文献类型： 外文期刊
作者： Wang, Yating 1 ; Wang, Ying 2 ; Li, Bing 2 ; Shao, Youran 2 ; Chen, Hongyu 2 ; Gong, Ming 2 ; Zhang, Ruijing 2 ; Liu, Yu 2 ; Chen, Wenjing 2 ; Li, Nanyi 1 ; Zou, Gen 2 ;
作者机构： 1.Zhejiang A&F Univ, Coll Hort Sci, Hangzhou 311300, Peoples R China
2.Shanghai Acad Agr Sci, Natl Engn Res Ctr Edible Fungi, Inst Edible Fungi, Key Lab Appl Mycol Resources & Utilizat,Minist Agr, Shanghai 201403, Peoples R China
关键词： Cordyceps militaris; Autophagy; Fruiting body; Pathogenicity; Secondary metabolism
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.5； 五年影响因子：8.7 ）
ISSN： 0141-8130
年卷期： 2025 年 311 卷
页码：
收录情况： SCI
摘要： Autophagy is a general eukaryotic mechanism for the degradation and recycling of macromolecules and organelles, whereby the ATG1-kinase complex plays a crucial initiator role. To understand the role of autophagyrelated genes in the growth and development of the entomopathogenic parasitoid fungus Cordyceps militaris, we constructed Delta CmATG1 and Delta CmATG13 knockout strains. Compared with the wild type, both knockout strains exhibited severe defects in terms of hyphal morphology, fruiting body formation, conidial production and germination rates, pathogenicity, as well as growth rates under nutritional stress. Moreover, the content of cordycepin, ergosterol, and the levels of phospholipids all exhibited significant decreases, indicating that both Delta CmATG1 and Delta CmATG13 impaired autophagy in the respective knockout strains. Comparative transcriptomic analysis of the wild type and Delta CmATG1 revealed that differentially expressed genes were mainly enriched in phosphoglyceride metabolism, the MAPK signaling pathway, and autophagy-related processes. Taken together, these results demonstrate that the ATG1-kinase complex plays a crucial role in the development of fruiting bodies in C. militaris. This study lays a foundation for further analysis of the molecular mechanisms underlying the role of autophagy in the formation of macrofungal fruiting bodies.
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