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Issue: Vol. 708 No. 3: 8 Jul. 2025
Type: Article
Published: 2025-07-08
DOI: 10.11646/phytotaxa.708.3.5
Page range: 287-295
Abstract views: 255
PDF downloaded: 9

Pyrenochaetopsis huizeanum sp. nov. (Pyrenochaetopsidaceae, Pleosporales) from rocky desertification soil in Yunnan Province

Guiyang Healthcare Vocational University, Guiyang 550000, China
Laboratory for Conservation and Utilization of Bio-Resources, Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming 650091, Yunnan, People’s Republic of China; School of Life Sciences, Yunnan University, Kunming, Yunnan Province, China
Laboratory for Conservation and Utilization of Bio-Resources, Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming 650091, Yunnan, People’s Republic of China; School of Life Sciences, Yunnan University, Kunming, Yunnan Province, China
School of Life Sciences, Yunnan University, Kunming, Yunnan Province, China
Laboratory for Conservation and Utilization of Bio-Resources, Key Laboratory for Microbial Resources of the Ministry of Education, Yunnan University, Kunming 650091, Yunnan, People’s Republic of China
a new species morphology phylogeny taxonomy Fungi

Abstract

During a survey of soil fungi in rocky desertification regions of Yunnan Province, China, a novel species, Pyrenochaetopsis huizeanum, was isolated from nutrient-poor soils. Phylogenetic analyses using combined ITS, LSU, rpb2 and tub2 gene sequences clearly positioned the new species within the genus Pyrenochaetopsis. The novel taxon formed a distinct monophyletic lineage closely related to a group of six known species viz. P. kuksensis, P. musae, P. oryzicola, P. paucisetosa, P. botulispora and P. tabarestanensis. Morphologically, Pyrenochaetopsis huizeanum differs from P. musae, P. oryzicola and P. botulispora in having setae and larger pycnidia, from P. paucisetosa by having narrower conidia, from P. kuksensis by producing larger conidia, and from P. tabarestanensis by lacking chlamydospore. Here, we provide a detailed description, illustrations, and phylogenetic placement of the newly proposed species, Pyrenochaetopsis huizeanum.

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How to Cite

Chen, L.-P., Duan, Z.-W., Zhagn, X.-K., Zhan, Y.-C. & Yu, Z.-F. (2025) Pyrenochaetopsis huizeanum sp. nov. (Pyrenochaetopsidaceae, Pleosporales) from rocky desertification soil in Yunnan Province. Phytotaxa 708 (3): 287–295. https://doi.org/10.11646/phytotaxa.708.3.5