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Literature summary for 2.7.11.24 extracted from

  • Han, S.; Wang, C.; Wang, W.; Jiang, J.
    Mitogen-activated protein kinase 6 controls root growth in Arabidopsis by modulating Ca2+-based Na+ flux in root cell under salt stress (2014), J. Plant Physiol., 171, 26-34.
    View publication on PubMed

Protein Variants

Protein Variants Comment Organism
additional information generation of the T-DNA insertion lines mpk6-2 (Salk 073907) and mpk6-3(Salk 127507), that are loss-of-function mutants, the mutants are less sensitive to NaCl or Na-glutamate, but not to KCl or mannitol, as compared with that of wild-type seedlings Arabidopsis thaliana

Localization

Localization Comment Organism GeneOntology No. Textmining
plasma membrane
-
Arabidopsis thaliana 5886
-

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana Q39026
-
-
Arabidopsis thaliana Col-0 Q39026
-
-

Source Tissue

Source Tissue Comment Organism Textmining
root
-
Arabidopsis thaliana
-
seedling
-
Arabidopsis thaliana
-

Synonyms

Synonyms Comment Organism
At2g43790
-
Arabidopsis thaliana
mitogen-activated protein kinase 6
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Arabidopsis thaliana
MPK6
-
Arabidopsis thaliana

General Information

General Information Comment Organism
malfunction root elongation in seedlings of the loss-of-function mutants mpk6-2 and mpk6-3 is less sensitive to NaCl or Na-glutamate, but not to KCl or mannitol, as compared with that of wild-type seedlings. The tolerance of mpk6 to Na+ toxicity is Ca2+-dependent. At the plasma membrane, increased concentrations of NaCl increase the inward Na+-conducted currents while decreasing the outward Na+-conducted currents in wild-type root cells, attended by a positive shift in membrane potential. In mpk6 mutant root cells, NaCl significantly increases outward but not inward Na+-conducted currents, accompanied by a negative shift in membrane potential. Mutant mpk6 decreases NaCl-induced the Na+ accumulation by modifying PM Na+ flux in root cells. Mutant mpk6 accumulates less Na+ in response to NaCl because of the increased cytosolic Ca2+ level in root cells; thus, its root elongation is less inhibited than that of WT by NaCl Arabidopsis thaliana
physiological function mitogen-activated protein kinase 6 controls root growth in Arabidopsis thaliana by modulating Ca2+-based Na+ flux in root cell under salt stress Arabidopsis thaliana