Allelopathic and auto-toxic effects of aqueous extracts of Codonopsis pilosula root secretions.

ABSTRACT: Water-soluble constituents in the root exudates of C. pilosula exhibit both allelopathic and auto-toxic properties, which substantially impede its growth. To mitigate the constraints associated with the continuous cropping of C. pilosula, this study examined the impact of aqueous extracts from the root exudates at various developmental stages on seed germination and seedling growth. Additionally, we isolated and characterized significant auto-toxic allelochemicals. Our findings revealed that the inhibitory effects on seed germination, seedling growth, and the activity of antioxidant enzymes-collectively referred to as a comprehensive effect-intensified progressively with increasing concentrations of the aqueous extracts from C. pilosula root exudates. The most pronounced auto-toxic compreh

SUBMITTER: Qiu D 

PROVIDER: S-EPMC11785337 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature