Dual benefits of <i>Lysinibacillus xylanilyticus</i> strain GIC41 in mitigating Pythium root rot and enhancing plant growth across cultivation systems.

ABSTRACT: The Lysinibacillus xylanilyticus strain GIC41 has been previously reported to promote spinach growth. This study evaluated GIC41's potential as a biostimulant by assessing its ability to mitigate Pythium root rot and enhance plant growth across various cultivation systems. In a pot experiment, GIC41 application to potting soil reduced the disease severity index (DSI) by approximately 52% in spinach seedlings 15 days post-pathogen inoculation (dpi). Similarly, introducing GIC41 into hydroponic nutrient solutions decreased the DSI in tomato seedlings from 61% to 15% at 14 dpi. Reisolation experiments and quantitative real-time PCR analysis confirmed that GIC41 significantly suppressed root colonization by Pythium aphanidermatum in both spinach and tomato seedlings. Microscopic

SUBMITTER: Ahsan N 

PROVIDER: S-EPMC12573614 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature