Shedding light on the darkness: a new genus and four new species in the family Chaetomiaceae from Brazilian neotropical caves revealed by multi-gene phylogenetic analyses

Interest in cave fungal diversity is flourishing because it may represent a reservoir of new species and metabolites. However, the mycobiota remains poorly studied in the underground environment, especially in neotropical regions. During surveys that aimed to investigate the fungal diversity in quar...

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Bibliographic Details
Published in:Mycological progress 2023-07, Vol.22 (7), p.49-49, Article 49
Main Authors: Condé, Thiago Oliveira, Leão, Ana Flávia, Dutra, Yan Lucas Gomes, Rosado, André Wilson Campos, Neves, Soraya de Carvalho, Fraga, Lucio Mauro Soares, Kasuya, Maria Catarina Megumi, Pereira, Olinto Liparini
Format: Article
Language:English
Subjects:
animal manures
Biomedical and Life Sciences
Brazil
Cavernicolous species
Caves
Chaetomiaceae
Chaetomium
Chiroptera
Darkness
DNA
Dung
Ecology
family
Fungi
Gene sequencing
genus
Guano
Life Sciences
Limestone
Metabolites
Microbiology
mycobiota
Neotropics
New genera
new genus
New species
Nucleotide sequence
Original Article
Phylogenetics
Phylogeny
Physical characteristics
Plant Sciences
Quartzite
Substrates
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Summary:Interest in cave fungal diversity is flourishing because it may represent a reservoir of new species and metabolites. However, the mycobiota remains poorly studied in the underground environment, especially in neotropical regions. During surveys that aimed to investigate the fungal diversity in quartzite and limestone caves in the Southern Espinhaço Mountain in Brazil, six Chaetomiaceae isolates were obtained from different cave substrates. Five taxonomical novelties of Chaetomiaceae in Brazilian caves were discovered based on phylogenetic analyses using DNA sequences from the ITS, LSU, TUB , and RPB2 genes. Chaetomium meridionalense , Pseudohumicola alba , and Pseudohumicola lutea are new species found in Gruta da Extração and Gruta Velha Nova caves. Parahumicola is introduced as a new genus representing a novel phylogenetic lineage with unique morphological characteristics in the family Chaetomiaceae . This new monotypic genus is typified by P. guana , which was found in a bat guano sample in the Gruta Monte Cristo cave. Furthermore, this is the first report of Collariella bostrychodes in a neotropical cave. Overall, these findings emphasise that Brazilian caves constitute an untapped source of fungal resources.
ISSN:1617-416X
1861-8952
DOI:10.1007/s11557-023-01899-0