200 years of taxonomic confusion: Sporendonema and allies.
Arachniotus
Onygenales
Sphaerosporium
Cheese fungi
Halotolerance
Taxonomy
Journal
Antonie van Leeuwenhoek
ISSN: 1572-9699
Titre abrégé: Antonie Van Leeuwenhoek
Pays: Netherlands
ID NLM: 0372625
Informations de publication
Date de publication:
14 Mar 2024
14 Mar 2024
Historique:
received:
06
11
2023
accepted:
28
01
2024
medline:
18
3
2024
pubmed:
14
3
2024
entrez:
14
3
2024
Statut:
epublish
Résumé
The genus Sporendonema (Gymnoascaceae, Onygenales) was introduced in 1827 with the type species S. casei for a red mould on cheese. Cheese is a consistent niche for this species. Sphaerosporium equinum is another species classified in Gymnoascaceae and has also been reported from cheese. Recently, other habitats have been reported for both Sporendonema casei and Sphaerosporium equinum. The present study aimed to investigate the taxonomy of Sporendonema and Sphaerosporium, as well as a close neighbour, Arachniotus. Two strains of Hormiscium aurantiacum, another related cheese-associated species were also included in the analyses. Strains were evaluated in terms of macro- and micromorphology, physiology including salt tolerance, growth rate at different temperatures, casein degradation, cellulase activity, lipolytic activity, and multi-locus phylogeny with sequences of the nuclear ribosomal internal transcribed spacer region, the D1-D2 region of the large subunit and partial β-tubulin locus sequences. The results showed that the analysed species were congeneric, and the generic names Arachniotus and Sphaerosporium should be reduced to the synonymy of Sporendonema. Therefore, four new combinations as well as one lectotype and one epitype were designated in Sporendonema. Two strains attributed to Sphaerosporium equinum from substrates other than cheese were found to be phylogenetically and morphologically deviant and were introduced as a new species named Sporendonema isthmoides.
Identifiants
pubmed: 38483617
doi: 10.1007/s10482-024-01935-3
pii: 10.1007/s10482-024-01935-3
pmc: PMC10940481
doi:
Substances chimiques
DNA, Ribosomal Spacer
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
53Informations de copyright
© 2024. The Author(s).
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