Gene Details:

  • Gene ID:
  • Gene Symbol: NtMPK4
  • Gene Name: mitogen-activated protein kinase4
  • Genome:
  • Species: Nicotiana tabacum

Functional Descriptions:

  • Silencing of NtMPK4 impairs CO2-induced stomatal closure, activation of anion channels and cytosolic Ca2+signals in Nicotiana tabacum guard cells.
  • Here, the role of NtMPK4 in light-induced stomatal opening was studied, as silencing of this MAP kinase stimulates stomatal opening.
  • Both the darkness-induced anion channel activation and Ca2+ signals were repressed in NtMPK4-silenced guard cells. These data show that CO2 and darkness can activate anion channels in a Ca2+-independent manner, but the anion channel activity is enhanced by parallel increases in the cytosolic Ca2+ concentration.
  • NtMPK4 plays an essential role in CO2- and darkness-induced activation of guard-cell anion channels, through Ca2+-independent as well as Ca2+-dependent signalling pathways.

Literature:

Gene Resources:

Orthologs:

Sequences:

  • CDS Sequence:
  • Protein Sequence: