PCH1 and PCHL Directly Interact with PIF1, Promote Its Degradation, and Inhibit Its Transcriptional Function during Photomorphogenesis
Cheng MC, Enderle B, Kathare PK, Islam R, Hiltbrunner A, Huq E.
Mol Plant. 2020 Mar 2;13(3):499-514
We have presiouly shown that PCH1 and PCHL regulate light signalling in plants by delaying inactivation of the photoreceptor phytochrome B. Here, we demonstrate that PCH1 and PCHL also inhibit negative regulators of light signalling by enhancing their interaction with phytochrome B.