Gene Details:

• Gene ID: Zm00001eb297110
• Gene Symbol: ZmMPK20 mpk13
• Gene Name: MITOGEN-ACTIVATED PROTEIN KINASE 20
• Genome: Zm-B73-REFERENCE-NAM-5.0
• Species: Zea mays

Functional Descriptions:

• A high-temperature sensitive (hts) mutant from the ethyl methane sulfonate (EMS)-induced maize (Zea mays) mutant library that is linked to a single base change in MITOGEN-ACTIVATED PROTEIN KINASE 20 (ZmMPK20).
• Additional experiments showed that ZmMPK20 interacts with MAP KINASE KINASE 9 (ZmMKK9) and E3 ubiquitin ligase RPM1 INTERACTING PROTEIN 2 (ZmRIN2), a maize homolog of Arabidopsis (Arabidopsis thaliana) RIN2.
• ZmMKK9 phosphorylated ZmMPK20 and enhanced the inhibitory effect of ZmMPK20 on ZmRIN2 degradation.
• Maize MITOGEN-ACTIVATED PROTEIN KINASE 20 mediates high-temperature–regulated stomatal movement.
• Overexpression of ZmMPK20 decreased stomatal apertures, water loss rate, and enhanced plant thermotolerance.
• The ZmMKK9–ZmMPK20–ZmRIN2 cascade negatively regulates high-temperature–induced stomatal opening and balances water loss and leaf temperature, thus enhancing plant thermotolerance.

Function-related keywords:

• leaf ,  temperature ,  kinase ,  stomatal ,  protein-kinase ,  ubiquitin ,  water-loss ,  ubiquitin-e3-ligase ,  thermotolerance

Literature:

• Maize MITOGEN-ACTIVATED PROTEIN KINASE 20 mediates high-temperature-regulated stomatal movement.   DOI:  10.1093/plphys/kiad488 ;  PMID:  37725401
• Genome-wide identification and characterization of the MAPKKK, MKK, and MPK families in Chinese elite maize inbred line Huangzaosi   DOI:  10.1002/tpg2.20216 ;  PMID:  

Related News:

• Plant Physiol | 山东大学张伟课题组揭示高温诱导玉米气孔开放的调控新机制

Gene Resources:

• NCBI ID: LOC100191429
• UniProt accessions: A0A1D6MDU6 ,  B4F8S8

Sequences:

Source: Genetic information comes from the article