Acrogenospora (Acrogenosporaceae, Minutisphaerales) Appears to Be a Very Diverse Genus.

Hong-Yan Su,Hong-Wei Shen,Eric H C Mckenzie,Dan-Feng Bao,Kevin D Hyde,Zong-Long Luo,D Jayarama Bhat

doi:10.3389/fmicb.2020.01606

Abstract

During a study of diversity and taxonomy of lignicolous freshwater fungi in China, nine species of Acrogenospora were collected. Seven of these were new species and they are described and illustrated. With morphology, additional evidence to support establishment of new species is provided by phylogeny derived from DNA sequence analyses of a combined LSU, SSU, TEF1α, and RPB2 sequence dataset. Acrogenospora subprolata and A. verrucispora were re-collected and sequenced for the first time. The genus Acrogenospora is far more species rich than originally thought, with nine species found in a small area of Yunnan Province, China.

Highlights

Freshwater fungi are an ecological group that are defined by their presence in freshwater for the whole or part of their life cycle (Thomas, 1996; Wong et al, 1998), and include any species that grow on predominantly aquatic or semi-aquatic substrates (Goh and Hyde, 1996)
In the phylogenetic analyses all the new strains grouped with members of Acrogenospora within Acrogenosporaceae with high support (99% Maximum Likelihood (ML) and 0.99 BYPP)
We provide new descriptions and illustrations for seven new species and two known species of Acrogenospora

Summary

Introduction

Freshwater fungi are an ecological group that are defined by their presence in freshwater for the whole or part of their life cycle (Thomas, 1996; Wong et al, 1998), and include any species that grow on predominantly aquatic or semi-aquatic substrates (Goh and Hyde, 1996). We report nine Acrogenosporaceae species that were collected from freshwater habitats in China. Acrogenosporaceae was established by Jayasiri et al (2018) to accommodate Acrogenospora within Minutisphaerales, with the latter being a freshwater ascomycetes order, comprising two families, Acrogenosporaceae and Minutisphaeraceae (Wijayawardene et al, 2020). Members of these two families are mostly reported from freshwater habitats (Goh et al, 1998; Raja et al, 2015; Bao et al, 2019; Hyde et al, 2019)

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