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dc.creatorMichel, Annika Marisaes
dc.creatorBorrero de Acuña, José Manueles
dc.creatorMolinari, Gabriellaes
dc.creatorUnal, Can Murates
dc.creatorWill, Sabinees
dc.creatorDerksen, Elisabethes
dc.date.accessioned2022-11-30T17:45:43Z
dc.date.available2022-11-30T17:45:43Z
dc.date.issued2022
dc.identifier.citationMichel, A.M., Borrero de Acuña, J.M., Molinari, G., Unal, C.M., Will, S. y Derksen, E. (2022). Cellular adaptation of Clostridioides difficile to high salinity encompasses a compatible solute-responsive change in cell morphology. Environmental Microbiology, 24 (3), 1499-1517. https://doi.org/10.1111/1462-2920.15925.
dc.identifier.issn1462-2912es
dc.identifier.issn1462-2920es
dc.identifier.urihttps://hdl.handle.net/11441/139954
dc.description.abstractInfections by the pathogenic gut bacterium Clostridioides difficile cause severe diarrhoeas up to a toxic megacolon and are currently among the major causes of lethal bacterial infections. Successful bacte rial propagation in the gut is strongly associated with the adaptation to changing nutrition-caused environ mental conditions; e.g. environmental salt stresses. Concentrations of 350 mM NaCl, the prevailing salinity in the colon, led to significantly reduced growth of C. difficile. Metabolomics of salt-stressed bacteria revealed a major reduction of the central energy generation path ways, including the Stickland-fermentation reactions. No obvious synthesis of compatible solutes was observed up to 24 h of growth. The ensuing limited tolerance to high salinity and absence of compatible solute synthe sis might result from an evolutionary adaptation to the exclusive life of C. difficile in the mammalian gut. Addi tion of the compatible solutes carnitine, glycine-betaine, γ-butyrobetaine, crotonobetaine, homobetaine, proline betaine and dimethylsulfoniopropionate restored growth (choline and proline failed) under conditions of high salinity. A bioinformatically identified OpuF-type ABC transporter imported most of the used compatible sol utes. A long-term adaptation after 48 h included a shift of the Stickland fermentation-based energy metabolism from the utilization to the accumulation of L-proline and resulted in restored growth. Surprisingly, salt stress resulted in the formation of coccoid C. difficile cells instead of the typical rod-shaped cells, a process reverted by the addition of several compatible solutes. Hence, compatible solute import via OpuF is the major immediate adaptation strategy of C. difficile to high salinity-incurred cellular stress.es
dc.formatapplication/pdfes
dc.format.extent19 p.es
dc.language.isoenges
dc.publisherWILEYes
dc.relation.ispartofEnvironmental Microbiology, 24 (3), 1499-1517.
dc.rightsAtribución 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectCellular adaptationes
dc.subjectClostridioides difficilees
dc.subjectLethal bacterial infectionses
dc.titleCellular adaptation of Clostridioides difficile to high salinity encompasses a compatible solute-responsive change in cell morphologyes
dc.typeinfo:eu-repo/semantics/articlees
dcterms.identifierhttps://ror.org/03yxnpp24
dc.type.versioninfo:eu-repo/semantics/publishedVersiones
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Microbiologíaes
dc.relation.publisherversionhttps://sfamjournals.onlinelibrary.wiley.com/doi/10.1111/1462-2920.15925es
dc.identifier.doi10.1111/1462-2920.15925es
dc.journaltitleEnvironmental Microbiologyes
dc.publication.volumen24es
dc.publication.issue3es
dc.publication.initialPage1499es
dc.publication.endPage1517es

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