植物离区发育及调控信号的多样性研究进展

植物器官脱落发生的特定区域叫做离区。植物离区发育及其研究主要集中在番茄、水稻、拟南芥等模式作用与重要的经济作物上。本文主要从植物离区脱落发生的多样性及其调控信号的多样性上进行综述，植物离区脱落的主要形式有：花器官脱落、叶脱落、果实脱落、种子脱落、开裂区脱落、侧根脱落等；主要的调控信号有花发育信号、乙烯与生长素信号、细胞凋亡信号、ROS信号等。旨在为今后经济作物离区相关基因研究提供理论依据和基础，并对今后离区相关研究的前景进行展望。

Research Progress on Diversities of Plant Abscission Zone Development and Regulation Signaling

A particular area in plant that occurs plant organ shedding called as abscission zone (AZ). Nowadays, the researches of plant AZ development mainly focus on modern plants tomato, rice and Arabidopsis thaliana and other important economic crops. The diversities of plant organ abscission and regulation signaling were reviewed in this paper. The main forms of plants organ shedding including flower organ shedding, leaf abscission, fruits shedding, seeds shedding, craze zone, lateral root abscission, etc. the signaling pathways involved in the process of organ shedding were summarized, including flower growth signaling, ethylene and auxin signaling, programmed cell death signaling, ROS signaling, etc. This paper will supply some references for the research on tropical crops abscission zone.