生物技术通报 ›› 2016, Vol. 32 ›› Issue (10): 18-26.doi: 10.13560/j.cnki.biotech.bull.1985.2016.10.004

• 特约综述 • 上一篇    下一篇

H2S参与植物气孔运动调节与逆境响应过程研究进展

车永梅, 侯丽霞, 孙艳君, 刘新   

  1. 青岛农业大学生命科学学院 山东省高校植物生物技术重点实验室,青岛 266109
  • 收稿日期:2016-07-27 出版日期:2016-10-25 发布日期:2016-10-12
  • 作者简介:车永梅,女,副教授,研究方向:植物逆境生理;E-mail:yongmeiche@163.com
  • 基金资助:
    国家自然科学基金项目(31572107,31170237)

Hydrogen Sulfide Functions in Regulation of Stomatal Movement and Stress Response in Plant

CHE Yong-mei, HOU Li-xia, SUN Yan-jun, LIU Xin   

  1. Key Laboratory of Plant Biotechnology in Universities of Shandong Province,College of Life Sciences,Qingdao Agricultural University,Qingdao 266109
  • Received:2016-07-27 Published:2016-10-25 Online:2016-10-12

摘要: H2S是近年来确认的植物气态信号分子,内源H2S介导了乙烯和ABA等激素诱导气孔关闭的过程,参与植物对盐、干旱及重金属胁迫等多种非生物逆境的应答过程。H2S与Ca2+、H2O2和NO等信号分子相互作用调节气孔运动;外源H2S通过调节抗氧化酶活性及其基因表达,促进脯氨酸等渗透调节物质积累,提高植物的抗逆性。就近年来有关植物体内H2S的来源,其在气孔运动调控和胁迫应答中的作用及机制进行阐述。

关键词: H2S, 气孔运动, 逆境响应, 信号转导

Abstract: Hydrogen sulfide(H2S),a recently characterized gaseous signal molecule,mediates stomatal closure induced by abscisic acid(ABA),ethylene(ETH)etc.,and participates in plant responses to adverse environmental stresses such as salt,drought and heavy metal stresses. H2S interacts with Ca2+,H2O2 and nitric oxide(NO)signal molecules in regulation of stomatal movement. Exogenous H2S improves the resistance to diverse stresses by increasing antioxidant enzyme activity,up-regulating gene expression,and promoting accumulation of compatible substances such as proline and soluble sugars in plants. In this paper,the latest research progresses in the functions and molecular mechanisms of H2S in the regulation of stomatal movement and response to diverse stresses are summarized and discussed.

Key words: H2S, stomatal movement, stress response, signal transduction