Integrative taxonomy of Tetraplosphaeriaceae from the Nujiang River Basin, China, reveals two new species and a new record

2026/06/18 by XUE-LING MA, Ming-Jun Zhu, Fengxiang Ma +3 · 1 voice
Agricultural and Biological Sciences · Biochemistry, Genetics and Molecular Biology · #Enzyme-mediated dye degradation #Mycorrhizal Fungi and Plant Interactions #Plant Pathogens and Fungal Diseases

paper · pdf · doi:10.3897/mycokeys.134.194692

openalex publication_date 2026/06/18 · openalex created_date 2026/06/19 · openalex updated_date 2026/07/02

Abstract

Lignicolous freshwater fungi play crucial ecological roles in nutrient cycling and wood decomposition, yet their diversity remains insufficiently documented in many regions. In this study, we conducted an integrative taxonomic and phylogenetic investigation of Tetraplosphaeriaceae from submerged woody substrates in the Nujiang River Basin, Yunnan Province, China. Five taxa were identified, comprising two new species, Aquatisphaeria fusispora and Tetraploa nujiangensis , one new record for China, T. thailandica , and two previously described species, A. thailandica and T. yunnanensis . Detailed morphological observations were complemented by multigene phylogenetic analyses based on ITS, LSU, SSU, and tub 2 sequences data, which robustly supported their placement within Tetraplosphaeriaceae. The introduction of new taxa and the discovery of novel geographic record have not only expanded the known species diversity of this family but also extended its documented distribution range. Our findings highlight the Nujiang River Basin as an underexplored reservoir of lignicolous freshwater fungal diversity and provide a solid foundation for future systematic, biogeographic, and ecological studies of freshwater fungi in subtropical Asia.

Citations

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Discussions

• 🔬 Five taxa of Tetraplosphaeriaceae have been identified from submerged woody substrates in the Nujiang River Basin, China, including two new species - Aquatisphaeria fusispora and Tetraploa nujiange [bsky, 4 points, 0 comments]

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