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Nat Commun ; 7: 10610, 2016 Feb 04.
Artigo em Inglês | MEDLINE | ID: mdl-26842393

RESUMO

The microbial secondary metabolome encompasses great synthetic diversity, empowering microbes to tune their chemical responses to changing microenvironments. Traditional metabolomics methods are ill-equipped to probe a wide variety of environments or environmental dynamics. Here we introduce a class of microscale culture platforms to analyse chemical diversity of fungal and bacterial secondary metabolomes. By leveraging stable biphasic interfaces to integrate microculture with small molecule isolation via liquid-liquid extraction, we enable metabolomics-scale analysis using mass spectrometry. This platform facilitates exploration of culture microenvironments (including rare media typically inaccessible using established methods), unusual organic solvents for metabolite isolation and microbial mutants. Utilizing Aspergillus, a fungal genus known for its rich secondary metabolism, we characterize the effects of culture geometry and growth matrix on secondary metabolism, highlighting the potential use of microscale systems to unlock unknown or cryptic secondary metabolites for natural products discovery. Finally, we demonstrate the potential for this class of microfluidic systems to study interkingdom communication between fungi and bacteria.


Assuntos
Aspergillus/metabolismo , Fusarium/metabolismo , Metaboloma , Metabolômica/métodos , Pseudomonas aeruginosa/metabolismo , Ralstonia solanacearum/metabolismo , Aspergillus flavus/metabolismo , Aspergillus fumigatus/metabolismo , Aspergillus nidulans/metabolismo , Cromatografia Líquida de Alta Pressão , Técnicas de Cocultura , Técnicas de Cultura , Microfluídica , Espectrometria de Massas em Tandem
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