Grapevine (Vitis vinifera) responses to salt stress and alkali stress: transcriptional and metabolic profiling.

ABSTRACT:

Background

Soil salinization and alkalization are widespread environmental problems that limit grapevine (Vitis vinifera L.) growth and yield. However, little is known about the response of grapevine to alkali stress. This study investigated the differences in physiological characteristics, chloroplast structure, transcriptome, and metabolome in grapevine plants under salt stress and alkali stress.

Results

We found that grapevine plants under salt stress and alkali stress showed leaf chlorosis, a decline in photosynthetic capacity, a decrease in chlorophyll content and Rubisco activity, an imbalance of Na⁺ and K⁺, and damaged chloroplast ultrastructure. Fv/Fm decreased under salt stress and alkali stress. NPQ increased under salt stress whereas decrease

SUBMITTER: Lu X 

PROVIDER: S-EPMC9661776 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature