Su Jialin, Liu Yumei, Han Fengqing, Gao Fuxin, Gan Fangyi, Huang Ke, Li Zhansheng
College of Horticulture, Hunan Agricultural University, Changsha 410128, China.
State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
Biology (Basel). 2024 Dec 10;13(12):1033. doi: 10.3390/biology13121033.
Roots are fundamental to the growth, development, and survival of plants. Beyond anchoring the plant, roots absorb water and nutrients, supporting the plant's ability to grow and function normally. Root systems, originating from the apical meristem, exhibit significant diversity depending on the plant species. ROS are byproducts of aerobic metabolism, present in both above- and below-ground plant tissues. While ROS were once considered merely harmful byproducts of oxygen metabolism, they are now recognized as critical signaling molecules that regulate plant growth and development. Under stress conditions, plants produce elevated levels of ROS, which can inhibit growth. However, moderate ROS levels act as signals that integrate various regulatory pathways, contributing to normal plant development. However, there is still a lack of comprehensive and systematic research on how ROS precisely regulate root growth and development. This review provides an overview of ROS production pathways and their regulatory mechanisms in plants, with a particular focus on their influence on root development.
根对于植物的生长、发育和存活至关重要。除了固定植物外，根还吸收水分和养分，支持植物正常生长和发挥功能的能力。根系起源于顶端分生组织，根据植物种类的不同表现出显著的多样性。活性氧（ROS）是有氧代谢的副产物，存在于植物地上和地下组织中。虽然活性氧曾一度仅被视为氧代谢的有害副产物，但现在它们被认为是调节植物生长和发育的关键信号分子。在胁迫条件下，植物会产生高水平的活性氧，这会抑制生长。然而，适度的活性氧水平作为整合各种调节途径的信号，有助于植物正常发育。然而，关于活性氧如何精确调节根的生长和发育，仍然缺乏全面系统的研究。本综述概述了植物中活性氧的产生途径及其调节机制，特别关注它们对根发育的影响。
