Dual Benefits of Endophytic <i>Bacillus velezensis</i> Amzn015: Growth Promotion and Root Rot Control in <i>Atractylodes macrocephala</i>.

ABSTRACT: Atractylodes macrocephala Koidz. (A. macrocephala), a medicinal plant extensively used in traditional Chinese medicine, is greatly susceptible to root rot under continuous monoculture, leading to serious yield and quality losses. To develop a sustainable control strategy, we isolated the endophytic bacterium Bacillus velezensis (B. velezensis) Amzn015 from healthy A. macrocephala plants and assessed its biocontrol efficacy and underlying mechanisms. In vitro assays showed that Amzn015 significantly inhibited Fusarium oxysporum and other phytopathogenic fungi by disrupting hyphal morphology and reducing spore viability. Pot experiments confirmed its effectiveness in reducing disease incidence and promoting plant growth. Mechanistically, Amzn015 indu

SUBMITTER: Zhu N 

PROVIDER: S-EPMC12566287 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature