Transcriptome profiling of Malus sieversii under freezing stress after being cold-acclimated.

ABSTRACT:

Background

Freezing temperatures are an abiotic stress that has a serious impact on plant growth and development in temperate regions and even threatens plant survival. The wild apple tree (Malus sieversii) needs to undergo a cold acclimation process to enhance its freezing tolerance in winter. Changes that occur at the molecular level in response to low temperatures are poorly understood in wild apple trees.

Results

Phytohormone and physiology profiles and transcriptome analysis were used to elaborate on the dynamic response mechanism. We determined that JA, IAA, and ABA accumulated in the cold acclimation stage and decreased during freezing stress in response to freezing stress. To elucidate the molecular mechanisms of freezing stress after cold acclimation, we employed si

SUBMITTER: Zhou P 

PROVIDER: S-EPMC8456659 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature