Grapevine cell response to carbon deficiency requires transcriptome and methylome reprogramming.

ABSTRACT: Sugar limitation has dramatic consequences on plant cells, which include cell metabolism and transcriptional reprogramming, and the recycling of cellular components to maintain fundamental cell functions. There is however no description of the contribution of epigenetic regulations to the adaptation of plant cells to limited carbon availability. We investigated this question using nonphotosynthetic grapevine cells (Vitis vinifera, cv Cabernet Sauvignon) cultured in vitro with contrasted glucose concentrations. Sugar depletion in the culture medium led to a rapid cell growth arrest and a major metabolic shift that include the depletion in soluble sugar and total amino acids and modulation of the cell redox status. Consistently, flux modeling showed a dramatic slowdown of many

SUBMITTER: Berger MMJ 

PROVIDER: S-EPMC11750959 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature