Influence of the metabolic state on the tolerance of Pichia kudriavzevii to heavy metals

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorMesquita, Vanessa A.-
Autor(es): dc.creatorMachado, Manuela D.-
Autor(es): dc.creatorSilva, Cristina F.-
Autor(es): dc.creatorSoares, Eduardo V.-
Data de aceite: dc.date.accessioned2026-02-09T12:26:42Z-
Data de disponibilização: dc.date.available2026-02-09T12:26:42Z-
Data de envio: dc.date.issued2018-07-13-
Data de envio: dc.date.issued2018-07-13-
Data de envio: dc.date.issued2016-11-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/29625-
Fonte completa do material: dc.identifierhttps://onlinelibrary.wiley.com/doi/abs/10.1002/jobm.201600232-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1161461-
Descrição: dc.descriptionThis work aims to examine the influence of the metabolic state of the yeast Pichia kudriavzevii on the susceptibility to a metals mixture (5 mg L−1 Cd, 10 mg L−1 Pb, and 5 mg L−1 Zn). Cells exposed to the metals mixture in the presence of 25 mmol L−1 glucose displayed a higher loss of membrane integrity and proliferation capacity, compared to cells incubated in the absence of glucose. The analysis of the effect of individual metals revealed that glucose increased the toxic effect of Cd marginally, and of Pb significantly. The increased susceptibility to heavy metals due to glucose was attenuated in the simultaneous presence of a mitochondrial respiration inhibitor such as sodium azide (NaN3). ATP‐depleted yeast cells, resulting from treatment with the non‐metabolizable glucose analogue 2‐deoxy‐d‐glucose, showed an increased susceptibility to heavy metals mixture. Pre‐incubation of yeast cells with 1 or 1.5 mmol L−1 Ca2+ reduced significantly (P < 0.05) the loss of membrane integrity induced by the metals mixture. These findings contribute to the understanding of metals mechanisms of toxicity in the non‐conventional yeast P. kudriavzevii.-
Idioma: dc.languageen-
Publicador: dc.publisherWiley-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceJournal of Basic Microbiology-
Palavras-chave: dc.subject2‐deoxy‐d‐glucose (2‐DOG)-
Palavras-chave: dc.subjectHeavy metals toxicity-
Palavras-chave: dc.subjectMembrane integrity-
Palavras-chave: dc.subjectSodium azide-
Palavras-chave: dc.subjectYeast viability-
Palavras-chave: dc.subject2 desoxi-d-glicose (2-DOG)-
Palavras-chave: dc.subjectToxicidade de metais pesados-
Palavras-chave: dc.subjectIntegridade da membrana-
Palavras-chave: dc.subjectAzida de sódio-
Palavras-chave: dc.subjectViabilidade de levedura-
Título: dc.titleInfluence of the metabolic state on the tolerance of Pichia kudriavzevii to heavy metals-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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