Department of Agronomy, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, China.
Plant Signal Behav. 2012 Jan;7(1):28-30. doi: 10.4161/psb.7.1.18404.
The Arabidopsis thaliana trichome development is a model system for understanding various aspects of plant cell development and differentiation. The C2H2 zinc finger proteins GIS, GIS2, and ZFP8 play important roles in controlling trichome initiation. In our recent study, we reported that a new C2H2 zinc finger protein, ZINC FINGER PROTEIN 5 (ZFP5), controls trichome cell development through GA signaling. ZFP5 acts upstream of GIS gene family and key trichome initiation regulators, and ZFP8 is the direct target gene of ZFP5. Here we show that ZFP5 encodes a protein functionally equivalent to GIS and GIS2 in controlling trichome initiation. Furthermore, similar to GIS2, ZFP5 is not involved in trichome branching.
拟南芥表皮毛发育是研究植物细胞发育和分化的一个理想模型。C2H2 锌指蛋白 GIS、GIS2 和 ZFP8 在调控表皮毛起始中发挥着重要作用。在我们最近的研究中，我们报道了一个新的 C2H2 锌指蛋白 ZINC FINGER PROTEIN 5（ZFP5）通过 GA 信号调控表皮毛细胞发育。ZFP5 作用于 GIS 基因家族和关键表皮毛起始调控因子的上游，并且 ZFP8 是 ZFP5 的直接靶基因。我们在这里表明，ZFP5 编码的蛋白在调控表皮毛起始中与 GIS 和 GIS2 具有同等功能。此外，与 GIS2 相似，ZFP5 不参与表皮毛分枝。
