植物光信号途径重要新调控因子TZP的研究进展

TZP (TANDEM ZINC-FINGER/PLUS3)是近年来鉴定到的一个光信号转导途径新组分, 在光介导的植物生长发育过程中发挥重要调控作用。TZP不仅负调控蓝光信号途径, 参与光敏色素B (phyB)介导的开花调控过程, 还参与调控phyA在体内的蛋白质磷酸化。对TZP生化活性和作用机制的深入研究, 不仅有助于进一步完善光信号调控网络, 也可为设计和培育具有耐密理想株型及高光效作物新品种提供理论依据。该文系统总结了TZP在植物光信号途径中发挥的重要调控作用, 并提出未来TZP功能研究的重要问题。

Research Progress on TZP,a Novel Key Regulator of Light Signal Transduction in Plants

TANDEM ZINC-FINGER/PLUS3 (TZP) is a recently characterized novel key component of light signal transduction in plants. Accumulating evidence indicates that TZP plays an important role in multiple processes of light-mediated plant growth and development. TZP acts as a negative regulator of blue light signaling, regulates phytochrome B (phyB)-dependent control of photoperiodic flowering, and is required for the phosphorylation of the far-red light photoreceptor phyA in vivo. Further investigation and full elucidation of the biochemical activity and regulatory mechanisms of TZP will not only provide new insights into the light signaling networks, but also facilitate the design and breeding of new crop varieties with ideal plant architecture and more efficient usage of solar energy. In this review, we systematically summarized the current understanding of the role of TZP in regulating light signaling pathways in plants, and discussed the important questions for further study on TZP functions.