IN VITRO STUDY OF ANTAGONISTIC POTENTIAL OF SOME FUNGI AND BACTERIA AGAINST FUSARIUM MONILIFORME VAR. SUBGLUTINANS, CAUSAL ORGANISM OF MANGO PANICLE MALFORMATION

S.K. Ghosh, S.K. Ray, M.A. Hasan
Five isolates of Trichoderma viride, two isolates of Beauveria bassiana, one isolate of Bacillus subtilis and Pseudomonas sp. were screened against Fusarium moniliforme var. subglutinans for their antagonistic potentiality by dual culture plate method. Three isolates of T. viride and one isolate of B. bassiana were class-1 antagonists. Among the class-1 antagonists, T10 isolate of T. viride showed best hyperparasitic activity. Both B. subtilis and Pseudomonas sp. strongly inhibited the growth of mycelium and spore germination of the pathogen. The non-volatile metabolites of B. subtilis and Pseudomonas sp. exhibited 72 and 79.50% of inhibition of radial growth, respectively and 82 and 95% of inhibition of growth (dry weight), respectively. Non-volatile metabolites of both bacteria also inhibited spore germination. Volatile metabolites of both bacteria were tested against both radial growth and spore germination of the pathogen and they inhibited them. Therefore, this in vitro study strongly suggested that T. viride, B. subtilis and Pseudomonas sp. can be applied in field trial (in vivo) as effective biocontrol agents, against panicle malformation (F. moniliforme var. subglutinans) of mango.
Ghosh, S.K., Ray, S.K. and Hasan, M.A. (2014). IN VITRO STUDY OF ANTAGONISTIC POTENTIAL OF SOME FUNGI AND BACTERIA AGAINST FUSARIUM MONILIFORME VAR. SUBGLUTINANS, CAUSAL ORGANISM OF MANGO PANICLE MALFORMATION. Acta Hortic. 1024, 287-294
DOI: 10.17660/ActaHortic.2014.1024.39
https://doi.org/10.17660/ActaHortic.2014.1024.39
bio-control, Trichoderma viride, Beauveria bassiana, Bacillus subtilis, antagonists, hyperparasitic activity
English

Acta Horticulturae