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Curriculum vitae
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Mário Fragata
Professor
Université du Québec à Trois-Rivières
Département de chimie-biologie, Section de chimie et biochimie
Trois-Rivières, Que, G9A 5H7, Canada
Tel: (819)376-5011, ext 3306 or 3311
Fax: (819)376-5057;...Email: fragata@uqtr.ca
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•.Academic Background
•.Positions Held
•.Studentships & Awards
•.Historical Corner
•.Students (B.Sc.,M.Sc.,Ph.D.)
•.Postdoctoral Fellows
  & Visiting Scientists		 •.Publications
........-2010
2009-2000
1999-1990
1989-1980
1979-1970
1969-1960
•.Communications
•.Conferences
•.Internet Conferences
•.Research Projects
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ACADEMIC BACKGROUND
1967-1969 Post-doctorate (plant embryo development), University of Manitoba, Department of Plant Science, Winnipeg, Manitoba, Canada
1964-1967 Doctorate (D. ès Sc., physiology and biochemistry of plant hormones), Université de Lausanne, Switzerland
1962-1967 Research assistant, Institut de physiologie et de biochimie végétales, Université de Lausanne, Switzerland
1962-1964 Master's (plant physiology), Université de Lausanne, Switzerland .....,,,,,.......................
1961-1962 Research assistant, Department of Botany, Hebrew University of Jerusalem, Israel .........
1960-1961 Research assistant, Fisheries Institute, Lisboa, Portugal ................................................
1959-1960 Research assistant, Instituto de Botânica, Faculdade de Ciências, Universidade de Lisboa, Portugal
1955-1960 Licence ès sciences (L. ès Sc., biology), Universidade de Lisboa, Portugal.....................
1952-1955 October 1955:  Entrance examination at the Faculdade de Ciências, Universidade de Lisboa, Portugal
November 1st, 1952 to September 30, 1955:  High-School Program of studies (free student at evening schools in Lisboa, Portugal)
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POSITIONS HELD IN CANADA
1970-present, Professor, Université du Québec à Trois-Rivières, Département de chimie-biologie ......................(Section de chimie: since 1995), Canada
2004-present, Membre du Groupe de recherche en biologie végétale (GRBV), Université du Québec à .....................Trois-Rivières, Canada
1995-2004,.....Membre du Groupe de recherche en énergie et information biomoléculaires (GREIB), .....................Université du Québec à Trois-Rivières, Canada
1981-1995,.....Membre du Centre de recherche en photobiophysique (CRP), Université du Québec à .....................Trois-Rivières, Canada
1979-1981,.....Director, Comité d'études avancées en biophysique (CEAB), Université du Québec à .....................Trois-Rivières, Canada
1971-1981,.....Membre du Groupe de recherche en biophysique, Université du Québec à Trois-Rivières, .....................Canada
1969-1970,.....High-School teacher, Ecole secondaire MacDonald-Cartier, Sudbury, Ontario, Canada
1967-1969,.....(see above, Academic Background)
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POSITIONS HELD ELSEWHERE
1997-1998, Visiting professor, University of Miami, Department of Chemistry, Miami, FL, USA
1997,.........Visiting professor, Université de Lausanne, Institut Suisse de la Recherche Expérimentale .................sur le Cancer (ISREC), Bioinformatics Group, Lausanne, Switzerland
1992,.........Invited professor, Akdeniz University, Department of Chemistry, Antalya, Turkey
1989,.........Invited professor, Chalmers University of Technology, Institute of Physical Chemistry, .................Göteborg, Sweden
1987,.........Invited professor, Chalmers University of Technology, Institute of Physical Chemistry, .................Göteborg, Sweden
1984,.........Invited professor, Chalmers University of Technology, Institute of Physical Chemistry, .................Göteborg, Sweden
1982,.........Invited professor, Chalmers University of Technology, Institute of Physical Chemistry, .................Göteborg, Sweden
1981,.........Invited professor, Kyoto University, Department of Biophysics, Kyoto, Japan
1979,.........Visiting professor, Kyoto University, Department of Biophysics, Kyoto, Japan
1975,.........Visiting professor, University of Cambridge, Department of Physiology, Cambridge, UK
1975,.........Visiting professor, University of Virginia Medical School, Department of Biochemistry, .................Charlottesville, Virginia, USA
1969-1975,.(see above, Positions held in Canada)
1961-1969,.(see above, Academic Background)
1960-1961,.High-School teacher, Liceu Camões, Lisboa, Portugal
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STUDENTSHIPS
1965-1967, Fonds National Suisse pour la Recherche Scientifique (studies at Université de Lausanne, .................Switzerland) 
1965,.......  Calouste Gulbenkian Foundation (studies at Université de Lausanne, Switzerland) 
1964-1965, NATO (studies at Université de Lausanne, Switzerland)
1963-1964, NATO (studies at Université de Lausanne, Switzerland) 
1962-1963, NATO (studies at Université de Lausanne, Switzerland) 
1961-1962, State of Israel (studies at Hebrew University of Jerusalem, Israel)
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AWARDS
2004,.......  25 years of excellence, The Natural Sciences and Engineering Research Council of Canada .................(NSERC)
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HISTORICAL CORNER
Early work in Photosynthesis Research in Canada (1945-early 1970s)
Review by Paul R.Gorham and Constance G.Nozzolillo
 
 
 
 
 
 
 
 
 
 
 

 
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Academic Background.|.Positions Held.|.Research Projects.|.Communications
.Conferences.|.Internet Conferences.|.Students.|.Postdoctoral Fellows & Visiting Scientists
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PUBLICATIONS
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........-2010
81 Fragata M (2010) How much does the Qy dipole moment deviates from the X axis in the chlorophyll a macrocycle?  (in preparation)
80
 Viruvuru V, Fragata M (2010) Quantum requirement for oxygen evolution in isolated photosystem II particles.  Effect of light intensity and exogenous electron acceptors  (in preparation)
79
 Fragata M, Viruvuru V (2010) Photochemical cooperativity in photosystem II. Theoretical inquiry into the oxygen evolution dependence on light intensity and temperature  (in preparation)
78
 Viruvuru V, Bekale L, Dobrotescu G, Fragata M (2010) Temperature dependence of oxygen evolution in the thylakoid membrane. Effect of low and high light intensities (in preparation)
77
 Joly D, Govindachary S, Fragata M (2009) Photosystem II Reconstitution into Proteoliposomes and Methodologies for  Structure-Function Characterization. In: Methods in Molecular Biology:  Photosynthesis Research.Protocols, 2nd edition (R. Carpentier, ed.).  Humana Press, Totowa, NJ (invited paper in print).

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2009-2000
76 Fragata M, Viruvuru V (2009) Temperature dependence of oxygen evolution in the thylakoid membrane. Thermal transitions above 273 K in steady-state conditions. J. Phys. Chem. B 113, 15392-15398.
75 Viruvuru V, Fragata M (2008) Photochemical cooperativity in photosystem II. Characterization of oxygen evolution discontinuities in the light-response curves.  Phys. Chem. Chem. Phys. 10, 6607-6614. 
74 Fragata M,  Viruvuru V (2008) Quantum requirement for oxygen evolution in photosystem II: new experimental data and theoretical solutions. In:  Photosynthesis. Energy from the Sun: 14th International Congress on Photosynthesis (J.F. Allen, E. Gantt, J.H. Golbeck, B. Osmond, eds.), pp. 401–404. Springer: Dordrecht, The Netherlands. 
73 Fragata M, Viruvuru V, Dudekula S (2007) Theoretical consideration of the use of a Langmuir adsorption isotherm to describe the effect of light intensity on electron transfer in photosystem II.  J. Phys. Chem. B 111, 3315-3320. 
72 Dudekula S, Fragata M (2006) Investigation of the electron transfer site of p-benzoquinone in.in isolated photosystem II particles and thylakoid membranes using.a- and b-cyclodextrins.  J. Photochem. Photobiol. B: Biol. 85, 177-183. 
71 Fragata M, Dudekula S (2005) Nonlinear enhancement of oxygen evolution in thylakoid  membranes:  modeling the efect of light intensity and b-cyclodextrin concentration. J. Phys. Chem. B 109, 14707-14714. 
70 Fragata M, Dudekula S (2005) a- and b-Cyclodextrins, two new uncouplers of electron transport and ATP synthesis in the thylakoid membrane.  In: Photosynthesis: Fundamental Aspects to Global Perspectives (A. van der Est, D. Bruce, eds). ACG Publishing: Lawrence, KS.
69 Dudekula S, Sridharan G, Fragata M (2005) Effect of a- and b-cyclodextrins on the photochemical activity of thylakoid membranes and photosystem II particles from barley (Hordeum vulgare): oxygen evolution and whole chain electron transport. Can. J. Bot. 83, 320-328. 
68 Fragata M (2004) 233 years ago Joseph Priestly discovers photosynthesis.  In: 13th International Congress on Photosynthesis, Montréal. download (htm)
67 Fragata M (2004) Photosystem II Reconstitution into Proteoliposomes.  Structure-Function Characterization. In: Methods in Molecular Biology, vol. 274:  Photosynthesis Research.Protocols (R. Carpentier, ed.), pp. 183-204.  Humana Press, Totowa, NJ (invited paper).
66 Sridharan G, Daneau E, Fragata M (2002) Relationship between chlorophyll a fluorescence induction and oxygen evolution in barley thylakoids treated with a-, b- and g-cyclodextrins. Can. J. Bot. 80, 741-751. 
65 Fragata M (2001) Functional and structural cooperativity in photosystem II.  Revisiting the 'CF
model (1991)' in the frame of the new 'PSII dimer structures'.  In: PS2001 Proceedings: 12th International Congress on Photosynthesis. CSIRO Publishing: Melbourne, Australia.
download abstract (PDF 43K)..or.poster (PDF 339K)
64 Fragata M, Kajava A (2001) Modelled complex between cytochrome f and cytochrome c6.  RCSB Protein Data Bank, accession number 1JX8.  download 1jx8.pdb
63 Sridharan G, Gaudreau S, Dalstein L, Huiban C, Lejeune A, Fragata M (2001) Effect of a-, b- and g-cyclodextrins on oxygen evolution in the thylakoid membrane.  Influence of pH and temperature. Z. Naturforsch. 56c, 792-802.  download (PDF 29K, abstract)
62 Gabashvili IS, Joshi M, Fragata M (2000) Structure of polypeptides and biopolymers probed with FT-IR spectroscopy.  The tyrosine ring stretching modes in poly (L-tyrosine) and photosystem II.  Recent Res. Devel. Physical Chem. 4, 83-99.
61 Ségui JA, Maire V, Gabashvili IS, Fragata M (2000) Oxygen evolution loss and structural.transitions in photosystem II induced by low intensity UV-B radiation of 280 nm wavelength. J. Photochem. Photobiol. B: Biol. 56, 39-47. 
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1999-1990
60 Joshi, M., Fragata, M. (1999) Heat-induced changes in the photochemical centres and the protein secondary structures of photosystem II studied by variable fluorescence and difference FT-IR spectroscopy.  Z. Naturforsch. 54c, 35-43.
59 Gabashvili IS, Menikh A, Ségui J, Fragata M (1998) Protein structure of photosystem II studied by FT-IR spectroscopy.  Effect of digalactosyldiacylglycerol on the tyrosine side chain residues. J. Mol. Struct. 444, 123-133. 
58 Nénonéné EK, Fragata M (1998)Incorporation of photosystem II proteins into non-aggregated and electrically neutral phosphatidylcholine membranes enhances the oxygen-evolving activity.  Chem. Phys. Lipids 91, 97-107. 
57 Nénonéné EK, Méthot M, Fragata M (1998) Effect of MgCl2 and phosphatidylglycerol on CaCl2-mediated recovery of oxygen evolution in a photosystem II complex depleted of the 17 and 24 kDa extrinsic proteins. Z. Naturforsch. 53c, 39-48.
56 Fragata M (1998) The beginnings of the atomic theory.  In: Principles of Chemistry (CHM111), Spring semester, University of Miami, Department of Chemistry, Florida, U.S.A. 
download (PDF 11K)
55 Fragata M, Bellemare F, Nénonéné EK (1997) Mg(II) adsorption to a phosphatidylglycerol model membrane studied by atomic absorption and FT-IR spectroscopy.  J. Phys. Chem. 101, 1916-1921. 
54 Fragata M, Nénonéné EK, Maire V, Gabashvili IS (1997) Structure of the phosphatidylglycerol-photosystem II complex studied by FT-IR spectroscopy.  Mg(II) effect on the polar head group of phosphatidylglycerol.  J. Mol. Struct. 405, 151-158.
53 Fragata M (1996) Y-a-t-il eu vie sur la planète Mars?  En Tête, Université du Québec à Trois-Rivières (12 septembre 1996).
52 Fragata M, Menikh A, Nénonéné EK (1994) Functional and structural aspects of the thylakoid lipids in oxygen evolution in photosystem II.  Trends in Photochem. Photobiol. 3, 201-210.
51 Fragata M, Menikh A, Tazi A (1994) Cooperative photosystem II units as prospective building-blocks in artificial photosynthesis devices.  In: Synthetic Membranes in Science and Industry, pp. 7-10.  Dechema e.V., Frankfurt.
50 Menikh A, Fragata M (1994) Protein secondary structure of the photosystem II complex studied by FT-IR spectroscopy.  Changes in the amide I region mediated by digalactosyldiacylglycerol and divalent cations.  J. Mol. Struct. 319, 101-107.
49 Ségui JA, Fragata M (1994) Photoinhibition of oxygen-evolving activity in photosystem II particles by shortwave ultraviolet radiation (280 nm) of low intensity.  Plant Physiol. (Life Sci. Adv.) 13, 321-327.
48 Fragata M, Menikh A, Robert S (1993) Salt-mediated effects in nonionic lipid bilayers constituted of digalactosyldiacylglycerol studied by FTIR spectroscopy and molecular modellization. J Phys.Chem. 97, 13920-13926.
47 Menikh A, Fragata M (1993) Fourier transform infrared spectroscopic study of ion binding and intramolecular interactions in the polar head of digalactosyldiacylglycerol. Eur. Biophys. J. 22, 249-258.
46 Nordén B, Fragata M, Kurucsev T (1992) X- and Y-polarized spectra of chlorophyll a and pheophytin a in the red region:  resolution enhancement and Gaussian deconvolution. Austral. J. Chem. 45, 1559-1570.
45 Fragata M (1991) Resolved Qx  and Qy electronic transitions in chlorophyll a. In: Light in Biology and Medecine (R.H. Douglas, J. Moan and G. Rontó, eds.), vol. 2, pp.393-399.  Plenum Press, New York.
44 Fragata M, Strzalka K, Nénonéné EK (1991) MgCl2-induced reversal of oxygen evolution decay in photosystem II particles incubated with phosphatidylglycerol vesicles at high lipid/photosystem II ratio. J. Photochem. Photobiol. B: Biol. 11, 329-342.
43 Fragata M, Bellemare F (1990) Adsorption of Mg2+, Ca2+ and Mn2+ to bilayer vesicles constituted of phosphatidic acid, phosphatidylglycerol and phosphatidylserine. In: Metal Ions in Biology and Medecine (P. Collery, L.A. Poirier, M. Manfait and J.C. Etienne, eds.), pp. 573-575.
John Libbey, London-Paris.
42 Fragata M, Nénonéné EK, Bellemare F, Champagne N, Dupont I (1990) Characterization of oxygen evolution activity of low molecular mass photosystem 2 preparations from barley and spinach isolated by gel chromatography. Photosynthetica 24, 249-256.
41 Fragata M, Nénonéné EK, Bernier F (1990) Phosphatidylglycerol effect on oxygen evolution  activity of photosystem II particles from barley chloroplasts.  In: Current Research in Photosynthesis (M. Baltscheffsky, ed.).  Kluwer Academic Publishers, pp. 945-948.
40 Nénonéné EK, Fragata M (1990) Effects of pH and freeze-thaw on photosynthetic oxygen evolution of photosystem II particles incorporated into phosphatidylglycerol bilayers.
.J. Plant Physiol. 136, 615-620.
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1989-1980
39 L'Heureux GP, Fragata M (1989) Monomeric and aggregated pyrene and 16-(1-pyrenyl)hexadecanoic acid in small, unilamellar phosphatidylcholine vesicles and ethanol-buffer solutions. J. Photochem. Photobiol. B: Biol. 3, 53-63.
38 L'Heureux GP, Fragata M (1989) Fluorescence characteristics of pyrene and phosphatidylamine-bound pyrene incorporated into lipid vesicles solubilized in media of differing
NaCl concentrations. Biophys. Chem. 34, 163-168.
37 Camm EL, Popovic R, Lorrain L, Leblanc RM, Fragata M (1988) Photoacoustic characterization of energy storage of photosystem 2 core-enriched particles from barley isolated with the octyl-b-glucopyranoside detergent. Photosynthetica 22, 27-32.
36 Fragata M, Nordén B, Kurucsev T (1988) Linear dichroism (250-700 nm) of chlorophyll a and pheophytin a oriented in a lamellar phase of glycerylmonooctanoate/H2O.  Characterization of electronic transitions.  Photochem. Photobiol. 47, 133-143.
35 L'Heureux GP, Fragata M (1988) Micropolarities of lipid bilayers and micelles. 5. Localization of pyrene in small unilamellar phosphatidylcholine vesicles.  Biophys. Chem. 30, 293-301.
34 Fragata M, Kurucsev T, Nordén B (1987) X- and Y-polarized absorptions of chlorophyll a and
pheophytin a oriented in a lamellar phase of glycerylmonooctanoate/water. In: Progress in Photosynthesis Research (J. Biggins, ed.), vol. I, pp. I.3.337-340. Martinus Nijhoff Publishers, Dordrecht.
33 Fragata M, Lessard JG, Bellemare F (1987) Effects of monovalent ions on the dielectric constant of the water-lipid interface of unilamellar vesicles constituted of phosphatidylcholine. In: Proceedings of the 1987 International Congress on Membranes and Membrane Processes, pp. 741-742.  The Membrane Society of Japan, Tokyo.
32 Fragata M, Popovic R, Camm EL, Leblanc RM (1987) Pheophytin-mediated energy storage of photosystem II particles detected by photoacoustic spectroscopy.  Photosynth. Res. 14, 71-80.
31 L'Heureux GP, Fragata M (1987) Micropolarities of lipid bilayers and micelles. 4. Dielectric constant determinations of unilamellar phosphatidylcholine vesicles with the probes pyrene and 16-(1-pyrenyl)hexadecanoic acid.  J. Colloid Interface Sci. 117, 513-522.
30 Lessard JG, Fragata M (1986) Micropolarities of lipid bilayers and micelles. 3. Effect of monovalent ions on the dielectric constant of the water-membrane interface of unilamellar
phosphatidylcholine vesicles.  J. Phys. Chem. 90, 811-817.
29 Fragata M, Bellemare F (1985) Micropolarities of lipid bilayers and micelles. II. Application limits of dielectric constant determinations with the polarity probe a-tocopherol. J. Colloid Interface Sci. 107, 553-559. 
28 Fragata M, El-Kindi M, Bellemare F (1985) Mixing of single-chain amphiphiles in two-chain lipid bilayers. 2. Characteristics of chlorophyll a and a-tocopherol incorporation in unilamellar phosphatidylcholine vesicles. Chem. Physics Lipids 37, 117-125.
27 Fragata M, Ohnishi S, Asada K, Ito T, Takahashi M (1984) Lateral diffusion of plastocyanin in multilamellar mixed-lipid bilayers studied by fluorescence recovery after photobleaching. Biochemistry 23, 4044-4051.
26 Fragata M, Bellemare F (1983)Toward a multistep mechanism of cytochrome c reactivity. Answer to a comment. Biophys. Chem. 18, 207-210.
25 Fragata M, Bellemare F (1982) Dielectric constant dependence of biological oxidation-reduction. 1. A model of polarity-dependent ferrocytochrome c oxidation. Biophys. Chem. 15, 111-119.
24 Hotchandani S, Leblanc RM, Clarke RH, Fragata M (1982) Zero field optical detection of magnetic resonance of triplet state of chlorophyll a in lipid bilayer vesicles.  Photochem. Photobiol. 36, 235-240.
23 Bellemare F, Fragata M (1981) Transmembrane distribution of a-tocopherol in single-lamellar mixed lipid vesicles.  J. Membrane Biol. 58, 67-74.
22 Fragata M (1981) Adaptive control model for the photosynthetic evolution of oxygen under a flash sequence. In:  Photosynthesis II. Electron Transport and Photophosphorylation (G. Akoyunoglou, ed.), pp. 415-424.  Balaban International Science Services, Philadelphis, PA.
21 Fragata M (1981) Temperature effects on the polarity of lipid bilayers and the localization of amphiphilic flavins in artificial membrane vesicles. J. Membrane Biol. 60, 163.
20 Bellemare F, Fragata M (1980) Polarity studies on the head group of single-layered phosphatidylcholine-a-tocopherol vesicles. J. Colloid Interface Sci. 77, 243-252.
19 Fragata M, Bellemare F (1980) Model of singlet oxygen scavenging by a-tocopherol in biomembranes. Chem. Phys. Lipids 27, 93-99.
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1979-1970
18 Fragata M (1978) Interaction of chlorophyll a with b-carotene in phosphatidyl choline bilayers. J. Colloid Interface Sci. 66, 470-474.
17 Fragata M (1977) Les membranes biologiques artificielles.  In:  Proceedings of the Symposium "Membranes Biologiques Artificielles", p. 58.  Trois-Rivières, Québec.
16 Fragata M (1977) On the location of the tetrapyrrole macrocycle of chlorophyll a in phospholipid vesicles and in hexadecane. Experientia 33, 177-178.
15 Fragata M (1977) A far-red absorbing form of chlorophyll a detected in phosphatidylcholine vesicles. Photosynthetica 11, 296-301.
14 Fragata M (1975) Effects of aging on chlorophyll fluorescence and photosystem II electron transport in isolated chloroplasts.  Can. J. Bot. 53, 2842-2845.
13 Kalra SK, Fragata M (1974) Effect of tropolone on the binding of [3H]colchicine to brain tubulin. FEBS Letters 42, 112-115. 
12 Fragata M (1972) Endogenous recovery from colchicine-induced inhibition of growth.  Experientia 28, 506-507.
11 Fragata M (1970) The mitotic apparatus, a possible site of action of gibberellic acid. Die
Naturwissenschaften 57, 139-141.
10 Fragata M (1970) A hypothesis concerning the use of colchicine as a polyploidy inducer.  Experientia 26, 104-106.
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1969-1960
 9 Fragata M (1969) Effect of temperature and physiological age of Triticinae embryos on the morphogenetic response to colchicine treatments.  Department of Plant Science, University of Manitoba, Winnipeg.
 8 Fragata M (1968) Colchicine treatment of Triticinae embryos and seedlings.  Department of Plant Science, University of Manitoba, Winnipeg.
 7 Fragata M (1968) In vitro culture of Triticinae embryos and possible effect of endogenous substances on embryo development.  Department of Plant Science, University of Manitoba, Winnipeg.
 6 Fragata (1967) Culture in vitro des racines de Daucus carota L.: étude de quelques problèmes métaboliques.  Thèse de doctorat (D. ès Sc.), Université de Lausanne, Faculté des Sciences.  Zwahlen-Impression, Lausanne, Suisse.
 5 Pilet PE, Fragata M (1966) Séparation, par chromatographie sur silice, du tryptophane et de l'acide b-indolylacétique. Physiol. Vég. 4, 379-387.
 4 Pilet PE, Fragata M (1965) A propos de l'extraction et de l'absorption du tryptophane dans les racines de Carotte cultivées in vitro. C. R. Acad. Sc. Paris261, 513-516.
 3 Pilet PE. Fragata M (1963) Protéines et gradients auxines-oxydasiques dans les racines de carottes cultivées in-vitro. Rev. Gén. de Bot. 70, 572-587.
 2 Fragata M (1962) Studies on Salsola inermis. Department of Botany, Hebrew University of Jerusalem, Israel.
 1 Fragata M (1960) Scheme of studies on drought resistance.  Memoir to the Hebrew University of Jerusalem, Israel.
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Academic Background.|.Positions Held.|.Research Projects.|.Publications.
.Conferences.|.Internet Conferences.|.Students.|.Postdoctoral Fellows & Visiting Scientists
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COMMUNICATIONS
...-2000
- Viruvuru V, Fragata M "Photochemical cooperativity in the photosysthem II reaction center".  34th Meeting of the American Society for Photobiology (Burlingame, CA, June 20-25, 2008). 
- Fragata M, Viruvuru V "Quantum  requirement for oxygen evolution in photosysthem II.  New experimental data and theoretical solutions".  14th International Photosynthesis Congress (Glasgow, U.K., July 21-27, 2007). 
- Fragata M, Viruvuru V "Mathematical formulation of oxygen evolution in photosynthesis using a Langmuir equation".  6th European Biophysics Congress (London, U.K., July 13-19, 2007).
- Viruvuru V, Fragata M "Novel mathematical formulation of oxygen evolution in photosystem II
using a Langmuir adsorption isotherm".  Twenty Fourth Annual Eastern Regional Photosynthesis Conference (Woods Hole, MA, April 20-22, 2007).

- Dudekula S, Fragata M "Cyclodextrins in drug delivery:  ATP synthesis inhibition by alpha- and beta-CDs but not gamma-CD".  31st FEBS Congress, Molecules in Health & Disease (Istanbul, June 24-29, 2006).
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- Dudekula S, Fragata M "Cyclodextrins in biomembranes and biotechnology. The case of the ATP synthesis inhibition". Lipids, Liposomes and Biomembranes 2005: New Technologies (Vancouver, July 26-30, 2005).
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- Fragata M, Dudekula S"a- and b-Cyclodextrins, Two new uncouplers of electron transport and ATP synthesis in the thylakoid membrane". 13th International Congress on Photosynthesis (Montréal, August 29 - September 3, 2004).
- Fragata M "Structure-activity correlations in photosystem II probed with FT-IR spectroscopy". International Satellite Meeting in honor of Prof. Norio Murata “Photosynthesis and Post-Genomic Era: From Biophysics to Molecular Biology, a Path in the Research of Photosystem II” (Trois-Rivières, August 25-28, 2004). 
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- Fragata M "Molecular evolution of bioelectron transfer.  Hydrophobicity conservation in the docking surfaces of redox protein partners:  the case of cyt f-cyt c6 and cyt f-plastocyanin".  XIX International Congress of Biochemistry and Molecular Biology. (Montréal, Octobrer 8-11, 2003). 
download abstract (PDF)
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-.Fragata, M. "Modelled Complex between Cytochrome f and Cytochrome c6.  Geometry of Electron Transfer Pathways".  46th Annual Meeting of the Biophysical Society.  (San Francisco, CA, February 23-27, 2002).  Biophys.J., 82 (2002) 1618.
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-.Fragata, M. "Functional and structural cooperativity in photosystem II.  Revisiting the 'CF model (1991)' in the frame of the new 'PSII dimer structures'".  12th International Congress of Photosynthesis.  (Brisbane, Australia, August 18-23, 2001). 
download paper (PDF 43K)  or .poster (PDF 339K)
-.Fragata, M. "Hydrophobicity conservation in the surfaces of docking of plastocyanin and   cytochrome c6 with cytochrome f".  45th Annual Meeting of the Biophysical Society.     (Boston, MA, February 17-21, 2001). Biophys. J., 80 (2001) 62-63.
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1999-1990
-.Fragata, M., Joshi, M. "Molecular aspects of heat stress in photosystem II studied by   variable fluorescence and FT-IR spectroscopy".  Workshop on Recent Advances in Plant Biology from Stress and Oxygen Radicals to Programmed Cell Death and Senescence    (Porto, July 7-9, 1999).
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-.Fragata, M., Menikh, A., Nénonéné, E.K. "Cooperative function of oxygen-evolving units in photosystem 2".  XIIth International Biophysics Congress (Amsterdam, August 11-16,
1996).  Progress in Biophysics and Molecular Biology,  65, suppl. 1 (1996) 145.
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-.Menikh, A, Fragata, M. "FTIR spectroscopic study of the interaction of photosystem II   particles with digalactosyldiacylglycerol".  21st Annual Meeting of the American Society of Photobiology (Chicago, 1993).
-.Menikh, A., Fragata, M. "Salt-mediated interactions between non-ionic lipid bilayers   constituted of digalactosyldiacylglycerol do not lead to fusion".  36th Annual Meeting of the   Canadian Federation of Biological Societies (Windsor, 1993).
-.Ségui, J., Fragata, M. "Effect of ultraviolet radiation on the molecular organization of the  photosystem II complex".  21st Annual Meeting of the American Society of Photobiology  (Chicago, 1993).
-.Ségui, J., Fragata, M. "Etude de l'effet du rayonnement ultraviolet sur l'organisation  moleculaire et le fonctionnement du centre réactionnel photosystem II".  61e Congrès  de l'ACFAS (Rimouski, 1993).
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-.Fragata, M., Nénonéné, E.K. "Structure-function relations in reconstituted photosystem II
  membrane complex probed by FTIR spectroscopy".  5th International Congress on Cell Biology (Madrid, July 26-31, 1992).
-.Menikh, A., Tajmir Rihahi, H.-A., Fragata, M. "FTIR study of the effects of mono- and divalent cations on membranes reconstituted with digalactosyldiacylglycerol".  35th Annual  Meeting of the Canadian Federation of Biological Societies (Victoria, BC, June 18-20, 1992).
-.Bellemare, F., Fragata, M. "Evaluation of the dimerization constants of bilayer vesicles of anionic phospholipids and galactolipids in presence of Ca2+, Mn2+ and Mg2+". 36th Annual Meeting of the Biophysical Society (Houston, TX, 9-13 February, 1992).
-.Fragata, M. "High oxygen evolution in a photosystem II-phosphatidylglycerol complex requires an uncharged membrane surface".  Fourth Winter Conference of the Inter-American Photochemical Society (Clearwater, FL, January 1-5,1992).
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-.Nénonéné, E.K., Fragata, M., Tajmir Rihahi, H.-A. "Lipid-protein interactions in potosystem II studied by FTIR spectroscopy".  Eigth Annual Eastern Regional Photosynthesis Conference (Woods Hole, MA, April 12-14, 1991).
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1989-1980
1979-1970
1969-1960
to be completed later
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Academic Background.|.Positions Held.|.Research Projects.|.Publications.
.Communications.|.Internet Conferences.|.Students.|.Postdoctoral Fellows & Visiting Scientists?
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CONFERENCES
...-2000
- Fragata, M. "Functional cooperativity of photosynthetic pigments and proteins and the light intensity effect of the photosystem II.  Mathematical formulation of bio-electron transfer".  University of Tokyo (Tokyo, Japan, May 28, 2007).

-.Fragata, M., Sridharan, G., Subhan, D. "Molecular control of bio-electron transfer in the macroassemblies of photosynthetic membranes using cyclodextrins".  CSC2004, 87th Canadian Chemistry Conference and Exhibition (London, Ontario, May 29, 2004).
download PDF file (836 K)
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1999-1990
-.Fragata, M., Kajava, A. "Récepteurs de transporteurs [hydrosolubles] d'électrons dans la   membrane photosynthétique:  le cas du cytochrome f".  Symposium "Membranes et Récepteurs", 67e Congrès de l'ACFAS (Ottawa, 12 mai 1999).
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-.Fragata, M. "Modélisation des interactions protéine-protéine dans la membrane thylacoïdale des chloroplastes" Université de Lausanne, Institut Suisse de la Recherche Expérimentale sur le Cancer (ISREC), Bioinformatics Group (Lausanne, Switzerland, June 11, 1997).
-.Fragata, M. "Interactions lipide-protéine et lipide-pigment dans les thylakoïdes".  Symposium    "Photosynthèse:  Phase lumineuse", 65e Congrès de l'ACFAS (Trois-Rivières, 15 mai 1997).
-.Fragata, M. "Les lipides de la membrane photosynthétique ont-ils un rôle fonctionnel, ou tout simplement structural?" Département de chimie-biologie, Université du Québec à Trois-Rivières (Trois-Rivières, 18 avril 1997)
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-.Fragata, M., Gabashvili, I., Maire, V., Mutihac, L. "Interactions lipide-protéine et lipide-pigment dans le photosystème II".  Symposium "Colloque pluridisciplinaire sur les biomembranes", 64e Congrès de l'ACFAS (Montréal, 13-17 mai 1996).
-.Fragata, M., Gabashvili, I., Menikh, A., Ségui, J. "Vibrational modes of the tyrosine ring in the 1620-1570 cm-1 region of photosystem II".  Symposium "Vibrational Spectroscopy",   41st International Conference on Analytical Sciences and Technology (Windsor, Ontario, 14-16 August, 1995).
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-.Fragata, M. "Interactions lipide-protéine dans le photosystème II. Un cas possible de coopérativité structurale et fonctionnelle".  Symposium "Complexes lipide/protéine: organisation et fonctions", 62e Congrès de l'ACFAS (Montréal, 17-18 mai 1994).
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-.Fragata, M. "Spectroscopie FTIR des interactions lipide-lipide et lipide-protéine dans les membranes reconstituées à partir des thylacoïdes des chloroplastes".  Symposium "Les lipides: des modèles aux membranes biologiques",  60e Congrès de l'ACFAS (Montréal, 12 mai 1992).
-.Fragata, M. "Nature of the hydrophobic effect in the formation of biological membranes".   Department of Chemistry, Bosphorus University (Istanbul, Turkey, May 5, 1992).
-.Fragata, M. "Structure-function relations in the photosynthetic membrane studied by FTIR   spectroscopy".  Department of Chemistry, Akdeniz University (Antalya, Turkey, April 30, 1992).
-.Fragata, M. "Polarity of the water-lipid interface and the hydrophobic core of bilayer membranes studied with chemical and fluorescent probes".  Department of Chemistry, Akdeniz University (Antalya, Turkey, April 29, 1992).
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-.Fragata, M. "Linear dichroism of chlorophylls and analogs aligned in liquid crystals and in   polymer films.Molecular orientation effects".  Department of Biophysics, Huygens Laboratorium, State University of Leiden (Leiden, The Netherlands, May 10, 1990).
-.Fragata, M. "Chemical and fluorescent sensors of the polarity of the water-lipid interface and the hydrophobic core region of lipid bilayers and micelles".  Invited speaker in the Interdisciplinary Meeting on Thin Liquid Film Based Biosensors (Düni, Bulgaria, 1-5 October, 1990).
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1989-1980
1979-1970
1969-1960
to be completed later
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Academic Background.|.Positions Held.|.Research Projects.|.Publications.
.Communications.|.Conferences.|.Students.|.Postdoctoral Fellows & Visiting Scientists
?
INTERNET CONFERENCES
2000-1999
-.Fragata, M. "Structural pathways of electron transfer via tunnelling and van der Waals in the cytochrome f-plastocyanin complex".  3rd Internet Conference on Photochemistry and Photobiology (November 24-December 22, 2000).
http://www.photobiology.com/photobiology2000
-.Fragata, M. "Molecular Pathways of Electron Transfer.  Tunnelling Effect and Van der Waals Contacts in the Cytochrome f-Plastocyanin Complex".  XVIII IUPAC Symposium on Photochemistry (July 22-27, 2000).  Virtual Photochemistry Poster Session.  http://www.photobiology.com/photoiupac2000
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-.Ségui, J.A., Maire, V., Gabashvili, I.S., Fragata, M. "Effect of low intensity ultraviolet light (280 nm) on the activity of photosystem II particles".  2nd Internet Conference on Photochemistry and Photobiology (1999).
http://www.photobiology.com/photobiology99, paper no. 7.
 
 
 
 
 
 
 
 
 

 
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Academic Background.|.Positions Held.|.Research Projects.|.Publications.
.Communications.|.Conferences.|.Internet Conferences.|.Postdoctoral Fellows & Visiting Scientists
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STUDENTS (B.Sc., M.Sc., Ph.D.)
- Bekale L
Etudiant d'été (B.Sc., chimie;  UQTR) (2007)
Effect of temperature and light intensity on photosystem II activity. 
FT-IR study of photosystem II.
- Dobrotescu G
Etudiant d'été, projet de fin d'études (B.Sc., biophysique;  UQTR) (2007)
Mathematical formulation of the light intensity effect in photosystem II.
-.Gaudreau S
Etudiant d'été (B.Sc., biochimie;  UQTR) (2000)
Docking characteristics of the extrinsic proteins in photosystem II.
-.Ségui JA
Ph.D. (biophysics) 1992-99
Structure and  function of photosystem II studied with ultraviolet light (220-280 nm)
-.Menikh A
Ph.D. (biophysics) 1991-94
Effect of DGDG and divalent cations in the formation and activity of lipid-protein complexes in photosystem II
-.Nénonéné EK
Ph.D. (biophysics) 1988-92
Effect of PG and mono- and divalent cations in the formation and activity of lipid-protein complexes in photosystem II
Present address: Director, Clinical Neurophysiology Laboratory, Evanston Hospital, Department of Neurology, Evanston, IL 60201, U.S.A.
-.Tazi A
M.Sc. (physics) 1989-91
Organisation of the photosynthetic pigments in the chloroplast thylakoids studied with linear dichroism and polarized fluorescence
-.Bellemare F
M.Sc. (biophysics)
Ph.D. (biophysics)
-.El-Kindi M
M.Sc. (biophysics)
-.L'Heureux G
M.Sc. (biophysics)
Ph.D. (biophysics) 1987-90
Utilisation of fluorescent probes in the characterisation of lipid vesicles.  Application to energy transfer in the membrane
-.Lessard J
M.Sc. (biophysics)
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Academic Background.|.Positions Held.|.Research Projects.|.Publications.
.Communications.|.Conferences.|.Internet Conferences.|.Students
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POST-DOCTORAL FELLOWS AND VISITING SCIENTISTS
-.Viruvuru V
Postdoctoral fellow (2006-2007)
Effect of temperature and light intensity on the photosynthetic activity of isolated photosystem II particles and thylakoid membranes.  Quantum requirement measurements.
-.Dudekula S
Postdoctoral fellow (2002-2004)
Effect of cyclodextrins on the electron transfer and ATP synthesis in the photosynthetic membrane. 
Present address: National Cheng Kung University, Department of Chemistry, Tainan-70101, Taiwan.
-.Alvarez D
Stagiaire (Université de Perpignan, France) (2002)
Etude, à l’aide de spectroscopie infra-rouge par transformée de Fourier, de l’effet des cyclodextrines sur la structure et le fonctionnement de la membrane photosynthétique.
-.Sridharan G 
Postdoctoral fellow (2000-2001)
Effect of cyclodextrins on the function and the structure of the photosynthetic membrane.
Present address: Université du Québec à Trois-Rivières, Département de Chimie-Biologie,  Trois-Rivières, Que, G9A5H7, Canada.
-.Dalstein L
Stagiaire (Université de Perpignan, France) (2000)
Cyclodextrin effects on the function and the structure of the photosynthetic membrane.
-.Huiban C
Stagiaire (Université de Perpignan, France) (2000)
Cyclodextrin effects on the function and the structure of the photosynthetic membrane.
-.Joshi M
Postdoctoral  fellow (1996-1997)
Thermal inactivation of photosystem II studied by FT-IR spectroscopy and variable fluorescence.
Present address: Unilever Research India, Hindustan Lever Research Center, Whitefield, Bangalore
India.
-.Gabashvili IS
Visiting scientist (1995)
FT-IR study of benzene and benzene derivatives.  FT-IR study of the phenolic ring in tyrosine, poly (L-tyrosine) and the tyrosine residues in photosystem II.
Present address: Department of Computer Information Systems, Software and Database Development Programs, Department of Engineering, DeVry University, Fremont, CA, U.S.A.
-.Maire V
Visiting research technician (1995)
FT-IR spectroscopic study of the interaction chlorophyll a-digalactosyldiacylglycerol.  Modellization of molecular interactions in the antennae and reaction center of photosystem II.
Present address: Sorono Company, Neuchâtel, Switzerland.
-.Shubin V
Visiting scientist
Characterization of photosystem I proteins.
-.Strazlka K
Visiting scientist
Lipid-protein interactions in photosystem II.
-.Kalra S
Postdoctoral fellow
Colchicine effect on the microtubules proteins
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