
  • Yoshikazu Imanishi (Case Western Reserve University, USA): “Dynamic Regulation of Rhodopsin Localization in a Xenopus Laevis Model of Retinitis Pigmentosa” (22 min)
  • Nora Rotstein (CRIBA, Bahia Blanca, Argentina): “Light, lipids and photoreceptor survival: live or let die?” (22 min)
  • Angela Suburo (Universidad Austral, Buenos Aires, Argentina), “Light regulates glucocorticoid receptors in mouse retinal photoreceptors” (20 min)
Plant and Animal Fluorescence and Bioluminescence (Salón Azul – Escuela de Graduados Facultad de Medicina)
Chair: Gabriela Lagorio
  • Gabriela Lagorio (INQUIMAE, University of Buenos Aires, Argentina): “Unveiling the relevance of fluorescence in nature. From biosignals to technological applications” (25 min)
  • Zoran Cerovic (University Paris Sud, France): “Using plant fluorescence in the field to detect crop diseases; How we got there?” (25 min)
  • Mark Hobson (Hamamatsu Corporation, USA): “Thinking in photons: the case for using a standardized intensity unit in fluorescence microscopy” (25 min)
  • Theoharis Ouzounis (University of Southern Denmark, Denmark): “Different dose response effects of blue light on chlorophyll fluorescence parameters, stomatal conductance, and secondary metabolism in green and red leaf lettuce” (15 min)
  • Eugene Vysotski (Institute of Biophysics, Krasnoyarsk, Russia): “Bioluminescence mechanism of hydromedusan calcium-regulated photoproteins” (15 min)
  • Svetlana Markova (Institute of Biophysics, Krasnoyarsk, Russia): “Secreted luciferases of marine copepods: characterization and application prospects as bioluminescent reporters” (15 min)
Evolution of Light Sensing Systems in Photosynthetic Eukaryotes (Sala 2 – Escuela de Graduados Facultad de Medicina)
Chair: J. Clark Lagarias
  • Sarah Mathews (Harvard University, USA): “Phytochrome evolution during the transition to land” (30 min)
  • Aba Losi (Parma University, Italy): “The evolution and functional role of flavin-based prokaryotic photoreceptors” (30 min)
  • Peter Hegemann (Humboldt University, Berlin): “Functional evolution of microbial rhodopsins” (30 min)
  • Sabeeha Merchant (University of California Los Angeles, USA): “Genomic approaches for deciphering chloroplast biogenesis and metabolism” (30 min)
UV-Induced Mutagenesis and Carcinogenesis (Sala 3 – Escuela de Graduados Facultad de Medicina)
Chair: Evelyn Sage
  • Evelyne Sage (CNRS, Institut Curie, France): “DNA damage induced by UVA radiation: role in sunlight mutagenesis and carcinogenesis” (25 min)
  • Hironobu Ikehata (Tohoku University, Sendai, Japan): “Wavelength dependent antigenotoxic response to UVR in skin epidermis” (25 min)
  • Agnieszka Wolnicka-Glubisz (Jagiellonian University, Poland): “A pigment independent interactive pathway between Mc1r and HGF is necessary for UV-induced melanoma in mouse model” (25 min)
  • Justin Mallet (Laval University, Quebec, Canada): “Absence of UV-induced cancer in the human corneal epithelium; comparison of UV-induced cell death and DNA repair of pyrimidine dimers in human corneal epithelium and epidermis” (15 min)
  • Yadong Qi (Southern University Urban Forestry Program, Baton Rouge, USA): “UV radiation and its impact on skin cancer in the United States” (15 min)
10:40 - 11:15 Coffee-break
11:15 - 12:00 Plenary Session (Sala de las Américas)
Plenary Lecture: Nathan Nelson (Tel Aviv University, Israel) - "Evolution of the Photosynthetic Apparatus"
Chair: Alfred Holzwarth
12:00 - 15:00 Poster Session / Commercial Exhibition / Lunch (Foyer Pabellón Argentina)
  IUPB Board Meeting (Salón de actos, Pabellón Argentina)
15:00 - 17:10 Parallel Sessions: Symposia
The Circadian Clock and Flowering (Sala de las Américas)
Chairs: Marcelo Yanovsky and Pablo Cerdán
  • Marcelo Yanovsky (Leloir Institute Foundation, Argentina): “A role for LSM genes in the regulation of circadian rhythms in plants and human cells” (20 min)
  • Pablo Cerdán (Leloir Institute Foundation, Argentina): “A novel thermosensitive flowering mutant” (20 min)
  • Eva Farre (Michigan State University, USA): “Light and the circadian clock mediate time specific changes in UVB sensitivity under light/dark cycles” (25 min)
  • Takato Imaizumi (University of Washington, USA): “The interplay between light and temperature for flowering” (25 min)
  • Stacey Harmer (University of California Davis, USA): “Circadian rhythms are turning heads” (25 min)
  • Julieta Mateos (Leloir Institute Foundation, Argentina): “Combinatorial activity of short vegetative phase and flowering locus C in the repression of flowering time in Brassicaceae” (15 min)
Bioengineering Photosynthetic Cells for Chemicals and Energy (Salón de actos, Pabellón Argentina)
Chairs: Thomas Moore and Roberto Bassi
  • Donald Ort (University of Illinois, USA): “Improving photosynthetic efficiency for improved crop yield” (25 min)
  • Olaf Kruse (University of Bielefeld, Germany): “Microalgae as powerful phototropic tools in Biotechnology” (25 min)
  • Carmen Guedes (State University of Londrina, Brazil): “Microalgae in lipid biomass production and carotenoids” (25 min)
  • Thomas Moore (Arizona State University, USA): “Artificial Photosynthesis – Helping Nature Regain Control of the Global Carbon Cycle” (25 min)
  • Roberto Bassi (University of Verona, Italy): “The quest for high biomass yield of microalgae grown in photobioreactors” (25 min)
Cryptochromes and Photolyases in Microorganisms (Salón Rojo)
Chairs: Tilman Kottke and Alfred Batschauer
  • Tilman Kottke (Bielefeld University, Germany): “Similarities and differences of algal cryptochromes to those of higher plants and animals” (20 min)
  • Alfred Batschauer (Philipps University Marburg, Germany): “The cryptochrome/photolyase family of the biotrophic fungus Ustilago maydis” (20 min)
  • Maria Mittag (Jena University, Germany): “A flavin binding cryptochrome photoreceptor responds to both blue and red light in Chlamydomonas reinhardtii” (25 min)
  • Lars-Oliver Essen (Philipps University Marburg, Germany): “Microbial members of the photolyase/chryptochrome family: common structures, common mechanisms?” (25 min)
  • Fan Zhang (Karlsruhe Institute for Technology, Germany): “Crystal structure of a bacterial class III photolyase reveals a unique binding site for the methenyltetrahydrofolate antenna chromophore and two photoreduction Trp triads” (15 min)
  • Julian Simon (Max Planck Institute for Chemical Energy Conversion, Germany): “ Photobiology of extremophiles: functional analyses of novel photolyases extreme microbes from high-altitude andean lakes (HAAL)” (15 min)
Photoreceptors and Responses to Light in Bacteria”: a (Sala 2 – Escuela de Graduados Facultad de Medicina)
Chairs: Elena Orellano and Klaas Hellingwerf
  • Elena Orellano (Institute for Biological Research, IBR, Rosario, Argentina): “Blue light regulation of Xanthomonas citri supsp. citri virulence during the interaction with citrus plants” (25 min)
  • Klaas Hellingwerf (Free University, Amsterdam, The Netherlands): “Regulation of the general stress response of Bacillus subtilis by light” (25 min)
  • María Elena Mussi (CEFOBI, Rosario, Argentina): “Light regulation in Acinetobacter baumannii: the story continues” (25 min)
  • Rodrigo González (College of Pharmacy and Biochemistry, University of Buenos Aires, Argentina): “Twitching motility inhibition in Acinetobacter baylyi ADP1 is mediated by joint action of three different BLUF photoreceptors” (25 min)
  • Gabriela Sycz (Leloir Institute Foundation, Argentina): “LOVHK regulates the general stress response system and VIRB expression in Brucella abortus” (15 min)
  • Kevin Gallagher (Northeastern Illinois University, USA): “Bacteriophytochromes in myxobacteria: implications for light-controlled morphogenesis” (15 min)
Photoreceptors for Biomedicine and Biotechnology (Salón Azul – Escuela de Graduados Facultad de Medicina)
Chairs: Mark Gomelsky and Matias Zurbriggen
  • Matias Zurbriggen (University of Freiburg, Germany): “Interfacing green and red synthetic biology for the understanding of signalling processes and the development of optogenetic tools” (25 min)
  • Mark Gomelsky (University of Wyoming, USA): “Engineering bacteriophytochrome-based optogenetic tools” (25 min)
  • Jeff Tabor (Rice University, USA): “Using light switchable phytochrome-family two component systems to characterize bacterial gene circuit dynamics” (25 min)
  • Daria Shcherbakova (Albert Einstein College of Medicine, NY, USA): “Engineering of fluorescent proteins from bacterial phytochromes” (25 min)
  • Franziska Schneider (Humboldt University, Berlin): “Phoenix - an optogenetic tool for acidification of synaptic vesicles” (15 min)
  • Claudia Richter (Max Planck Institute for Dynamics and Self Organization, Göttingen, Germany): “Optogenetic control of cardiac arrhythmias” (15 min)
17:10 - 17:45 Coffee-break
17:45 - 18:30 Plenary Session (Sala de las Américas)
Finsen Medal Award Lecture: Douglas Brash (Yale University, USA) - “Skin cancer from the groundstate up”
Chair: Evelyn Sage
21:15 – 21:45 Special Talk/pre - Dinner: Winslow Briggs (Stanford University, USA)
Chair: Roberto Bogomolni
22.00 Cocktail-Dinner


9:00 - 11:10 Parallel Sessions: Symposia
Photoreceptor Signaling in Plants 2 (Sala de las Américas)
Chair: Roman Ulm
  • Gareth Jenkins (University of Glasgow, Scotland, UK): “Photoreception and signalling by the UV-photoreceptor UVR8” (25 min)
  • Ferenc Nagy (Biological Research Centre, Szeged, Hungary): “Phosphorylation of phytochromes alters lightinduced signaling” (25 min)
  • Filip Vandenbussche (Ghent University, Belgium): “The bending response of Arabidopsis etiolated seedlings to ultraviolet B light” (15 min)
  • Andreas Hiltbrunner (University Freiburg, Germany): “Phytochrome Signalling in the Moss Physcomitrella patens" (15 min)
  • H-L. Tsai (Academia Sinica, Taiwan): “Hua enhancer 1 imposes post translational transcriptional regulation of positive and negative regulators in Arabidopsis photomorphogenesis” (15 min)
  • Paula Casati (CEFOBI, Rosario, Argentina): “UVB effects in maize leaves development” (15 min)
Nanoparticles in PDT (Salón de actos en Pabellón Argentina)
Chairs: Mónica González and Cristian Strassert
  • Cristian Strassert (Westfälisches Wilhelms University Münster, Germany): “Photophysics and applications of phthalocyanines @zeolite L” (15 min)
  • Mónica Gonzalez (University of La Plata, INIFTA-CONICET, Argentina): “Silicon quantum dots as photo- and radiosensitizers” (25 min)
  • Daniel Mártire (University of La Plata, INIFTA-CONICET, Argentina): “Pectin-coated silver nanoparticles and singlet oxygen generation” (25 min)
  • Andreas Faust (Westfälisches Wilhelms University Münster, Germany): “Targeted imaging and photoinduced killing of bacterial pathogens utilizing maltohexaose-conjugated probes” (25 min)
  • Malte Grüner (Westfälisches Wilhelms University Münster, Germany): “Photoactive layered nanoclays for the selective inactivation of antibiotics-resistant gram-positive bacteria” (25 min)
  • Przemyslav Labuz (Jagiellonian University, Poland): “Photodynamic activity and activation of small molecules at the surface of nanocrystalline TiO2” (15 min)
Photoinduced Electron Transfer in Proteins and in Model Systems (Salón Rojo)
Chairs: Artur Osyczka and Claudio Borsarelli
  • Artur Osyczka (Jagiellonian University, Poland): “Photoinduced electron transfer in purple bacterial cytochrome BCi exposes kinetics of intermonomer connection” (20 min)
  • Claudio Borsarelli (National University of Santiago del Estero, Argentina): “Modification of its C-terminus in a bacterial ferredoxin/flavodoxin NADP+ reductase modulates spectroscopic and photophysical properties” (20 min)
  • Fabrice Rappaport (CNRS-UPMC, Paris, France): “Shining a new light on the consequences of the ultrastructural organization of bioenergetic electron transfer chains on their function” (25 min)
  • Giovanni Finazzi (University Grenoble Alpes, France): “Regulation of photosynthesis efficiency by light” (25 min)
  • Carlos Chesta (National University of Rio Cuarto, Argentina): “Electron and energy transfer processes in polymeric nanoparticles” (20 min)
  • Joanna Grzyb (Institute of Physics, PAS, Warsaw, Poland): “Photoreduction of ferredoxin and cytochrome c by CdTe quantum dots” (10 min)
  • Agathe Espagne (École Normale Supérieure, Paris, France): “Real-time monitoring of chromophore isomerization and deprotonation during the photoactivation of fluorescent protein DRONPA” (10 min)
Flavins and their roles in Photoreceptors and Photolyases (Sala 2 – Escuela de Graduados Facultad de Medicina)
Chairs: John Kennis and Aba Losi
  • John Kennis (Free University Amsterdam, The Netherlands): “Photoactivation in BLUF domains: proton-coupled electron transfer” (25 min)
  • Tatiana Domratcheva (Max Planck Institute for Medical Research, Heidelberg, Germany): “Complex alternative electron transfer pathways in cryptochromes and photolyases revealed by molecular simulations” (25 min)
  • Dongping Zhong (Ohio State University, Columbus, USA): “Dynamics and mechanism of ultraviolet-damaged DNA repair by photolyase” (25 min)
  • Robert J. Stanley (Temple University, Philadelphia, USA): “A comparative study of extremophile DNA photolyases” (25 min)
  • Pavel Müller (CEA-Institute of Biology and Technology, Saclay, France): “ATP binding turns plant blue-light receptor cryptochrome into an efficient natural photoswitch by altering electron- and proton transfer pathways” (15 min)
  • Luis Larrondo (Pontificia Universidad Católica de Chile, Chile): “ Characterization of light and circadian regulation in the necrotrophic fungus Botrytis cinerea and its role in pathogenesis using Arabidopsis thaliana as a plant model” (15 min)
UV Radiation in a Changing Climate (Salón Azul– Escuela de Graduados Facultad de Medicina)
Chair: Esteban Balseiro
  • Esteban Balseiro (INIBIOMA, National University Comahue, Argentina): “Glacier melting, UVR impact and stoichiometric implications for zooplankton species distribution” (25 min)
  • Patrick Neale (Smithsonian Environmental Research Centre, USA): “Spectral weighting functions for UV inhibition of photosynthesis in the globally important picophytoplankton, Synechococcus and Prochlorococcus” (25 min)
  • María Alejandra Marcoval (National University of Mar del Plata, Argentina): “An update on the effects of ultraviolet radiation on the marine crustaceans” (25 min)
  • Terje Christensen (Norwegian Radiation Protection Authority, Norway): “Ultraviolet radiation and multiple stressor effects on zebra fish embryos” (25 min)
  • Jason Pellettieri (Keene State College, NH, USA): “Light-induced depigmentation in the fresh water planarian Schmidtea mediterranea” (15 min)
  • Stefany Rocha (University of San Andres, UMSA, La Paz, Bolivia): “The first high frequency monitoring of lake Titicaca: global change impact on phytoplankton vertical profiles and UVR-PAR attenuation” (15 min)
Photoaging: Molecular Mechanisms (Sala 3 – Escuela de Graduados Facultad de Medicina)
Chair: Jean Krutmann
  • Jean Krutmann (Leibniz Research Institute fur Environmental Medicine, Düsseldorf, Germany): “Photoaging beyond UV: The role of infrared radiation” (25 min)
  • Franz Trautinger (Karl Landsteiner University of Health Sciences, Austria): “Heat shock proteins in skin aging and photoprotection” (25 min)
  • Alessandra L. Cecchini (State University of Londrina, Brazil): “Oxidative stress in skin damage. From aging to carcinogenesis” (25 min)
11:10 - 11:30 Coffee-break
11:30 - 12:15 Plenary Session (Sala de las Américas)
Edna Roe Lecture: Chikako Nishigori (Kobe University, Japan) - “Current Concepts on photocarcinogenesis”
Chair: Franz Trautinger
12:15 - 13:00 Plenary Session (Sala de las Américas)
Plenary Lecture: Ernst Bamberg (Max Planck Institute for Biophysics, Frankfurt, Germany) - “Microbial Rhodopsins: Molecular Mechanism and Optogenetics”
Chair: Wolfgang Gärtner
13:00 - 15:00 Poster Session / Commercial Exhibition / Lunch (Foyer Pabellón Argentina)
15:00 - 17:10 Parallel Sessions: Symposia
Phototropins Signaling in Plants (Sala de las Américas)
Chairs: Masamitsu Wada and John Christie
  • John Christie (University of Glasgow, Scotland, UK): “Engineering phototropin activity” (25 min)
  • Ken-Ichiro Shimazaki (Kyushu University, Japan): “Identification of signaling components in blue-light response of stomata” (25 min)
  • Satoru Tokutomi (Osaka Prefecture University, Japan): “Molecular basis for photoactivation of phototropin kinase” (25 min)
  • Mannie Liscum (University of Missouri, USA): “Modulation of phot-dependent phototropism through posttranslational modification” (25 min)
  • Masahide Terazima (Kyoto University, Japan): “Conformational dynamics of the N- and C-terminal helices of Arabidopsis phototropin I LOV2” (15 min)
  • Masahiro Kasahara (Ritsumeikan University, Japan): “Light-dependent chloroplast localization in photoverexpressing protoplasts of Physcomitrella patens” (15 min)
Engineered (Photo) Functional Proteins (Salón de actos, Pabellón Argentina)
Chair: Andreas Möglich
  • Christof Taxis (Philipps University Marburg, Germany): “A LOV2 domain-based optogenetic tool to regulate protein stability in eukaryotic cells” (25 min)
  • Andreas Möglich (Humboldt University, Berlin): “A red-light-activated human CAMP/CGMP-specific phosphodiesterase” (25 min)
  • Harald Janovjak (Institute of Science and Technology, Austria): “Synthetic physiology: optical control of cellular survival signals” (25 min)
  • Giomar Rivera-Cancel (Univ. Texas, Southwestern Medical Center): “Something old, something new, something blue: A LOV-HK reveals new and shared strategies for signal transduction” (25 min)
  • Wilfried Weber (University of Freiburg, Germany): “Development of synthetic networks for the processing and integration of optical signal inputs into novel system functionalities in mammalian cells” (25 min)
Photobiology in Extremophiles (Salón Rojo)
Chairs: Virginia Albarracín and Alfonso Dávila
  • Virginia Albarracín (PROIMI, Tucuman, Argentina): “Biodiversity and adaptation mechanisms of extremophiles thriving in the highest UV-exposed ecosystems on earth” (20 min)
  • Alfonso Dávila (NASA Ames Research Centre, USA): “Photosynthesis in the hyperarid Atacama desert” (20 min)
  • Cristina Dorador (University of Antofagasta, Chile): “Effects of the UV Radiation in phototrophic communities of Salar de Huasco, Chilean Altiplano” (25 min)
  • Wade Jeffrey (University of West Florida, USA): “Does cold ultraviolet radiation affect microbes the same as hot UV?” (25 min)
  • Ian Hawes (University of Canterbury, New Zealand): “Photosynthetic communities under thick ice cover in Antarctic lakes and coastal waters” (25 min)
  • Klaudia L. Hernández (Austral University, Valdivia, Chile): “Does solar radiation affect evenly microbial activity? 2785 m closer to the stars: Salar de Huasco study case” (15 min)
Vitamin D and Ultraviolet Exposure (Sala 2 – Escuela de Graduados Facultad de Medicina)
Chairs: Susana Díaz and Anthony Young
  • Robyn Lucas (Australian National University, Australia): “The physiological need for Vitamin D, diseases associated with its deficiency and its correct assessment” (25 min)
  • Hans-Christian Wulf (University of Copenhagen, Denmark): “The Ultraviolet Exposure Needed to Maintain Adequate Vitamin D Levels” (25 min)
  • Antony Young (King’s College, London, UK): “Correct sunscreen use prevents sunburn but allows vitamin D synthesis” (25 min)
  • Susana Díaz (INGEBI-CONICET, Argentina): “UV radiation and vitamin D in Southern South America” (25 min)
  • Bibi Petersen (University of Copenhagen, Denmark): “Sun behaviour, personal UVR exposure, DNA photodamage and Vitamin D among Europeans on short term holidays” (20 min)
17:10 Congress Closing
  Posters Awards Presentation

Day-by-day Scientific Programme (6.19 MB)