Diverse mechanisms adopted by fluorescent Pseudomonas PGC2 during the inhibition of Rhizoctonia solani and Phytophthora capsici
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Rhizoctonia solani and Phytophthora capsici are two of the most destructive phytopathogens occurring worldwide and are only partly being managed by traditional control strategies. Fluorescent Pseudomonas isolates PGC1 and PGC2 were checked for the antifungal potential against R. solani and P. capsici. Both the isolates were screened for the ability to produce a range of antifungal compounds. The results of this study indicated the role of chitinase and β-1,3-glucanase in the inhibition of R. solani, however, antifungal metabolites of a non-enzymatic nature were responsible for inhibition of P. capsici. The study confirmed that multiple and diverse mechanisms are adopted by the same antagonist to suppress different phytopathogens, as evidenced in case of R. solani and P. capsici.
KeywordsBiocontrol Chitinase Fluorescent Pseudomonas Phytophthora capsici Rhizoctonia solani β-1,3-Glucanase
International collaboration and exchange programme between INSA- KOSEF under which the work was carried out is gratefully acknowledged. Thanks are due to Department of Science and Technology, New Delhi and the Vice-Chancellor, CSJM University Kanpur, for providing financial assistance and facilities, respectively.
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