School of Agriculture and Biotechnology, Shenzhen Campus, Sun Yat-sen University, Shenzhen 518107, China.
School of Agriculture and Biotechnology, Shenzhen Campus, Sun Yat-sen University, Shenzhen 518107, China.
Plant Sci. 2025 Jan;350:112299. doi: 10.1016/j.plantsci.2024.112299. Epub 2024 Oct 24.
Copper (Cu) is a vital trace element necessary for plants growth and development. It acts as a co-factor for enzymes and plays a crucial role in various physiological processes, including photosynthesis, respiration, antioxidant systems, and hormone signaling transduction. However, excessive amounts of Cu can disrupt normal physiological metabolism, thus hindering plant growth, development, and reducing yield. In recent years, the widespread abuse of Cu-containing fungicides and industrial Cu pollution has resulted in significant soil contamination. Therefore, it is of utmost importance to uncover the adverse effects of excessive Cu on plant growth and delve into the molecular mechanisms employed by plants to counteract the stress caused by excessive Cu. Recent studies have confirmed the inhibitory effects of excess Cu on mineral nutrition, chlorophyll biosynthesis, and antioxidant enzyme activity. This review systematically outlines the ways in which plants tolerate excessive Cu stress and summarizes them into eight Cu-tolerance strategies. Furthermore, it highlights the necessity for further research to comprehend the molecular regulatory mechanisms underlying the responses to excessive Cu stress.
铜（Cu）是植物生长和发育所必需的重要微量元素。它作为酶的辅助因子，在光合作用、呼吸作用、抗氧化系统和激素信号转导等各种生理过程中起着至关重要的作用。然而，过量的铜会破坏正常的生理代谢，从而阻碍植物的生长、发育，并降低产量。近年来，含铜杀菌剂的广泛滥用和工业铜污染导致土壤受到严重污染。因此，揭示过量铜对植物生长的不良影响，并深入研究植物用来对抗过量铜胁迫的分子机制至关重要。最近的研究证实了过量铜对矿物质营养、叶绿素生物合成和抗氧化酶活性的抑制作用。本综述系统地概述了植物耐受过量铜胁迫的方式，并将其总结为 8 种铜耐受策略。此外，还强调了进一步研究以了解植物对过量铜胁迫响应的分子调控机制的必要性。
