Analysis of Transcriptomic Response to SO₂ by Oenococcus oeni Growing in Continuous Culture.

ABSTRACT: To successfully complete malolactic fermentation (MLF), Oenococcus oeni must overcome wine stress conditions of low pH, high ethanol, and the presence of SO₂. Failure to complete MLF may result in detrimental effects to the quality and stability of the resulting wines. Research efforts to date have focused on elucidating the mechanisms and genetic features that confer the ability to withstand low pH and high ethanol concentrations on O. oeni; however, the responses to SO₂ stress are less well defined. This study focused on characterizing the transcriptional response of O. oeni to SO₂ challenge during cultivation in a continuous system at wine-like pH (3.5). This experimental design allowed the precise discrimination of transcriptional changes linked to SO

SUBMITTER: Onetto CA 

PROVIDER: S-EPMC8510247 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature