Xylem cell size regulation is a key adaptive response to water deficit in Eucalyptus grandis.

ABSTRACT: Future climatic scenarios forecast increasingly frequent droughts that will pose substantial consequences on tree mortality. In light of this, drought-tolerant eucalypts have been propagated; however, the severity of these conditions will invoke adaptive responses, impacting the commercially valuable wood properties. To determine what mechanisms govern the wood anatomical adaptive response, highly controlled drought experiments were conducted in Eucalyptus grandis W. Hill ex Maiden, with the tree physiology and transcriptome closely monitored. In response to water deficit, E. grandis displays an isohydric stomatal response to conserve water and enable stem growth to continue, albeit at a reduced rate. Maintaining gaseous exchange is likely a critical short-term response that drives the for

SUBMITTER: Keret R 

PROVIDER: S-EPMC11247191 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature