Characterization of a calcium/calmodulin-dependent protein kinase homolog from maize roots showing light-regulated gravitropism

@article{Lu1996CharacterizationOA,
  title={Characterization of a calcium/calmodulin-dependent protein kinase homolog from maize roots showing light-regulated gravitropism},
  author={Ying-Tang Lu and Hiroyoshi Hidaka and Lewis J. Feldman},
  journal={Planta},
  year={1996},
  volume={199},
  pages={18-24}
}
Roots of many species respond to gravity (gravitropism) and grow downward only if illuminated. This light-regulated root gravitropism is phytochrome-dependent, mediated by calcium, and inhibited by KN-93, a specific inhibitor of calcium/calmodulin-dependent protein kinase II (CaMK II). A cDNA encoding MCK1, a maize homolog of mammalian CaMK, has been isolated from roots of maize (Zea mays L.). The MCK1 gene is expressed in root tips, the site of perception for both light and gravity. Using the… CONTINUE READING