Wang Haixuan, Zhao Huizhang, Zhu Zihang, Lin Yang, Xie Jiatao, Cheng Jiasen, Jiang Daohong, Fu Yanping
The Provincial Key Lab of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
Industrial Crops Institute, Hubei Academy of Agricultural Sciences, Wuhan 430064, China.
Int J Mol Sci. 2025 Sep 6;26(17):8706. doi: 10.3390/ijms26178706.
, a devastating phytopathogenic fungus with global distribution, exhibits a broad host range encompassing over 700 plant species. Sclerotinia stem rot caused by this pathogen poses a significant threat to sustainable oilseed rape production. , a mycoparasite of , is a promising biological control agent against this devastating disease. -based formulations have been commercially developed for field application. A transcriptomic analysis revealed significant upregulation of the chitinase-encoding gene in during interaction with Knockout of either or another chitinase-encoding gene in did not markedly affect the mycelial growth, development, and parasitism of . However, knockout and simultaneously resulted in reduced growth rate, impaired protoplast release, enhanced cell wall integrity, and diminished mycoparasitic capability. These results indicate that and collectively influence remodeling of the cell wall in and its mycoparasitic activity.
，一种分布于全球的毁灭性植物病原真菌，具有广泛的寄主范围，涵盖700多种植物。由这种病原体引起的菌核病对可持续油菜籽生产构成重大威胁。，的一种真菌寄生物，是对抗这种毁灭性疾病的一种有前景的生物防治剂。基于的制剂已商业化开发用于田间应用。转录组分析显示，在与相互作用期间，编码几丁质酶的基因在中显著上调。敲除中的或另一个编码几丁质酶的基因均未显著影响的菌丝生长、发育和寄生作用。然而，同时敲除和导致生长速率降低、原生质体释放受损、细胞壁完整性增强以及真菌寄生能力减弱。这些结果表明，和共同影响中细胞壁的重塑及其真菌寄生活性。
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