Disruption of a guard cell-expressed protein phosphatase 2A regulatory subunit, RCN1, confers abscisic acid insensitivity in Arabidopsis.

@article{Kwak2002DisruptionOA,
  title={Disruption of a guard cell-expressed protein phosphatase 2A regulatory subunit, RCN1, confers abscisic acid insensitivity in Arabidopsis.},
  author={June M. Kwak and J F Moon and Yoshiyuki Murata and Kazuyuki Kuchitsu and Nathalie Leonhardt and Alison DeLong and Julian I Schroeder},
  journal={The Plant cell},
  year={2002},
  volume={14 11},
  pages={2849-61}
}
Pharmacological studies have led to a model in which the phytohormone abscisic acid (ABA) may be positively transduced via protein phosphatases of the type 1 (PP1) or type 2A (PP2A) families. However, pharmacological evidence also exists that PP1s or PP2As may function as negative regulators of ABA signaling. Furthermore, recessive disruption mutants in protein phosphatases that function in ABA signal transduction have not yet been identified. A guard cell-expressed PP2A gene, RCN1, which had… CONTINUE READING