Antimicrobial activity of Bacillus paralicheniformis SUBG0010 against plant pathogenic bacteria of mango

Abstract

Biocontrol using safe microorganisms is one of the best alternatives to hazardous and ecologically harmful chemical pesticides. In the present work, Bacillus paralicheniformis SUBG0010 was isolated from the rhizosphere of grass from the desert of India, as a potential antimicrobial producing strain. It was tested against six bacterial pathogens of mango. Four pathogens were strongly inhibited by the supernatant of the strain SUBG0010 after 48 h growth, revealed by co-culture and agar well diffusion methods. Antimicrobial protein isolated from the culture free supernatant is thermos table and proved to be a potential antimicrobial substance. The role of B. paralicheniformis SUBG0010 as a potential biocontrol agent against mango pathogens is discussed.