Water-soluble exudates from seeds of Kochia scoparia exhibit antifungal activity against Colletotrichum graminicola.

ABSTRACT: Plant seed exudates are composed of complex mixtures of chemicals with potential for bioactive compounds with antimicrobial properties. This study focused on kochia (Kochia scoparia), one of many weedy plant species considered invasive in many agricultural systems. Extraction of compounds in water yielded an exudate mass equivalent to 7% of the original seed mass used. Water-soluble exudates were tested against 16 known plant pathogens in disk diffusion assays and kochia exudates were found to inhibit Colletotrichum graminicola, the fungal causative agent of anthracnose and stalk rot in maize. The narrow range of fungi found as targets suggested the mechanism of inhibition may be specific rather than broadly antifungal. A decline in viability of cells over four orders of magnitude occurred

SUBMITTER: Houlihan AJ 

PROVIDER: S-EPMC6584005 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature