1. A new species of Dictyochaeta (Sordariomycetes, Chaetosphaeriales, Chaetosphaeriaceae) from freshwater habitats in China.
- Author
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Xin-Yi Yan, Jun-En Huang, Hai-Yan Song, Yang Gao, Hai-Jing Hu, Zhi-Jun Zhai, Jun-Qing Yan, Guang-Hua Huo, and Dian-Ming Hu
- Subjects
ENVIRONMENTALLY sensitive areas ,ECOSYSTEM services ,BIODIVERSITY ,FRESHWATER habitats - Abstract
Background: Freshwater fungi refer to the fungi that depend on the freshwater habitats for the whole life cycle or part of their life cycle. In this context, a new aquatic hyphomycete was isolated from decaying wood in a freshwater habitat in Jiangxi Province, China. New information: Dictyochaeta jiangxiensis sp. nov., a new aquatic hyphomycete, is characterised by its unbranched, septate, base-fertile conidiophores with multisepta and single phialide at the apex, brown, sterile seta, monophialidic, subcylindrical conidiogenous cells narrowing below the funnel-shaped collarette, hyaline, unicellular, thin-walled, smooth, guttulate, falcate to subclavate conidia narrowly rounded at both ends with hair-like appendages. Phylogenetically, the new species Dictyochaeta jiangxiensis clustered together with Dictyochaeta brevis MFLU 19-0216 in a well-supported clade, but formed a separate branch. In order to better define the taxonomic status of the new species, a phylogenetic tree of most closely-related taxa in Chaetosphaeriaceae was established, based on multilocus sequences (ITS and LSU). The novel species is described and illustrated. Newlygenerated molecular data of Dictyochaeta jiangxiensis is also provided. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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