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Issue: Vol. 625 No. 3: 14 Nov. 2023
Type: Article
Published: 2023-11-14
DOI: 10.11646/phytotaxa.625.3.4
Page range: 280-288
Abstract views: 88
PDF downloaded: 5

Myxospora poaceicola sp. nov. (Stachybotryaceae, Hypocreales), a novel myrothecium-like fungus from Digitaria sanguinalis (Poaceae)

School of Life Science and Technology; Center for Informational Biology; University of Electronic Science and Technology of China; Chengdu 611731; P.R. China
School of Life Science and Technology; Center for Informational Biology; University of Electronic Science and Technology of China; Chengdu 611731; P.R. China
Department of Soil Science; College of Food and Agriculture Sciences; King Saud University; P.O. Box 145111; Riyadh 11362; Saudi Arabia
School of Life Science and Technology; Center for Informational Biology; University of Electronic Science and Technology of China; Chengdu 611731; P.R. China
1 new taxon myrothecium-like fungus phylogenetic analysis Sichuan Province Sordariomycetes Fungi

Abstract

Fungi belonging to the family Stachybotryaceae play crucial roles in ecosystem dynamics, particularly in decomposing plant materials and pathogens on plants and animals. In this study, we report the isolation of two hitherto unknown hyphomycetous and myrothecium-like fungi collected from two different Poaceae plants in Sichuan Province, China. Molecular analysis based on ITS, LSU, TEF1, RPB2, TUB2, and CAL sequences of newly isolated strains revealed that they represent a previously undescribed species within the genus Myxospora. Phylogenetic investigations employing both maximum-likelihood (ML), maximum parsimony (MP) and Bayesian inference (BI) methods indicated that the new species forms a sister clade with M. masonii and M. graminicola. Nevertheless, M. poaceicola is distinct from these closely related species within the genus by having longer synnemata and wider conidia. We formally designate it as Myxospora poaceicola sp. nov. With the addition of M. poaceicola, the genus Myxospora now comprises six species. This discovery sheds light on the diversity of Myxospora fungi and underscores the importance of further taxonomic exploration in this genus.

 

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