Diversity of Trichoderma species associated with soil in the Zoige alpine wetland of Southwest China
文献类型： 外文期刊
作者： Tang, Gui-Ting 1 ; Li, Ying 1 ; Zhou, You 3 ; Zhu, Yu-Hang 1 ; Zheng, Xiao-Juan 1 ; Chang, Xiao-Li 1 ; Zhang, Shi-Rong 4 ; Gong, Guo-Shu 1 ;
作者机构： 1.Sichuan Agr Univ, Coll Agron, Chengdu 611130, Peoples R China
2.Southeast Chongqing Acad Agr Sci, Fuling 408099, Peoples R China
3.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Haikou 571101, Peoples R China
4.Sichuan Agr Univ, Coll Environm, Chengdu 611130, Peoples R China
期刊名称：SCIENTIFIC REPORTS （ 影响因子：4.6； 五年影响因子：4.9 ）
ISSN： 2045-2322
年卷期： 2022 年 12 卷 1 期
页码：
收录情况： SCI
摘要： The ecology of soil fungi is poorly understood, and recent comprehensive reports on Trichoderma are unavailable for any region, including the Zoige alpine wetland ecological region in China. One hundred soil samples were collected from different soil types and soil layers in Zoige alpine wetland ecological regions. Using the traditional suspension plating method, 80 Trichoderma strains were chosen to analyze species diversity. After a preliminary classification of morphological characteristics and the genes glyceraldehyde-3-phosphate dehydrogenase (gpd), 57 representative strains were selected and eventually identified as seven species via phylogenetic analyses of multilocus sequences based on the genes transcription elongation factor 1 alpha (tef1), encoding RNA polymerase II subunit B (rpb2) and ATP citrate lyase (acl1). Among them, T. harzianum was the dominant species isolated from five soil layers and four soil types, and had the highest isolation frequency (23%) in this zone, while T. polysporum and T. pyramidale were rare species, with isolation frequencies of less than 1%. Our detailed morphological observation and molecular phylogenetic analyses support the recognition of Trichoderma zoigense was described for the first time as a new species, while T. atrobrunneum as a new record for China was found. Our results will be used as a reference for a greater understanding of soil microbial resources, ecological rehabilitation and reconstructions in the Zoige alpine wetland.
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