Beyond the extreme: recovery of carbon and water relations in woody plants following heat and drought stress.

ABSTRACT: Plant responses to drought and heat stress have been extensively studied, whereas post-stress recovery, which is fundamental to understanding stress resilience, has received much less attention. Here, we present a conceptual stress-recovery framework with respect to hydraulic and metabolic functioning in woody plants. We further synthesize results from controlled experimental studies following heat or drought events and highlight underlying mechanisms that drive post-stress recovery. We find that the pace of recovery differs among physiological processes. Leaf water potential and abscisic acid concentration typically recover within few days upon rewetting, while leaf gas exchange-related variables lag behind. Under increased drought severity as indicated by a loss in xylem hydraulic conduc

SUBMITTER: Ruehr NK 

PROVIDER: S-EPMC6703153 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature