135:, a plant, that has proved to be of great significance in modern Molecular Biology of plants. Working with the components of mutants of the tobacco mosaic virus (TMV) he analysed the behaviour of their coat proteins. These findings were the first experimental proof of the "trimer" character of this virus protein (Sarkar, 1960; Caspar, 1963). From a mutant of TMV with a defective coat protein he isolated a rare mutant, which had no coat protein but only the free nucleic acid (RNA). (Ref. 1981). The presence of this free RNA prevented the spread of other related TMV mutants, offering an early experimental proof of the phenomenon, later known as "Gene Silencing". Cellwall-free protoplasts of plant cells (mainly of tobacco and Chinese cabbage) were infected with viruses or with their RNA with a high efficiency and used for physiological investigations. Synergism between potato virus x and potato virus y was studied in vivo by classical methods as well as by ultrastructural, i.e. electronmicroscopic techniques.
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Sarkar, S.: Interaction and mixed aggregation of proteins from tobacco mosaic virus strains. Zeitschr. Naturforschung. 15b,778–786, 1960 (See also Caspar, D.L.D.: Assembly and stability of the tobacco mosaic virus particle. Adv. in
Protein Chemistry 18, 37–121,
82:(Master of Science, 1950). He worked on tissue culture of plants and the application of radioisotopes in biological research at the Bose Institute, Calcutta. From 1954 he was engaged in research at the
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Sarkar, S.: Tobacco mosaic virus: Mutants and strains. In THE PLANT VIRUSES (M.H.V.van
Regenmortel and H. Fraenkel-Conrat eds.) Vol.2, 59–77, Plenum Publ. Corp., New York & London, 1986
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Matthews, R.E.F. & Sarkar, S.: A light-induced structural change in chloroplasts of
Chinese cabbage cells infected with turnip yellow mosaic virus. Jour. Gen. Virol. 33, 435–446, 1976
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Sarkar, S.: (translator). Die Sonne des Tages. Poems of
Rabindranath Tagore. About one hundred poems translated from Bengali to German. Knirsch-Verlag Kirchentellinsfurt, Germany. 2012.
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Sarkar, S. & Smitamana, P.: A proteinless mutant of tobacco mosaic virus: Evidence against the role of a viral coat protein for interference. Molec. Gen. Genetics 184, 158–159, 1981
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Sarkar was trained in the use of isotopes in
Biology at the Nuclear Research Center in Karlsruhe (Germany 1961), in studies on Genetics of Bacteriophages in the Department of Genetics,
46:), was a scientist, investigating physiological phenomena in plants and then studying the structure and function of plant-pathogenic viruses in the Max-Planck-Institute for Biology in
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Osbourn, J.K., Sarkar, S. & Wilson, T.M.A.: Complementation of coat protein-defective mutants in transgenic tobacco plants expressing TMV coat protein. Virology 179, 921–925, 1990
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Mayee, C.D. & Sarkar, S.: The ultrastructure of
Nicotiana tabacum cells infected with potato virus X and potato virus Y. Jour. Ultrastructure Res. 81, 124–131, 1982
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Sarkar, S. & Schilde-Rentschler, L.: Interaction of TMV proteins during electrophoretic separation in polyacrylamide gels. Molec. Gen. Genetics 103, 244–247, 1968
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Gerber, M. & Sarkar, S.: The coat protein of tobacco mosaic virus does not play a significant role for cross-protection. Jour. Phytopathol. 124, 323–331, 1989
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Sarkar, S.: Use of protoplasts for plant virus studies. In METHODS IN VIROLOGY (Maramorosch and
Koprowski eds.) Vol.6, 435–456, Academic Press, New York, 1977
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Blessing, J. & Sarkar, S.: Isolierung und morphologische
Charakterisierung des Kartoffelblattrollvirus (PLRV). Zeirschr. Naturforschung 36c,884–887, 1981
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Sarkar, S.: Assay of infectivity of nucleic acids. In METHODS IN VIROLOGY (Maramorosch and
Koprowski eds.) Vol. 2, 607–644, Academic Press, New York, 1967
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Dutt, M., Sarkar, S. & Dutta, C.T.: Physiological studies on diploid and polyploid varieties of banana. Science and
Culture 16, 215,1950
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Sarkar, S.: A simple cage for a controlled transmission of plant viruses by aphids. Zeitschr. Pfl.-Krankh. U. Pfl.-schutz 89,612–615,1982
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His studies on the physiological background of the mechanism of flowering of higher plants revealed some interaction between the role of
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119:(1962) and in the structure of ribosomes at an EMBO workshop held in the Max-Planck-Institute for Molecular genetics in Berlin (1970).
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Sarkar, S.& Smitamana, P.: A truly coat-protein-free mutant of tobacco mosaic virus. Naturwissenschaften 68, 145–147, 1981
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131:(mainly cold treatment) and the direct effect of the plant hormone Gibberellic acid. He used, among others, two lines of
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Sarkar passed his Matriculation from the Uttarpara Government High School (1944), studied at Ripon College (now known as
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and obtained his "Habilitation" from the University of TĂĽbingen in 1969. After Habilitation he gave lessons in
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in TĂĽbingen (Departement Georg Melchers) and obtained his Doctorate from the University of TĂĽbingen (1957).
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Sarkar, S.: Relative infectivity of tobacco mosaic virus and its nucleic acid. Virology 20,185–193,1963
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Satyabrata Sarkar: German Prabesika (German learner). Ananda Publishers Private Ltd., Calcutta, 2011.
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Satyabrata Sarkar: Ich lerne Bengalisch, Teil 1. Verlag Grauer; Beuren, Stuttgart, 2002.
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Sarkar, S.: Versuche zur Physiologie der Vernalisation. Biol. Zentralblatt 77, 1–49,1958
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From 1959 he started with intensive studies on the structure and function of
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78:), Presidency College Calcutta (Bachelor of Science, 1948) and at the
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Research couple Ursula and Satyabrata Sarkar in TĂĽbingen Germany 1957
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From 1977 to 1995 he was engaged in teaching and research at the
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Die akademischen Lehrer an der Universität Hohenheim 1968–2005.
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Departement Phytomedizin at the University of Hohenheim
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near Stuttgart. After retirement he started teaching
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Scripta-Mercaturae-Verlag, Stuttgart 2008, S. 136f.
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Departement Indologie at the University of TĂĽbingen
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54:in Germany. Later on (since 1999) he was teaching
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283:in: Ulrich Fellmeth, Kathrin Quast (Bearb.):
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112:(since 1999) at the University of TĂĽbingen.
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66:. On 11 December 2022 he died aged 94.
317:"Detailansicht: Universität Hohenheim"
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58:and literature in the Department of
145:Indian Science Congress Association
159:Deutsche Virologische Gesellschaft
153:Indian Virological Society, fellow
139:Membership of scientific societies
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84:Max Planck Institute for Biology
31:Prof. Dr. Satyabrata Sarkar 2011
38:, (born 1928 in Uttarpara near
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381:University of Calcutta alumni
366:20th-century Indian botanists
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315:Hohenheim, Universität.
386:Scientists from Kolkata
123:Scientific achievements
106:University of Hohenheim
52:University of Hohenheim
80:University of Calcutta
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321:www.uni-hohenheim.de
133:Arabidopsis thaliana
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169:Scientific papers
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281:Satyabrata Sarkar
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327:12 December
323:(in German)
50:and at the
360:Categories
268:References
99:Genetics
95:Virology
60:Indology
48:TĂĽbingen
40:Calcutta
110:Bengali
62:of the
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