Ma Biao, Ma Tian, Xian Wenhao, Hu Bin, Chu Chengcai
Guangdong Laboratory for Lingnan Modern Agriculture, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, South China Agricultural University, Guangzhou, 510642, China.
J Integr Plant Biol. 2023 Feb;65(2):399-407. doi: 10.1111/jipb.13355. Epub 2022 Dec 31.
The stress hormone ethylene plays a key role in plant adaptation to adverse environmental conditions. Nitrogen (N) is the most quantitatively required mineral nutrient for plants, and its availability is a major determinant for crop production. Changes in N availability or N forms can alter ethylene biosynthesis and/or signaling. Ethylene serves as an important cellular signal to mediate root system architecture adaptation, N uptake and translocation, ammonium toxicity, anthocyanin accumulation, and premature senescence, thereby adapting plant growth and development to external N status. Here, we review the ethylene-mediated morphological and physiological responses and highlight how ethylene transduces the N signals to the adaptive responses. We specifically discuss the N-ethylene relations in rice, an important cereal crop in which ethylene is essential for its hypoxia survival.
应激激素乙烯在植物适应不利环境条件中起关键作用。氮（N）是植物需求量最大的矿质营养元素，其有效性是作物产量的主要决定因素。氮有效性或氮形态的变化会改变乙烯生物合成和/或信号传导。乙烯作为一种重要的细胞信号，介导根系结构适应、氮吸收与转运、铵毒性、花青素积累和早衰，从而使植物生长发育适应外部氮状况。在此，我们综述乙烯介导的形态和生理反应，并强调乙烯如何将氮信号转化为适应性反应。我们特别讨论了水稻中的氮-乙烯关系，水稻是一种重要的谷类作物，其中乙烯对其缺氧存活至关重要。
