Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Review
, 6 (2), 196-203

Mitogen-activated Protein Kinase Signaling in Plants Under Abiotic Stress

Affiliations
Review

Mitogen-activated Protein Kinase Signaling in Plants Under Abiotic Stress

Alok Krishna Sinha et al. Plant Signal Behav.

Abstract

Mitogen-activated protein kinase cascade is evolutionarily conserved signal transduction module involved in transducing extracellular signals to the nucleus for appropriate cellular adjustment. This cascade consists essentially of three components, a MAPK kinase kinase (MAPKKK), a MAPK kinase (MAPKK) and a MAPK connected to each other by the event of phosphorylation. These kinases play various roles in intra- and extra-cellular signaling in plants by transferring the information from sensors to responses. Signaling through MAP kinase cascade can lead to cellular responses including cell division, differentiation as well as responses to various stresses. MAPK signaling has also been associated with hormonal responses. In plants, MAP kinases are represented by multigene families and are involved in efficient transmission of specific stimuli and also involved in the regulation of the antioxidant defense system in response to stress signaling. In the current review we summarize and investigate the participation of MAPKs as possible mediators of various abiotic stresses in plants.

Figures

Figure 1
Figure 1
Schematic representation of cross-talk among different plant MAP kinase signaling components. The scheme of general signal transduction is shown on the left. The homologs in Arabidopsis (At), tobacco (Nt), maize (Zm), pea (Ps) and Chorispora bungeana (Cb) are shown. Solid arrows show proven pathways; dashed arrows indicate postulated pathways; question marks indicate unknown cascade components.
Figure 2
Figure 2
Differential expression of rice MAP kinase genes in response to various abiotic stress and hormonal treatment. (A) Heat map showing the expression patterns of mitogen activated protein kinase (MAPK), MAPK kinase (MAP2K) and MAP2 kinase (MAP3K) genes in rice under abiotic stress and hormonal treatment. The microarray data publicly available at GEO database under the series accession numbers GSE6901 (abiotic stress) and GSE5167 (auxin and cytokinin treatment) were used for expression analysis. The color scale is give at the bottom. (B) Deduced MAPK cascade from heat map under abiotic stress and hormone treatment.

Similar articles

See all similar articles

Cited by 89 PubMed Central articles

See all "Cited by" articles

Publication types

LinkOut - more resources

Feedback