Antifungal Activity of Some Lactic Acid Bacteria against to Several Soil-borne Fungal Pathogens Isolated from Strawberry Plants

Abstract

Developing alternative control methods such as using beneficial microorganisms and their metabolites to control the plant diseases has gained so much importance along recent years and research on this area are increasing day by day. In this study the possibilities of using microorganisms which have antimicrobial effects on controlling soil-borne fungi at strawberry production were investigated. Effects of different lactic acid bacteria (LAB) strains were studied in vitro and in vivo against the development of several soil-borne fungi. LAB were screened for antifungal activity by using cell free supernatant against Fusarium sp., Rhizoctonia sp., Macrophomina sp., Botrytis sp., Phtopythium sp., Cylindrocarpon sp. and Pestalotiopsis sp. Cell free supernatant of LAB isolates showed antifungal activity against fungi. In vitro effective strains of LAB were used in pot experiments to search their effects on fungal development and the development of the plant. While the antifungal effects of all LAB strains tested in vitro experiments exhibited promising results, in vivo experiments revealed similar effects on different fungi genera.

Keywords

• Lactic acid bacteria
• bacteriocin like substance
• biological management
• soil-borne pathogens
• strawberry