NAC61 regulates late- and post-ripening osmotic, oxidative, and biotic stress responses in grapevine.

ABSTRACT: During late- and post-ripening stages, grape berry undergoes profound biochemical and physiological changes whose molecular control is poorly understood. Here, we report the role of NAC61, a grapevine NAC transcription factor, in regulating different processes involved in berry ripening progression. NAC61 is highly expressed during post-harvest berry dehydration and its expression pattern is closely related to sugar concentration. The ectopic expression of NAC61 in Nicotiana benthamiana leaves resulted in low stomatal conductance, high leaf temperature, tissue collapse and a higher relative water content. Transcriptome analysis of grapevine leaves transiently overexpressing NAC61 and DNA affinity purification and sequencing analyses allowed us to narrow down a list of NAC61-regulated genes

SUBMITTER: Foresti C 

PROVIDER: S-EPMC11016852 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature