Three New Trichoderma Species in Harzianum Clade Associated with the Contaminated Substrates of Edible Fungi
文献类型： 外文期刊
作者： Cao, Zi-Jian 1 ; Qin, Wen-Tao 2 ; Zhao, Juan 2 ; Liu, Yu 2 ; Wang, Shou-Xian 2 ; Zheng, Su-Yue 1 ;
作者机构： 1.Hebei Univ Engn, Sch Landscape & Ecol Engn, Handan 056038, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Inst Plant Protect, Beijing 100097, Peoples R China
关键词： Hypocreaceae; Trichoderma; phylogeny; morphology; taxonomy
期刊名称：JOURNAL OF FUNGI （ 影响因子：5.724； 五年影响因子：6.413 ）
ISSN：
年卷期： 2022 年 8 卷 11 期
页码：
收录情况： SCI
摘要： Trichoderma is known worldwide as biocontrol agents of plant diseases, producers of enzymes and antibiotics, and competitive contaminants of edible fungi. In this investigation of contaminated substrates of edible fungi from North China, 39 strains belonging to 10 Trichoderma species isolated from four kinds of edible fungi were obtained, and three novel species belonging to the Harzianum clade were isolated from the contaminated substrates of Auricularia heimuer and Pholiota adipose. They were recognized based on integrated studies of phenotypic features, culture characteristics, and molecular analyses of RNA polymerase II subunit B and translation elongation factor 1-alpha genes. Trichoderma auriculariae was strongly supported as a separate lineage and differed from T. vermifimicola due to its larger conidia. Trichoderma miyunense was closely related to T. ganodermatigerum but differed due to its smaller conidia and higher optimum mycelial growth temperature. As a separate lineage, T. pholiotae was distinct from T. guizhouense and T. pseudoasiaticum due to its higher optimum mycelial growth temperature and larger conidia. This study extends the understanding of Trichoderma spp. contaminating substrates of edible fungi and updates knowledge of species diversity in the group.
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