文献类型： 外文期刊
第一作者： Anwar, Ali
作者： Anwar, Ali;Liu, Yumei;Dong, Rongrong;Bai, Longqiang;Yu, Xianchang;Li, Yansu;Liu, Yumei
作者机构：
关键词： Brassinosteroids; Physiology; Antioxidants; Biotic and abiotic stress
期刊名称：BIOLOGICAL RESEARCH （ 影响因子：5.612； 五年影响因子：4.781 ）
ISSN： 0716-9760
年卷期： 2018 年 51 卷
页码：
收录情况： SCI
摘要： The negative effects of environmental stresses, such as low temperature, high temperature, salinity, drought, heavy metal stress, and biotic stress significantly decrease crop productivity. Plant hormones are currently being used to induce stress tolerance in a variety of plants. Brassinosteroids (commonly known as BR) are a group of phytohormones that regulate a wide range of biological processes that lead to tolerance of various stresses in plants. BR stimulate BRASSINAZOLE RESISTANCE 1 (BZR1)/BRI1-EMS SUPPRESSOR 1 (BES1), transcription factors that activate thousands of BR-targeted genes. BR regulate antioxidant enzyme activities, chlorophyll contents, photosynthetic capacity, and carbohydrate metabolism to increase plant growth under stress. Mutants with BR defects have shortened root and shoot developments. Exogenous BR application increases the biosynthesis of endogenous hormones such as indole-3-acetic acid, abscisic acid, jasmonic acid, zeatin riboside, brassinosteroids (BR), and isopentenyl adenosine, and gibberellin (GA) and regulates signal transduction pathways to stimulate stress tolerance. This review will describe advancements in knowledge of BR and their roles in response to different stress conditions in plants.
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