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Article Addendum
Receptor-like protein kinases, BAK1 and BKK1, regulate a light-dependent cell-death control pathway
Kai He, Xiaoping Gou, Rebecca A. Powell, Hui Yang, Tong Yuan, Zhongxin Guo and Jia Li
volume 3 | issue 10
october 2008Pages: 813 - 815
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BAK1 and BKK1 are two functionally redundant leucine-rich repeat receptor-like protein kinases (LRR-RLKs) involved in brassinosteroid signal transduction by their direct interactions with the BR receptor, BRI1. Recent studies from our group and others indicated that the two RLKs also play critical roles in regulating pathogen-related and pathogen-unrelated cell-death controls. Genetic data suggest that the two kinases are essential for plant survival because the double mutants show spontaneous cell-death and seedling lethality phenotypes. Physiological analyses further suggest that the cell-death of the double mutant is triggered by the light, as dark-grown seedlings do not show any cell-death symptoms. These observations indicate that BAK1 and BKK1 regulate a novel signaling pathway to detoxify or to limit the production of a yet unknown toxin/toxins produced by plants under light conditions.
Addendum to: He K, Gou X, Yuan T, Lin H, Asami T, Yoshida S, Russell SD, Li J. BAK1 and BKK1 regulates brassinosteroid-dependent growth and brassinosteroid-independent cell-death pathways. Curr Biol; 1109-15.
Authors
Kai He
University of Oklahoma
Xiaoping Gou
University of Oklahoma
Rebecca A. Powell
University of Oklahoma
Hui Yang
University of Oklahoma
Tong Yuan
University of Oklahoma
Zhongxin Guo
University of Oklahoma
Jia Li
University of Oklahoma