Paramphibambusabambusicola gen. et. sp. nov., Arecophilaxishuangbannaensis and A.zhaotongensis spp. nov. in Cainiaceae from Yunnan, China

Li-Su Han; Nalin N Wijayawardene; Chao Liu; Li-Hong Han; Itthayakorn Promputtha; Qiang Li; Abdallah M Elgorban; Salim Al-Rejaie; Kazuaki Tanaka; Dong-Qin Dai

doi:10.3897/mycokeys.104.117872

Paramphibambusabambusicola gen. et. sp. nov., Arecophilaxishuangbannaensis and A.zhaotongensis spp. nov. in Cainiaceae from Yunnan, China

MycoKeys. 2024 Apr 16:104:113-132. doi: 10.3897/mycokeys.104.117872. eCollection 2024.

Authors

Affiliations

¹ Center for Yunnan Plateau Biological Resources Protection and Utilization, College of Biological Resource and Food Engineering, Qujing Normal University, Qujing, Yunnan 655011, China.
² Tropical Microbiology Research Foundation, 96/N/10, Meemanagoda Road, 10230 Pannipitiya, Sri Lanka.
³ Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.
⁴ Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia.
⁵ Department of Pharmacology & Toxicology, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia.

Abstract

Morphological comparisons and multi locus phylogenetic analyses (base on the combined genes of ITS, LSU, rpb2 and tub) demonstrated that three new saprobic taxa isolated from bamboo belong to Cainiaceae. These taxa comprise a novel genus Paramphibambusa (P.bambusicolasp. nov.) and two new species, Arecophilaxishuangbannaensis and A.zhaotongensis. The three new taxa belong to Cainiaceae (Xylariales, Sordariomycetes) a poorly studied family, which now comprises eight genera. Paramphibambusa can be distinguished from other Cainiaceae genera in having ascomata with a neck and ascospores lacking longitudinal striation, germ slits or germ pores. The two new Arecophila species clustered in a clade with Arecophila sp. and A.bambusae. Detailed morphological descriptions, illustrations, and an updated phylogenetic tree are provided for the new taxa.

Keywords: Bambusicolous fungi; Xylariales; multilocus phylogeny; taxonomy.

Li-Su Han, Nalin N. Wijayawardene, Chao Liu, Li-Hong Han, Itthayakorn Promputtha, Qiang Li, Abdallah M. Elgorban, Salim Al-Rejaie, Kazuaki Tanaka, Dong-Qin Dai.