Time-dependent deacclimation after cold acclimation in Arabidopsis thaliana accessions.

ABSTRACT: During low temperature exposure, Arabidopsis thaliana and many other plants from temperate climates increase in freezing tolerance in a process termed cold acclimation. However, the correct timing and rate of deacclimation, resulting in loss of freezing tolerance and initiation of growth is equally important for plant fitness and survival. While the molecular basis of cold acclimation has been investigated in detail, much less information is available about deacclimation. We have characterized the responses of 10 natural accessions of Arabidopsis thaliana that vary widely in their freezing tolerance, to deacclimation conditions. Sugar, proline and transcript levels declined sharply over three days in all accessions after transfer of cold acclimated plants to ambient temperatures, while fre

SUBMITTER: Zuther E 

PROVIDER: S-EPMC4648415 | biostudies-literature | 2015 Jul

REPOSITORIES: biostudies-literature