Lehmann Ulrike, Schneider René
Plant Physiology Department, Institute of Biochemistry and Biology, University of Potsdam, 14476, Potsdam-Golm, Germany.
Collaborative Research Center 1644, University of Potsdam, 14476, Potsdam-Golm, Germany.
New Phytol. 2025 Sep;247(5):2034-2041. doi: 10.1111/nph.70327. Epub 2025 Jun 26.
Transitioning from aquatic to terrestrial life required specialized vascular tissues, with xylem enabling water transport and structural support. Vascular-related NAC (NAM, ATAF1/2, CUC2) domain (VND) transcription factors regulate xylem development by orchestrating secondary cell wall biosynthesis and programmed cell death. This review examines recent advances in understanding VND function in xylem vessel development, focusing on their structure, regulatory networks, downstream targets, and molecular events in Arabidopsis thaliana, while highlighting key open questions in vessel differentiation.
从水生生活向陆地生活的转变需要专门的维管组织，其中木质部负责水分运输和结构支撑。维管相关NAC（NAM、ATAF1/2、CUC2）结构域（VND）转录因子通过协调次生细胞壁生物合成和程序性细胞死亡来调节木质部发育。本文综述了在理解VND在拟南芥木质部导管发育中的功能方面的最新进展，重点关注其结构、调控网络、下游靶点和分子事件，同时强调了导管分化中的关键未解决问题。
