文献类型：期刊文献

英文题名：Three lignicolous freshwater fungi of Neohelicomyces (Tubeufiales, Tubeufiaceae) from Guizhou Province, China

作者：Zhang, Li-Juan Liu, Hong-Xiu Xiao, Xing-Juan Liu, Xiang-Fu Liu, Ning-Guo Lu, Yong-Zhong

第一作者：张丽娟;Zhang, Li-Juan

通信作者：Lu, YZ[1];Lu, YZ[2]

机构：[1]Guizhou Inst Technol, Sch Food & Pharmaceut Engn, Guiyang 550025, Peoples R China;[2]Guizhou Acad Agr Sci, Guizhou Key Lab Agr Microbiol, Guiyang 550009, Peoples R China;[3]Mae Fah Luang Univ, Ctr Excellence Fungal Res, Chiang Rai 57100, Thailand;[4]Mae Fah Luang Univ, Sch Sci, Chiang Rai 57100, Thailand;[5]Southwest Forestry Univ, Modern Ind Sch Edible Fungi, Kunming 650224, Peoples R China;[6]Southwest Forestry Univ, Coll Biol Sci & Food Engn, Kunming 650224, Peoples R China

第一机构：贵州理工学院食品药品制造工程学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Food & Pharmaceut Engn, Guiyang 550025, Peoples R China;corresponding author), Guizhou Acad Agr Sci, Guizhou Key Lab Agr Microbiol, Guiyang 550009, Peoples R China.|贵州理工学院食品药品制造工程学院;贵州理工学院;

年份：2026

期号：134

起止页码：157-176

外文期刊名：MYCOKEYS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001806199500001)】；

基金：This work was financed by the National Natural Science Foundation of China (NSFC 32360011) , the Science and Technology Foundation of Guizhou Province (Qian Ke He Pingtai ZSYS [2025] 029) , and Guizhou Institute of Technology High-Level Talent Research Start-up Project (2023GCC069) . Qian Ke He Basic Research (MS) [2026] 262.

语种：英文

外文关键词：1 new record; 2 new species; phylogeny; taxonomy; Tubeufiaceae

摘要：Lignicolous freshwater fungi are key decomposers in freshwater ecosystems, playing crucial roles in nutrient cycling and energy flow. During investigations into microfungi in freshwater habitats in Guizhou Province, China, six specimens of Neohelicomyces were collected from submerged decaying wood. Detailed morphological examinations, together with multi-gene phylogenetic analyses based on LSU, ITS, rpb2 and tef1-alpha sequence data, were conducted to clarify their taxonomic placements. Phylogenetic results revealed that these collections represent two novel species, N. brevis and N. wujiangensis, and one known species, N. astrictus, which is reported here as a new habitat record from a freshwater habitat. The two new species can be distinguished from their closest relatives by differences in conidiophore morphology, conidial size and septation, and colony characteristics, and are well supported as independent lineages in the phylogenetic analyses. This study expands the species diversity of Neohelicomyces and highlights freshwater ecosystems in southwestern China as important reservoirs of helicosporous hyphomycetes diversity.