Abstract：
Plants are vulnerable to a number of abiotic and biotic stresses that cause a substantial decrease in the production of plants. Plants respond to different environmental stresses by experiencing a series of molecular and physiological changes coordinated by various phytohormones. The use of phytohormones to alleviate stresses has recently achieved increasing interest. Brassinosteroids (BRs) are a group of polyhydroxylated steroidal phytohormones that are required for the development, growth, and productivity of plants. These hormones are involved in regulating the division, elongation, and differentiation of numerous cell types throughout the entire plant life cycle. BR studies have drawn the interest of plant scientists over the last few decades due to their flexible ability to mitigate different environmental stresses. BRs have been shown in numerous studies to have a positive impact on plant responses to various biotic and abiotic stresses. BR receptors detect the BR at the cell surface, triggering a series of phosphorylation events that activate the central transcription factor (TF) Brassinazole-resistant 1 (BZR1), which regulates the transcription of BR-responsive genes in the nucleus. This review discusses the discovery, occurrence, and chemical structure of BRs in plants. Furthermore, their role in the growth and development of plants, and against various stresses, is discussed. Finally, BR signaling in plants is discussed.
摘要：
植物易受许多非生物和生物胁迫的影响，这些胁迫导致植物产量的大幅下降。植物通过经历一系列由各种植物激素协调的分子和生理变化来响应不同的环境胁迫。使用植物激素减轻压力最近引起了越来越多的兴趣。油菜素类固醇（BRs）是一组发育所需的多羟基类固醇植物激素，增长,和植物的生产力。这些激素参与调节分裂，伸长率,以及在整个植物生命周期中多种细胞类型的分化。在过去的几十年中，BR研究由于其缓解不同环境压力的灵活能力而引起了植物科学家的兴趣。许多研究表明，BRs对植物对各种生物和非生物胁迫的反应具有积极影响。BR受体在细胞表面检测BR，触发一系列激活中枢转录因子(TF)抗油菜素(BZR1)的磷酸化事件，调节核中BR反应基因的转录。这篇综述讨论了这一发现，发生,和植物BRs的化学结构。此外，它们在植物生长和发育中的作用，面对各种压力，正在讨论。最后,讨论了植物中的BR信号传导。
