Hydrogen sulfide: the shutter button of stomata in plants
Hydrogen sulfide: the shutter button of stomata in plants
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硫化氢：植物气孔的快门按钮
DOI：
10.1007/s11427-016-0265-3
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发表时间：
2016-11-01
影响因子：
9.1
通讯作者：
Pei, Yanxi
中科院分区：
文献类型：
--
作者：
Jin, Zhuping;Pei, Yanxi
在过去的几十年里，硫化氢（H2S）被认为是第三种气体递质，其生物学功能与先前确定的两种对应物一氧化氮（NO）和一氧化碳（CO）相似，数百年来一直被认为是一种具有令人不快的臭鸡蛋气味的有毒气体。在认识到其在哺乳动物中的巨大药理学潜力之后（Mani等人，2015），H2S也被揭示为参与正常植物生理过程调节的关键参与者。它也被发现是一个重要的信使在植物防御反应对各种生物和非生物胁迫在生理浓度。位于细胞质、线粒体和叶绿体等各种亚细胞区室中的H2S合成酶在植物中比在动物中更丰富，并显示出时空表达模式（Jin和Pei，2015）。眼睛是心灵的窗户。气孔是植物的“眼睛”，在不同的环境条件下积极参与细胞的各个方面。气孔的开放或关闭响应于环境刺激，如大气湿度、光、大气CO2浓度和植物激素。据报道，H2S通过诱导气孔关闭来响应干旱胁迫。
In the past few decades, Hydrogen sulfide (H2S) has been newly witnessed as a third gasotransmitter with similar biological functions to its two previously identified counterparts nitric oxide (NO) and carbon monoxide (CO), after being recognized as a toxic gas with an unpleasant rotten-egg smell for hundreds of years. Following the recognition of its great pharmacological potential in mammalian (Mani et al., 2015), H2S has also been revealed as a crucial player involved in the regulation of physiological processes in normal plants. It has also been found to be a critical messenger in plant defense responses against a variety of biotic and abiotic stresses at physiological concentrations. The H2S-synthesizing enzymes, located in various subcellular compartments such as the cytoplasm, mitochondria and chloroplast, are more abundant in plants than in animals and show a spatial-temporal expression pattern (Jin and Pei, 2015). Eyes are the windows to the soul. Stomata, pores on the leaf surface, which are the “eyes” of plants, have been demonstrated to actively engage in various cellular aspects under different changing environmental conditions. Stomata open or close in response to environmental stimuli such as atmospheric humidity, light, atmospheric CO2 concentration and plant hormones. It has been reported that H2S responds to drought stress by inducing stomatal closure in