ArticleBrazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]
Bioethanol strains of Saccharomyces cerevisiae characterised by microsatellite and stress resistance.
Article in Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology]. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 28 citations in OpenAlex.
- Yeast population dynamics in Brazilian bioethanol production.G3 (Bethesda, Md.) · 2023Article
- Evaluation of different strains of Saccharomyces cerevisiae for ethanol production from high-amylopectin BRS AG rice (Oryza sativa L.).Scientific reports · 2022Article
- Never Change a Brewing Yeast? Why Not, There Are Plenty to Choose From.Frontiers in genetics · 2020Review
- Interaction of 4-ethylphenol, pH, sucrose and ethanol on the growth and fermentation capacity of the industrial strain of Saccharomyces cerevisiae PE-2.World journal of microbiology & biotechnology · 2019Article
- A Case Study of Genomic Instability in an Industrial Strain ofG3 (Bethesda, Md.) · 2018Article
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Authors and funding
5 authors at 2 institutions in 1 country.
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Abstract
Strains of Saccharomyces cerevisiae may display characteristics that are typical of rough-type colonies, made up of cells clustered in pseudohyphal structures and comprised of daughter buds that do not separate from the mother cell post-mitosis. These strains are known to occur frequently in fermentation tanks with significant lower ethanol yield when compared to fermentations carried out by smooth strains of S. cerevisiae that are composed of dispersed cells. In an attempt to delineate genetic and phenotypic differences underlying the two phenotypes, this study analysed 10 microsatellite loci of 22 S. cerevisiae strains as well as stress resistance towards high concentrations of ethanol and glucose, low pH and cell sedimentation rates. The results obtained from the phenotypic tests by Principal-Component Analysis revealed that unlike the smooth colonies, the rough colonies of S. cerevisiae exhibit an enhanced resistance to stressful conditions resulting from the presence of excessive glucose and ethanol and high sedimentation rate. The microsatellite analysis was not successful to distinguish between the colony phenotypes as phenotypic assays. The relevant industrial strain PE-2 was observed in close genetic proximity to rough-colony although it does not display this colony morphology. A unique genetic pattern specific to a particular phenotype remains elusive.
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