Psychrophilic fungi from the world's roof

M. Wang; X. Jiang; W. Wu; Y. Hao; Y. Su; L. Cai; M. Xiang; X. Liu

doi:10.3767/003158515x685878

journal article Jun 29, 2015

Psychrophilic fungi from the world's roof

M. Wang

X. Jiang

W. Wu

Y. Hao Y. Su

L. Cai

M. Xiang X. Liu

Persoonia - Molecular Phylogeny and Evolution of Fungi Vol. 34 No. 1 pp. 100-112 · Westerdijk Fungal Biodiversity Institute

View at Publisher Save 10.3767/003158515x685878

Abstract

During a survey of cold-adapted fungi in alpine glaciers on the Qinghai-Tibet Plateau, 1 428 fungal isolates were obtained of which 150 species were preliminary identified. Phoma sclerotioides and Pseudogymnoascus pannorum were the most dominant species. Psychrotolerant
species in Helotiales (Leotiomycetes, Ascomycota) were studied in more detail as they represented the most commonly encountered group during this investigation. Two phylogenetic trees were constructed based on the partial large subunit nrDNA (LSU) to infer the taxonomic placements
of these strains. Our strains nested in two well-supported major clades, which represented Tetracladium and a previously unknown lineage. The unknown lineage is distant to any other currently known genera in Helotiales. Psychrophila gen. nov. was therefore established
to accommodate these strains which are characterised by globose or subglobose conidia formed from phialides on short or reduced conidiophores. Our analysis also showed that an LSU-based phylogeny is insufficient in differentiating strains at species level. Additional analyses using combined
sequences of ITS+TEF1+TUB regions were employed to further investigate the phylogenetic relationships of these strains. Together with the recognisable morphological distinctions, six new species (i.e. P. antarctica, P. lutea, P. olivacea, T. ellipsoideum,
T. globosum and T. psychrophilum) were described. Our preliminary investigation indicates a high diversity of cold-adapted species in nature, and many of them may represent unknown species.

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Details

Published: Jun 29, 2015
Vol/Issue: 34(1)
Pages: 100-112

Authors

M

M. Wang

University of Birmingham

Anhui University

Cite This Article

M. Wang, X. Jiang, W. Wu, et al. (2015). Psychrophilic fungi from the world's roof. Persoonia - Molecular Phylogeny and Evolution of Fungi, 34(1), 100-112. https://doi.org/10.3767/003158515x685878

Psychrophilic fungi from the world's roof

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