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Three New Species of Hypoxylon (Xylariales, Ascomycota) on a Multigene Phylogeny from Medog in Southwest China

文献类型: 外文期刊

作者: Song, Zi-Kun 1 ; Zhu, An-Hong 3 ; Liu, Zhen-Dong 4 ; Qu, Zhi 1 ; Li, Yu 2 ; Ma, Hai-Xia 1 ;

作者机构: 1.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Haikou 571101, Hainan, Peoples R China

2.Jilin Agr Univ, Coll Plant Protect, Changchun 130118, Peoples R China

3.Chinese Acad Trop Agr Sci, Haikou 571101, Hainan, Peoples R China

4.Tibet Agr & Anim Husb Univ, Food Sci Coll, Nyingchi 860000, Peoples R China

5.Hainan Inst Trop Agr Resources, Haikou 571101, Hainan, Peoples R China

6.Hainan Key Lab Trop Microbe Resources, Haikou 571101, Hainan, Peoples R China

关键词: Ascomycota; Hypoxylon; multigene phylogeny; taxonomy; wood-decomposing fungi; Xylariales

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 5 期

页码:

收录情况: SCI

摘要: During a survey of hypoxylaceous fungi in Medog county (Tibet Autonomous Region, China), three new species, including Hypoxylon damuense, Hypoxylon medogense, and Hypoxylon zangii, were described and illustrated based on morphological and multi-gene phylogenetic analyses. Hypoxylon damuense is characterized by its yellow-brown stromatal granules, light-brown to brown ascospores, and frequently indehiscent perispore. Hypoxylon medogense is morphologically and phylogenetically related to H. erythrostroma but differs in having larger ascospores with straight spore-length germ slit and conspicuously coil-like perispore ornamentation. Hypoxylon zangii shows morphological similarities to H. texense but differs in having Amber (47), Fulvous (43) and Sienna (8) KOH-extractable pigments and larger ascospores with straight spore-length germ slit. The multi-gene phylogenetic analyses inferred from the datasets of ITS-RPB2-LSU-TUB2 supported the three new taxa as separate lineages within Hypoxylon. A key to all known Hypoxylon species from China and related species worldwide is provided.

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