Pseudoxenochalara gen. nov. (Dermateaceae, Helotiales), with P. grumantiana sp. nov. from the Svalbard archipelago

The family Dermateaceae belongs to the Helotiales order, the class Leotiomycetes, and consists of 14 genera. In this study, we introduce the new genus Pseudoxenochalara gen. nov. to the Dermateaceae family, which is supported by morphological observations and multilocus phylogenetic analysis. Partia...

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Bibliographic Details
Published in:Botanica Serbica
Main Authors: Vadim Alexandrovich Iliushin, Irina Yuryevna Kirtsideli
Format: Article in Journal/Newspaper
Language:English
Published: University of Belgrade 2023
Subjects:
dermateaceae
helotiales
multi-gene phylogeny
arctic tundra
svalbard
Plant ecology
QK900-989
Arctic
Barentsburg
Svalbard
Svalbard Archipelago
Tundra
Online Access:https://doi.org/10.2298/BOTSERB2301055I
https://doaj.org/article/b702ef90d0eb4ed49e5f6b3af5b74d73
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Summary:The family Dermateaceae belongs to the Helotiales order, the class Leotiomycetes, and consists of 14 genera. In this study, we introduce the new genus Pseudoxenochalara gen. nov. to the Dermateaceae family, which is supported by morphological observations and multilocus phylogenetic analysis. Partial sequences of the loci encoding β-tubulin (BenA), ribosomal polymerase II second largest subunit (RPB2), 28S rDNA (LSU) and internal transcribed spacer rDNA region (ITS1-5.8S-ITS2) were analysed. This genus comprises one new species, P. grumantiana, isolated from the soil of the Arctic tundra near the settlement of Barentsburg (the Svalbard archipelago). The asexual morph of P. grumantiana was described. The sequences data, as well as the macroand micromorphological characteristics distinguish P. grumantiana from all known species in the Dermateaceae family.

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