Perdigão Cota de Almeida S, Rozas EE, Oller do Nascimento CA, Dias M, Mendes MA. Metabolomic and secretomic approach to the resistance features of the fungus Aspergillus niger IOC 4687 to copper stress.
Metallomics 2020;
13:6050762. [PMID:
33570139 DOI:
10.1093/mtomcs/mfaa010]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 12/04/2020] [Accepted: 12/23/2020] [Indexed: 11/14/2022]
Abstract
Metabolomic and secretomic analyses of Aspergillus niger IOC 4687 indicated the features of resistance of this strain to copper stress. To investigate the metabolites produced under oxidative stress conditions, gas chromatography-mass spectrometry analysis was performed. The secretome principal component analysis results showed that mannitol could be the main metabolite responsible for conferring resistance to the fungus, and gluconic acid is the possible cause of copper desorption because of its chelating ability. The meta-analysis of the metabolome of A. niger IOC 4687 indicated that a low concentration of sorbitol and ribonolactone during growth may be an indicator of oxidative stress.
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