Acclimation, priming and memory in the response of Arabidopsis thaliana seedlings to cold stress.

ABSTRACT: Because stress experiences are often recurrent plants have developed strategies to remember a first so-called priming stress to eventually respond more effectively to a second triggering stress. Here, we have studied the impact of discontinuous or sustained cold stress (4 °C) on in vitro grown Arabidopsis thaliana seedlings of different age and their ability to get primed and respond differently to a later triggering stress. Cold treatment of 7-d-old seedlings induced the expression of cold response genes but did not cause a significantly enhanced freezing resistance. The competence to increase the freezing resistance in response to cold was associated with the formation of true leaves. Discontinuous exposure to cold only during the night led to a stepwise modest increase in freezing toler

SUBMITTER: Leuendorf JE 

PROVIDER: S-EPMC6971231 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature