茄丝核菌
索拉尼镰刀菌
根腐病
生物
真菌
接种
镰刀菌
病原真菌
园艺
微生物学
植物
作者
Jin-Xian Fu,Jiao Jiao,Qing‐Yan Gai,Jie Gao,Xiaoqing Wang,Ziyi Zhang,Jing He,Ming Wen,Yujie Fu
标识
DOI:10.1021/acs.jafc.4c09886
摘要
Rhizoctonia solani root rot is a devastating fungal disease that causes significant yield losses in legume crops. A novel endophytic fungus Fusarium falciforme R-423 isolated from pigeon pea had a significant antagonistic capacity against R. solani. F. falciforme R-423 extracts could inhibit R. solani growth and cause it to die. Four host-specific and 15 genus-specific metabolites were identified as potential antimicrobial compounds. F. falciforme R-423's inoculation effectively controlled R. solani root rot in pigeon pea seedlings and promoted root growth. Co-inoculation of F. falciforme R-423 and R. solani reduced the levels of oxidative stress, pathogenesis- and biosynthesis-related gene expression, and phenolic compound accumulation in roots compared to those infected with R. solani, confirming that reactive oxygen species-mediated host defense responses were alleviated due to the effective control of R. solani by F. falciforme R-423. Overall, F. falciforme R-423 was a promising biocontrol agent against R. solani root rot in legume crops.
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