Coniochaeta fungus benefits from its intracellular bacteria to form biofilm and defend against other fungi.
Antibiotic production
Bacterial-fungal interactions
Biofilm
Coniochaeta fungus
Intracellular bacteria
Journal
Archives of microbiology
ISSN: 1432-072X
Titre abrégé: Arch Microbiol
Pays: Germany
ID NLM: 0410427
Informations de publication
Date de publication:
May 2021
May 2021
Historique:
received:
23
09
2020
accepted:
18
11
2020
revised:
10
11
2020
pubmed:
3
1
2021
medline:
15
5
2021
entrez:
2
1
2021
Statut:
ppublish
Résumé
During cultivation of a gastric fungus, Coniochaeta polymorpha, growth of Nocardia colonies on top of the fungal culture raised the question whether bacteria originated from inside of fungus. In this study, the likelihood of intracellular origin of bacteria as well as interaction of two microorganisms was assessed. Fluorescence and electron microscopy showed occurrence of several bacterial cells in fungal cytoplasm. A thick biofilm was observed on the surface of co-culture compared with thin one on bacterial and none on fungal monocultures. Field emission scanning electron microscopy (FESEM) micrographs of co-culture showed a dense network of fungal and bacterial cells embedded in a slime-like layer. Dual cultures revealed antagonistic activity of both fungus and bacteria against three Candida species. These findings indicate that Nocardia isolate identified in this study originated from the inside of fungus C. polymorpha. Intracellular bacteria could benefit the fungal host by producing a rigid biofilm and an antifungal compound.
Identifiants
pubmed: 33386870
doi: 10.1007/s00203-020-02122-4
pii: 10.1007/s00203-020-02122-4
doi:
Substances chimiques
Antifungal Agents
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1357-1366Références
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