文献类型：期刊文献

英文题名：Two new Neohelicomyces species (Tubeufiaceae, Tubeufiales) associated with Coffea arabica L. in Yunnan Province, China

作者：Han, Mei-Yan Yang, Jing-Ya Karunarathna, Samantha C. Kumla, Jaturong Lu, Li Zheng, De-Ge Elgorban, Abdallah M. Alfagham, Alanoud T. Yu, Fu-Qiang Dai, Dong-Qin Zhang, Li-Juan Suwannarach, Nakarin Tibpromma, Saowaluck

第一作者：Han, Mei-Yan

通信作者：Tibpromma, S[1];Tibpromma, S[2];Suwannarach, N[3];Suwannarach, N[4];Suwannarach, N[5]

机构：[1]Qujing Normal Univ, Coll Biol & Food Engn, Ctr Yunnan Plateau Biol Resources Protect & Utiliz, Qujing 655099, Peoples R China;[2]Qujing Normal Univ, Coll Biol & Food Engn, Yunnan Int Joint Lab Fungal Sustainable Utilizat S, Qujing 655099, Peoples R China;[3]Chiang Mai Univ, Fac Sci, Dept Biol, Chiang Mai 50200, Thailand;[4]Chiang Mai Univ, Ctr Excellence Microbial Divers & Sustainable Util, Chiang Mai 50200, Thailand;[5]Yuxi Normal Univ, Coll Agron & Biol Sci, Yuxi, Yunnan, Peoples R China;[6]Chiang Mai Univ, Off Res Adm, Chiang Mai 50200, Thailand;[7]Jiangxi Agr Univ, Bioengn & Technol Res Ctr Edible & Med Fungi, Nanchang 330045, Peoples R China;[8]King Saud Univ, Ctr Excellence Biotechnol Res, Riyadh, Saudi Arabia;[9]King Saud Univ, Coll Sci, Dept Bot & Microbiol, Riyadh, Saudi Arabia;[10]Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species & Yunnan Int Joint Lab, Kunming 650201, Peoples R China;[11]Guizhou Inst Technol, Sch Food & Pharmaceut Engn, Guiyang 550025, Peoples R China

第一机构：Qujing Normal Univ, Coll Biol & Food Engn, Ctr Yunnan Plateau Biol Resources Protect & Utiliz, Qujing 655099, Peoples R China

通信机构：corresponding author), Qujing Normal Univ, Coll Biol & Food Engn, Ctr Yunnan Plateau Biol Resources Protect & Utiliz, Qujing 655099, Peoples R China;corresponding author), Qujing Normal Univ, Coll Biol & Food Engn, Yunnan Int Joint Lab Fungal Sustainable Utilizat S, Qujing 655099, Peoples R China;corresponding author), Chiang Mai Univ, Fac Sci, Dept Biol, Chiang Mai 50200, Thailand;corresponding author), Chiang Mai Univ, Ctr Excellence Microbial Divers & Sustainable Util, Chiang Mai 50200, Thailand;corresponding author), Chiang Mai Univ, Off Res Adm, Chiang Mai 50200, Thailand.

年份：2026

期号：127

起止页码：343-362

外文期刊名：MYCOKEYS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001682240400001)】；

基金：Meiyan Han thanks the CMU Presidential Scholarship, Chiang Mai University, Thailand. SCK and ST thank the Yunnan Revitalization Talents Support Plan (High-End Foreign Experts Program), the Key Laboratory of Yunnan Provincial Department of Education of the Deep-Time Evolution on Biodiversity from the Origin of the Pearl River, and the National Natural Science Foundation of China (No. 32260004) for their support. Nakarin Suwannarach thanks Chiang Mai University for the partial support. The authors would like to thank the Doctoral Innovation Research Program Team at Qujing Normal University for its support. The authors extend their appreciation to the Ongoing Research funding Program (ORF-ctr-2026-6), King Saud University, Riyadh, Saudi Arabia. Dr. Shaun Pennycook, Manaaki Whenua-Landcare Research, New Zealand, is thanked for his assistance in selecting species epithets for the new taxa.

语种：英文

外文关键词：Coffee-associated microfungi; morphology; multigene phylogeny; new taxa; taxonomy

摘要：Neohelicomyces species comprise a group of helicosporous hyphomycetes, with over 90% of the currently accepted taxa reported from China, occurring in both freshwater and terrestrial habitats. Although the genus has been increasingly documented in recent years, its presence in crop-related ecosystems remains poorly understood, as most species have been reported from unknown hosts. In this study, a survey of fungi associated with Coffea arabica in Yunnan Province, China, was conducted, and fruiting bodies of helicosporous hyphomycetes were found on dead branches of coffee plants. Based on the morphological characteristics of conidiophores, conidiogenous cells, and conidia, in combination with multigene phylogenetic analyses (ITS, LSU, rpb2, and tef1-alpha), two novel species of Neohelicomyces (N. coffea= and N. puerensis) were identified. Morphologically, N. coffea= differs from closely related species N. edgeworthia= by having shorter conidiophores, longer conidiogenous cells, and smaller, multi-septate conidia (vs. aseptate in N. edgeworthia=), while N. puerensis differs from its close relative N. dehongensis by having narrower and distinctly multi-septate conidia, more tightly coiled conidial filaments, and unbranched conidiophores. These results expand the known diversity of Neohelicomyces and contribute to a better understanding of fungal assemblages associated with coffee plants in subtropical China. In addition, detailed descriptions, illustrations, and phylogenetic trees are provided.