Analyses of 37 composts revealed microbial taxa associated with disease suppressiveness.

ABSTRACT: Compost is a valuable amendment for soil and potting substrate when it comes to suppressing soilborne pathogens. However, the effectiveness of different composts varies and cannot yet be predicted. Microbial communities in compost play a key role in disease suppression, and therefore their composition or specific taxa may serve as indicators of suppressive composts. In this study, we investigated 37 composts from 7 commercial compost producers to analyze the association of their bacterial and fungal communities with suppressive activity in three plant-pathogen systems: cress-Globisporangium ultimum, cucumber-G. ultimum, and cucumber-Rhizoctonia solani. Our results underscore that compost suppressiveness is primarily pathogen-specific and, to a lesser extent, hos

SUBMITTER: Logo A 

PROVIDER: S-EPMC12628690 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature