They Can Handle the Stress: MPK17 and PMD1 act in a salt-specific pathway. (1st February 2018)

• Record Type: Journal Article
• Authors: Frick, E. M.; Strader, L. C.
• Is Part Of: Plant signaling & behavior. Volume 13:Number 2(2018)
• Publication Date: 2018-02-01
• Subjects: Salt stress -- peroxisome division -- ROS signaling; Plant ecophysiology -- Periodicals; Plant cellular signal transduction -- Periodicals; Plant cellular signal transduction; Plant ecophysiology; Periodicals; Electronic journals; 581
• DOI: 10.1080/15592324.2018.1428518
• Languages: English
• ISSNs: 1559-2316

Abstract

ABSTRACT: Arabidopsis MAP KINASE17 (MPK17) was recently identified as a novel regulator of peroxisome division in response to salt stress. Further, the known peroxisome division factor PEROXISOME AND MITOCHONDRIAL DIVISION FACTOR1 (PMD1) genetically acts downstream of MPK17. We previously showed that mutants defective in either MPK17 or PMD1 fail to proliferate peroxisomes in response to NaCl stress. Here, we show that, unlike their abnormal NaCl responses, mpk17 and pmd1 mutants display wild type responses to other stresses known to alter peroxisome proliferation, suggesting that plants distinguish among peroxisome division-inducing stresses and alter the peroxisome division pathway based on the stress applied.