Do the ends justify the means? Impact of drought progression rate on stress response and recovery in Vitis vinifera.

ABSTRACT: Plants are frequently exposed to prolonged and intense drought events. To survive, species must implement strategies to overcome progressive drought while maintaining sufficient resources to sustain the recovery of functions. Our objective was to understand how stress rate development modulates energy reserves and affects the recovery process. Grenache Vitis vinifera cultivar was exposed to either fast-developing drought (within few days; FDD), typical of pot experiments, or slow-developing drought (few weeks, SDD), more typical for natural conditions. FDD was characterized by fast (2-3 days) stomatal closure in response to increased stress level, high abscisic acid (ABA) accumulation in xylem sap (>400 μg L^-1 ) without the substantial changes associated with stem priming for re

SUBMITTER: Morabito C 

PROVIDER: S-EPMC9299143 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature