《植物生理学报》 2016, 52(1): 37-46

信号分子硫化氢的代谢及其在植物耐热性形成中的作用

闵雄, 周志豪, 李忠光^*

云南师范大学生命科学学院, 生物能源持续开发利用教育部工程研究中心, 云南省生物质能与环境生物技术重点实验室, 昆明650092

通信作者：李忠光；E-mail: zhongguang_li@163.com

摘　要：

高温是限制植物生长、发育和产量的主要胁迫因子。硫化氢(H₂S)是继一氧化碳(CO)和一氧化氮(NO)后植物体内的第3种内源气体信号分子, 参与种子萌发、生长发育、气孔运动, 以及耐逆性包括耐热性形成等多种生理过程。本文结合最新的研究进展, 在阐明H₂S代谢的基础上, 综述了H₂S诱导的耐热性与抗氧化系统、渗透调节物质、钙信使系统和热激蛋白的关系, 以及H₂S诱导耐热性形成过程中与其他信号分子如NO、过氧化氢、CO、脱落酸、水杨酸等的相互作用, 指出H₂S是植物耐热性形成的重要信使分子, 并提出未来的研究方向。

关键词：硫化氢信号; 耐热性; 钙信使系统; 渗透调节物质; 抗氧化系统; 热激蛋白

收稿：2015-11-11   修定：2015-11-26

资助：国家自然科学基金(31360057)和云南师范大学博士启动基金(01200205020503099)。

The metabolism of signal molecule hydrogen sulfide and its role in the acquisition of heat tolerance in plants

MIN Xiong, ZHOU Zhi-Hao, LI Zhong-Guang^*

Key Laboratory of Biomass Energy and Environmental Biotechnology of Yunnan Province, Engineering Research Center of Sustainable Development and Utilization of Biomass Energy, Ministry of Education, School of Life Sciences, Yunnan Normal University, Kunming 650092, China

Corresponding author: LI Zhong-Guang; E-mail: zhongguang_li@163.com

Abstract:

Abstract: High temperature is a major factor that limits growth, development and production in plants. Hydrogen sulfide (H₂S) is a third endogenous gaseous signal molecule after carbon monoxide (CO) and nitric oxide (NO) in plants, involving in many physiological processes such as seed germination, growth and development, stomatal movement, and stress tolerance including heat tolerance. On the basis of current research advance, in this review, H₂S metabolism, H₂S-induced heat tolerance and involvement of antioxidant system, osmolyte, calcium messenger system and heat shock proteins, as well as signal crosstalk between H₂S and other signal molecules like NO, hydrogen peroxide, CO, abscisic acid, salicylic acid in the acquisition of heat tolerance induced by H₂S were summarized, which indicated that H₂S was an important signal molecule in the acquisition of heat tolerance of plants, and research direction in the future was prospected.

Key words: hydrogen sulfide signal; heat tolerance; calcium messenger system; osmotic adjustment substance; antioxidant system; heat shock protein