Antagonistic Activities of Triehoderma harzianum Against Pythium aphanidermatum and Pythium myriotylum on Tobacco

Devaki, N. S. and Shankara Bhat, S. and Bhat, S. G. (1992) Antagonistic Activities of Triehoderma harzianum Against Pythium aphanidermatum and Pythium myriotylum on Tobacco. Journal of Phytopathology, 136. 82-87 .

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Abstract

Triehoderma harzianum rendered Pythium aphanidermatum and P. myriotylum non-viable in Petri dish dual culture. The Pythium mycelia from such cultures showed natural autofluorescence in the regions of interactions, indicating their death. Non-volatile and volatile fungicidal activities were detected in T. harzianum culture. LytJc activity of /6-(l,3)-glucanase was detected on the cell walls of the Pythium spp. There was a significant decrease in the disease incidence when T. harzianum was incorporated into sterile soil, whereas the effect was insignificant in natural soil.

Item Type:	Article
Uncontrolled Keywords:	antagonistic activities, T. harzianum, P. aphanidermatum, P. myriotylum, tobacco
Subjects:	600 Technology > 03 Agriculture > 05 Insect/Pest Control
Divisions:	Dept. of Biochemistry
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	28 Sep 2010 04:50
Last Modified:	28 Dec 2011 10:18
URI:	http://ir.cftri.res.in/id/eprint/9720

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