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A peculiar cell cycle arrest at g2/m stage during the stationary phase of growth in the wine yeast Hanseniaspora vineae

Schwarz, Luisa Vivian ; Valera, Maria Jose ; Delamare, Ana Paula Longaray ; Carrau, Francisco ; Echeverrigaray, Sergio

Current research in microbial sciences, 2022-01, Vol.3, p.100129-100129, Article 100129 [Periódico revisado por pares]

Elsevier B.V

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  • Título:
    A peculiar cell cycle arrest at g2/m stage during the stationary phase of growth in the wine yeast Hanseniaspora vineae
  • Autor: Schwarz, Luisa Vivian ; Valera, Maria Jose ; Delamare, Ana Paula Longaray ; Carrau, Francisco ; Echeverrigaray, Sergio
  • Assuntos: Cell cycle ; from the special issue: Fungal Cell Death, edited by Mehdi Kabbage and Neta Shlezinger ; Hanseniaspora ; Resting stage ; Viability
  • É parte de: Current research in microbial sciences, 2022-01, Vol.3, p.100129-100129, Article 100129
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: •Cell cycle progress variations among Hanseniaspora species.•H. vineae shows an unusual cell cycle progress.•H. vineae undergoes G2/M arrest in stationary phase. Yeasts of the genus Hanseniaspora gained notoriety in the last years due to their contribution to wine quality, and their loss of several genes, mainly related to DNA repair and cell cycle processes. Based on genomic data from many members of this genus, they have been classified in two well defined clades: the “faster-evolving linage” (FEL) and the “slower-evolving lineage” (SEL). In this context, we had detected that H. vineae exhibited a rapid loss of cell viability in some conditions during the stationary phase compared to H. uvarum and S. cerevisiae. The present work aimed to evaluate the viability and cell cycle progression of representatives of Hanseniaspora species along their growth in an aerobic and discontinuous system. Cell growth, viability and DNA content were determined by turbidity, Trypan Blue staining, and flow cytometry, respectively. Results showed that H. uvarum and H. opuntiae (representing FEL group), and H. osmophila (SEL group) exhibited a typical G1/G0 (1C DNA) arrest during the stationary phase, as S. cerevisiae. Conversely, the three strains studied here of H. vineae (SEL group) arrested at G2/M stages of cell cycle (2C DNA), and lost viability rapidly when enter the stationary phase. These results showed that H. vineae have a unique cell cycle behavior that will contribute as a new eukaryotic model for future studies of genetic determinants of yeast cell cycle control and progression. [Display omitted]
  • Editor: Elsevier B.V
  • Idioma: Inglês
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