数据资源: 林业专题资讯

Abscisic acid signaling and crosstalk with phytohormones in regulation of environmental stress responses



编号 040035805

推送时间 20220829

研究领域 森林培育 

年份 2022 

类型 期刊 

语种 中文

标题 Abscisic acid signaling and crosstalk with phytohormones in regulation of environmental stress responses

来源期刊 Environmental and Experimental Botany

第358期

发表时间 20220701

关键词 Abscisic acid;  Phytohormones cross talk;  Seed germination;  Stress regulation;  Stress signaling;  Stomatal regulation; 

摘要 Frequently changing environmental conditions pose unwarranted threat to plants life and impose serious penalties in terms of arrested growth, metabolism and ultimately the yield. Being rooted, plants cannot avoid the stresses but equipped well to survive and produce. Among the stress modulatory responses, an isoprenoid phytohormone abscisic acid (ABA) proved its significance by regulating the growth, development and stress responses as a signaling mediator. Abscisic acid also controls various physiological, biochemical and molecular processes in plants under non-stress conditions. It regulates seed dormancy, stomatal closure, leaf abscission, senescence, fruit ripening, legume-Rhizobium symbiosis and a number of stress related functions. In stressful conditions, ABA perception and signaling controls downstream responses at transcriptional and posttranscriptional level. The present review discusses ABA homeostasis, its perception and signaling along with physiological and molecular responses of ABA under critical conditions including drought, heavy metal, salinity, and temperature stress is specified. The recent molecular diagnostics reported through high throughput technologies reveal the role of ABA in regulation of different physiological mechanisms through integration of environmental cues via its positive and negative crosstalks with other phytohormones (like auxin, gibberellin, cytokinin, ethylene, salicylic acid, brassinosteroids, jasmonic acid, strigolactones, and melatonin) and potent chemical messengers like polyamines, sugars, NO and H2S mediated by several receptors, transporters, bZIP TFs and regulatory proteins has also been focused in detail.

服务人员 孙小满

服务院士 尹伟伦

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