Epistatic analyses demonstrated that the expression of constitutively active MKK4, MKK5, or YDA driven by the RGI2 promoter can rescue the short-root phenotype of the rgi1/2/3/4/5 mutant. Taken together, these results suggest that the YDA-MKK4/MKK5-MPK3/MPK6 cascade functions downstream of...
Epistatic analyses demonstrated that the expression of constitutively active MKK4, MKK5, or YDA driven by the RGI2 promoter can rescue the short root phenotype of the rgi1/2/3/4/5 mutant. Taken together, these results suggest that the YDA-MKK4/MKK5-MPK3/MPK6 cascade functions downstream of...
11,14 For example, in Arabidopsis, AtMKK2 phosphorylates AtMPK4 and AtMPK6 to promote cold and salt stress signaling15; in apple, MKK4 interacts with MPK3 to promote the response to Glomerella leaf spot pathogenesis16; and in potato, StMKK1 interacts with and phosphorylates StMPK7 to ...