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Three New Species and Five New Host Records from Chaetomiaceae with Anti-Phytopathogenic Potential from Cover Crops Astragalus sinicus and Vicia villosa

文献类型： 外文期刊

作者： Qian, Ning 1 ; Wu, Yuhong 1 ; Zhang, Wei 2 ; Yang, Jun 1 ; Bhadauria, Vijai 3 ; Zhang, Guozhen 3 ; Yan, Jiye 2 ; Zhao, Wensheng 1 ;

作者机构： 1.China Agr Univ, Dept Plant Biosecur, MARA Key Lab Surveillance & Management Plant Quara, MARA, Beijing 100193, Peoples R China

2.Beijing Acad Agr & Forestry Sci, Inst Plant Protect, Beijing Key Lab Environm Friendly Management Fruit, Beijing 100097, Peoples R China

3.China Agr Univ, Dept Plant Pathol, MARA Key Lab Pest Monitoring & Green Management, Beijing 100193, Peoples R China

关键词： anti-phytopathogenic potential; Chaetomiaceae; multigene phylogeny; morphological characteristics; new taxa

期刊名称：JOURNAL OF FUNGI （ 影响因子：4.0； 五年影响因子：4.5 ）

ISSN：

年卷期： 2024 年 10 卷 11 期

页码：

收录情况： SCI

摘要： Cover crops, typically planted during off-seasons and requiring less agronomic manipulation, may provide abundant fungal resources. Certain species of Chaetomiaceae could serve as potential agents for controlling plant diseases and developing bioorganic fertilizers. Eight species from five genera of Chaetomiaceae were identified from healthy Astragalus sinicus and Vicia villosa, two major cover crops, through multigene phylogenetic analysis, morphological identification, and pairwise homoplasy index testing. The identified species comprise three new species: Achaetomium astragali, Subramaniula henanensis, and S. sichuanensis, as well as five known but new host record species: Botryotrichum murorum, Chaetomium coarctatum, C. pseudocochliodes, C. pseudoglobosum, and Collariella pachypodioides. Dual culture tests revealed that isolates of all eight Chaetomiaceae species exhibited antagonistic effects on multiple phytopathogens. Among the identified fungi, the NSJA2 isolate, belonging to C. coarctatum, exhibited significant relative inhibition effects on 14 out of 15 phytopathogens tested in this study, indicating its broad-spectrum antagonistic effects. Additionally, NSJA2 exhibited excellent salt tolerance. Overall, our study has identified multiple fungi with anti-phytopathogens potential, among which NSJA2 exhibits high potential for practical application. This finding paves the way for further exploration and exploitation of NSJA2 as a promising biocontrol agent.

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