Characterization and Antifungal Activity from Soilborne Streptomyces sp. AM50 towards Major Plant Pathogens

Abstract

BACKGROUND:Chemical fungicides not only may pollute the ecosystem but also can be environmentally hazardous, as the chemicals accumulate in soil. Biological control is a frequently-used environment-friendly alternative to chemical pesticides in phytopathogen management. However, the use of microbial products as fungicides has limitations. This study isolated and characterized a three-antifungal-enzyme (chitinase, cellulase, and β-1,3-glucanase)-producing bacterium, and examined the conditions required to optimize the production of the antifungal enzymes. METHOD AND RESULTS:The antifungal enzymes

Effectiveness of Bacillus pumilus PDSLzg-1, an innovative Hydrocarbon-Degrading Bacterium conferring antifungal and plant growth-promoting function

“…lipopeptide antibiotics) that inhibit the growth of certain fungi (Das et al 2015). In contrast, various oligosaccharide enzymes, pectinases, cellulases, or chitinases secreted by PDSLzg-1 not only consume plant root exudates as a carbon source, but can also play an antibacterial role (Table S1) (De Boer et al 1998;Cantarel et al 2008;Jang et al 2011;Gurav et al 2017;Mefteh et al 2017). A symbiotic relationship might exist between PDSLzg-1 and plants.…”