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Antagonistic Interaction of Staphylococcus aureus and Staphylococcus epidermidis with Rhizopus arrhizus Mediated by Phenol Soluble Modulins and Organic Acids.
- Source :
-
ACS infectious diseases [ACS Infect Dis] 2019 Nov 08; Vol. 5 (11), pp. 1887-1895. Date of Electronic Publication: 2019 Sep 30. - Publication Year :
- 2019
-
Abstract
- Rhizopus arrhizus ( R. arrhizus ) is a common causative agent of mucormycosis that usually enters the human body through the respiratory tract and skin. Both these sites harbor staphylococci as a part of the normal microflora, indicating the possibility of interspecies interactions. We aimed to elucidate this interaction and identify the molecular mechanisms involved. Both Staphylococcus aureus ( S. aureus ) and Staphylococcus epidermidis ( S. epidermidis ) substantially hindered R. arrhizus radial growth, spore germination, and liquid culture biomass. Secreted components in the stationary-phase supernatant were responsible for this activity. The active components, based on molecular weight-based fractionation, mass spectrometry, and ion exclusion chromatography, were identified as a truncated version of phenol soluble modulin α2 (Δ1Δ2PSMα2) and PSMα3 in S. aureus , PSMδ in S. epidermidis , and organic acids in both the species. Exposure to the phenol soluble modulins (PSMs) extensively damaged the fungal spores and pre-existing hyphae, leading to bleb formation, shriveling, hyphal shrinkage, and cell distortion.
- Subjects :
- Acids chemistry
Acids metabolism
Antibiosis
Antifungal Agents chemistry
Antifungal Agents metabolism
Phenols chemistry
Phenols metabolism
Rhizopus growth & development
Staphylococcus aureus metabolism
Staphylococcus epidermidis metabolism
Acids pharmacology
Antifungal Agents pharmacology
Phenols pharmacology
Rhizopus drug effects
Staphylococcus aureus chemistry
Staphylococcus epidermidis chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 2373-8227
- Volume :
- 5
- Issue :
- 11
- Database :
- MEDLINE
- Journal :
- ACS infectious diseases
- Publication Type :
- Academic Journal
- Accession number :
- 31535547
- Full Text :
- https://doi.org/10.1021/acsinfecdis.9b00205