Morphology and Multigene Phylogeny Revealed Three New Species of Helminthosporium (Massarinaceae, Pleosporales) from China

Abstract

Saprobic hyphomycetes are highly diverse on plant debris. Over the course of our mycological surveys in southern China, three new Helminthosporium species, H. guanshanense sp. nov., H. jiulianshanense sp. nov. and H. meilingense sp. nov., collected on dead branches of unidentified plants, were introduced by morphological and molecular phylogenetic analyses. Multi-loci (ITS, LSU, SSU, RPB2 and TEF1) phylogenetic analyses were performed using maximum-likelihood and Bayesian inference to infer their taxonomic positions within Massarinaceae. Both molecular analyses and morphological data supported H. guanshanense, H. jiulianshanense and H. meilingense as three independent taxa within Helminthosporium. A list of accepted Helminthosporium species with major morphological features, host information, locality and sequence data was provided. This work expands our understanding of the diversity of Helminthosporium-like taxa in Jiangxi Province, China.

Morphological and Phylogenetic Analyses Reveal Three New Species of Didymella (Didymellaceae, Pleosporales) from Jiangxi, China

“…There are many kinds of fungi in Jiangxi Province, and the fungal groups are complex. Relevant studies have shown that several mycological investigations are also constantly exploring and enriching the fungal diversity (e.g., [12,[43][44][45][46]). In this study, we isolated plant pathogens from diseased leaves of a wide range of plant hosts in Jiangxi Province, China.…”