Special Issue on Plant Hydrogen Sulfide under Physiological and Adverse Environments
• 大类 : 生物 - 3区
• 小类 : 植物科学 - 3区
Hydrogen sulfide (H2S) has been emerged as a key player in the regulation of normal plant physiological processes, including seed germination, root morphogenesis, stomatal closure, photosynthesis, senescence, fruit ripening among others. The regulation of these plant processes by H2S is carried out through modulating plant’s machinery at cellular, sub-cellular and molecular levels. In addition, H2S acts as an important signaling molecule during plant responses to environmental stresses. It also acts as a redox regulator based on its capacity to interact with thiol(-SH) groups present in proteins, and improves the performance of plants under stress conditions such as salt, drought, heavy metals, extreme temperature, UV light, deficiency or excess of key nutrients, gaseous pollutants and other mechanical factors etc.
Survival of plants under the current climate changing scenario depends on their inherent capability of adaptation to unfavorable environmental challenges which is accomplished by well-coordinated molecular, physiological and biochemical processes. Of these, the cellular redox system is of primary importance. H2S has been shown to play a vital role in maintaining redox homeostasis by interacting with reactive oxygen and nitrogen species (ROS/RNS) which are integrated in complex signaling networks leading to the expression of stress-related genes and activation of plant’s defense system. Interactive action of H2S and ROS/RNS seems to be through regulating gene expression, alteration in enzymes activities, post-translational modifications of proteins, which can occur by metal nitrosylation, tyrosine nitration, S-nitrosation, and persulfidation.
However, it is unclear how H2S works in harmony with other signaling molecules during the regulation of physiological and biochemical processes. Therefore, it is need of the hour to explore that when, where and in which order these signaling molecules are produced in a particular situation and whether they are produced by independent or interdependent mechanisms.
The proposed research topic is expected to provide an insight of the current knowledge on the diverse aspects of H2S under physiological and challenging environmental conditions. We are hopeful, this volume would furnish the need of all those who are working or have interest in the above suggested topics.
Keeping the significance of the subject in the view, we are inviting renowned researchers, plant physiologists, working on the regulation of plant’s physiological processes in relation to H2S to contribute their research in the form of original manuscripts, reviews, mini-reviews, and opinion articles.