Mitogen-activated protein kinase 6 mediates nuclear translocation of ORE3 to promote ORE9 gene expression in methyl jasmonate-induced leaf senescence

Mitogen-activated protein kinase 6 mediates nuclear translocation of ORE3 to promote ORE9 gene expression in methyl jasmonate-induced leaf senescence

© The Author 2015. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.

Bibliographische Detailangaben
Veröffentlicht in:Journal of experimental botany. - 1985. - 67(2016), 1 vom: 14. Jan., Seite 83-94
1. Verfasser: Zhang, Yushan (VerfasserIn)
Weitere Verfasser: Liu, Jian, Chai, Jinyu, Xing, Da
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2016
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Arabidopsis thaliana CEND EIN3 ORE3/EIN2 ORE9 methyl jasmonate mitogen-activated protein kinase 6 senescence mehr... Acetates Arabidopsis Proteins Cyclopentanes DNA-Binding Proteins EIN2 protein, Arabidopsis EIN3 protein, Arabidopsis Nuclear Proteins Oxylipins Receptors, Cell Surface Transcription Factors 900N171A0F MPK6 protein, Arabidopsis EC 2.7.11.24 Mitogen-Activated Protein Kinases
Beschreibung
Zusammenfassung:© The Author 2015. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
Methyl jasmonate (MeJA) is a potent promoter of plant senescence. ORESARA3 (ORE3)/ETHYLENE INSENSITIVE2 (EIN2), a protein similar to the members of the disease-related Nramp metal transporter family, is involved in cross-talk among several senescence processes related to abscisic acid, ethylene, MeJA, age and darkness. Nevertheless, the mechanism involved in the regulation of ORE3/EIN2 in exogenous MeJA-induced leaf senescence remains unclear. The C-terminal end of ORE3/EIN2 (CEND) was cleaved from ORE3/EIN2 located in the endoplasmic reticulum and then transferred to the nucleus during MeJA-induced senescence. Further analyses showed that mitogen-activated protein kinase 6 (MPK6) promoted CEND cleavage and nuclear translocation. Nuclear CEND accumulated ETHYLENE INSENSITIVE3 (EIN3), a transcription factor that accelerates MeJA-induced leaf senescence wherein ORESARA9 (ORE9) expression was suppressed in ein3, ore3, and mpk6 mutant plants. ChIP experiments revealed that EIN3 bound directly to the ORE9 promoter and this binding was enhanced in MeJA-induced leaf senescence. This study revealed the effect of the signalling pathway involving MPK6-ORE3-EIN3-ORE9 on regulating leaf senescence and provided insights into the mechanism of MeJA in promoting leaf senescence in Arabidopsis thaliana
Beschreibung:Date Completed 23.09.2016
Date Revised 10.12.2019
published: Print-Electronic
Citation Status MEDLINE
ISSN:1460-2431
DOI:10.1093/jxb/erv438