The genus Rachicladosporium: introducing new species from sooty mould communities and excluding cold adapted species

Abstract The fungal genus Rachicladosporium (Cladosporiales, Cladosporiaceae), typified by cladosporium-like Rachicladosporium luculiae, includes a morphologically diverse assemblage of species. The species of this genus were reported from different substrates, habitats and environments, including p...

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Bibliographic Details
Published in:Scientific Reports
Main Authors: Marcin Piątek, Monika Stryjak-Bogacka, Paweł Czachura, Magdalena Owczarek-Kościelniak
Format: Article in Journal/Newspaper
Language:English
Published: Nature Portfolio 2023
Subjects:
R
Q
Online Access:https://doi.org/10.1038/s41598-023-49696-9
https://doaj.org/article/d31a4bed27b9422fb181d5954689209d
Description
Summary:Abstract The fungal genus Rachicladosporium (Cladosporiales, Cladosporiaceae), typified by cladosporium-like Rachicladosporium luculiae, includes a morphologically diverse assemblage of species. The species of this genus were reported from different substrates, habitats and environments, including plant leaves and needles, twig, black mould on baobab trees, rocks and insects. In this study, four new Rachicladosporium species (R. europaeum, R. ignacyi, R. kajetanii, R. silesianum) isolated from sooty mould communities covering leaves and needles of trees and shrubs in Poland are described. The new species are delineated based on morphological characteristics and molecular phylogenetic analyses using concatenated ITS, LSU, and rpb2 sequences. All newly described species are nested in the main Rachicladosporium lineage (centred around the type species), which contains species that are able to grow at 25 °C. By contrast, four cold adapted, endolithic species known from Antarctica (R. antarcticum, R. aridum, R. mcmurdoi) and Italian Alps (R. monterosanum) form distant phylogenetic lineage and do not grow at this temperature. Therefore, they are accommodated in the new genus Cryoendolithus, typified by Cryoendolithus mcmurdoi.