Aux/IAA14 Regulates microRNA-Mediated Cold Stress Response in Arabidopsis Roots.

ABSTRACT: The phytohormone auxin and microRNA-mediated regulation of gene expressions are key regulators of plant growth and development at both optimal and under low-temperature stress conditions. However, the mechanistic link between microRNA and auxin in regulating plant cold stress response remains elusive. To better understand the role of microRNA (miR) in the crosstalk between auxin and cold stress responses, we took advantage of the mutants of Arabidopsis thaliana with altered response to auxin transport and signal. Screening of the mutants for root growth recovery after cold stress at 4 °C revealed that the auxin signaling mutant, solitary root 1 (slr1; mutation in Aux/IAA14), shows a hypersensitive response to cold stress. Genome-wide expression analysis of miRs in the

SUBMITTER: Aslam M 

PROVIDER: S-EPMC7697755 | biostudies-literature | 2020 Nov

REPOSITORIES: biostudies-literature