Prof. T. S. Sadasivan

President from 1971 to 1973

Prof. T. S. Sadasivan (1971_-_1973)

Name: SADASIVAN, Toppur Seethapathy
Elected 1945;
Council Service: 1946-49, 1956-76;
President: 1971--73;
Vice-President: 1965-70;
Secretary: 1956-58
Emeritus Prof., Univ. of Madras
Date of birth: 22 May 1913, Madras
Date of death: 18 August 2001

Edn.: Univ. of Madras: BSc. 34; Univ. of Lucknow: MSc. 36; Univ. of London: PhD. 40, DSc. 55. Career: Univ. of Lucknow, Dept. of Botany: Demonstrator 40-41; Fruit and Vegetable Preservation Lab., Lyaupur: Microbiologist 41-44; Univ. of Madras, Centre for Ad-vanced Studies in Botany: Director/Prof. 44-73; CSIR, Plant-based Lab.: Consultant 73-76; Birbal Sahni Professor, Lucknow 77-80; Vidyashram, Kodaikanal: Chairman 82. Fellow, INSA. Sundar Lal Hora Medal 73; Bhatnagar Prize 60; Padma Bhushan 74. Sc. Work in Plant Pathology. Worked on model host-parasite systems and followed up the biochemical changes in the host plants as the disease syndrome progressed. While working on the toxin pyriculol produced by this blast fungus demonstrated permeability changes in the host tissues. Furthermore it was demonstrated for the first time that the toxins of the fungus induced 'green islands' in rice leaf tissues. Work on the cotton wilt problem caused by the soil inhabiting fungus Fusarium vasinfectum led to a better understanding of rhizosphere effect where the role of root exudates in promoting the growth and survival of specific pathogens became well established. First ever demonstration of the fungal toxin fusaric acid in vivo led to designating this toxin as a vivotoxin and was advanced by the group. Put forward definitive evidence of ionic imbalance in wilted plants in the form of excessive excretion and enhanced transpiration resulting in loss of potassium and accumulation of divalent cations. The other host-parasite system studied was the blast disease of rice caused by the air-borne fungus Pyricularia oryzae.

Last known address

"Gokulam". 86/1,
M K Amman Koil Street,
Mylapore, Chennai 600 004.

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      Meeting will be on March 13, 2018
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      Posted on 19 January 2018

      The 29th Mid-year meeting of the Academy will be held from 29–30 June 2018 in Infosys, Mysuru

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      Posted on 19 January 2018

      The 84th Annual meeting of the Academy will be held from 2–4 November 2018 in Banaras Hindu University, Varanasi

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      Posted on 1 January 2018

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    • Upcoming Refresher Courses

      02 to 14 May, 2018
      Ramanujan Institute for Advanced Study in Mathematics, University of Madras

      11 to 25 June, 2018
      Dayanand Science College, Latur (M.S.)

      Experimental Physics
      14 to 29 June, 2018
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    • In remembrance

      Most recent entry 8 January 2018

      The Academy regrets to report the passing of:

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