6533b7dcfe1ef96bd12731e7

RESEARCH PRODUCT

Evaluation of the use of phase-specific gene promoters for the expression of enological enzymes in an industrial wine yeast strain

Amparo QuerolSergi PuigJosé E. Pérez-ortínJosé E. Pérez-ortínDaniel Ramón

subject

Reporter geneSaccharomyces cerevisiaeBioengineeringPromoterGeneral MedicineBiologybiology.organism_classificationApplied Microbiology and BiotechnologyEnzyme assayYeast in winemakingBiochemistryGene expressionbiology.proteinFermentationGeneBiotechnology

description

Genes as POT1, HSP104 and SSA3, which are late expressed in laboratory culture conditions are expressed only during the first few days in microvinifications in wine yeast cells. This effect is probably due to the different growth conditions and leads to useless levels of enzyme activity for a reporter gene. However the ACT1 promoter, which is constitutively expressed in laboratory conditions, produces sufficient amounts of enzyme activity in late fermentation phases.

https://doi.org/10.1007/bf00154615