Article
COP1 jointly modulates cytoskeletal processes and electrophysiological responses required for stomatal closure.
Molecular plant - 1 Sept 2014
Khanna Rajnish, Li Junlin, Tseng Tong-Seung, Schroeder Julian I, Ehrhardt David W, Briggs Winslow R
Abstract excerpt
Reorganization of the cortical microtubule cytoskeleton is critical for guard cell function. Here, we investigate how environmental and hormonal signals cause these rearrangements and find that COP1, a RING-finger-type ubiquitin E3 ligase, is required for degradation of tubulin, likely by the 26S proteasome. This degradation is required for stomatal closing. In addition to regulating the cytoskeleton, we show...
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