Reactive oxygen species signaling and stomatal movement: Current updates and future perspectives
Reactive oxygen species (ROS), a by-product of aerobic metabolism were initially studied in context to their damaging effect but recent decades witnessed significant advancements in understanding the role of ROS as signaling molecules. Contrary to earlier views, it is becoming evident that ROS produ...
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doaj-efcdc8d7a8d0415aad725f4c1e0494e12020-11-25T03:00:19ZengElsevierRedox Biology2213-23172017-04-0111213218Reactive oxygen species signaling and stomatal movement: Current updates and future perspectivesRachana Singh0Parul Parihar1Samiksha Singh2Rohit Kumar Mishra3Vijay Pratap Singh4Sheo Mohan Prasad5Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Allahabad, Allahabad 211002, IndiaRanjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Allahabad, Allahabad 211002, IndiaRanjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Allahabad, Allahabad 211002, IndiaRanjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Allahabad, Allahabad 211002, IndiaGovt. Ramanuj Pratap Singhdev Post Graduate College, Baikunthpur, Koriya 497335, Chhattisgarh, India; Corresponding authors.Ranjan Plant Physiology and Biochemistry Laboratory, Department of Botany, University of Allahabad, Allahabad 211002, India; Corresponding authors.Reactive oxygen species (ROS), a by-product of aerobic metabolism were initially studied in context to their damaging effect but recent decades witnessed significant advancements in understanding the role of ROS as signaling molecules. Contrary to earlier views, it is becoming evident that ROS production is not necessarily a symptom of cellular dysfunction but it might represent a necessary signal in adjusting the cellular machinery according to the altered conditions. Stomatal movement is controlled by multifaceted signaling network in response to endogenous and environmental signals. Furthermore, the stomatal aperture is regulated by a coordinated action of signaling proteins, ROS-generating enzymes, and downstream executors like transporters, ion pumps, plasma membrane channels, which control the turgor pressure of the guard cell. The earliest hallmarks of stomatal closure are ROS accumulation in the apoplast and chloroplasts and thereafter, there is a successive increase in cytoplasmic Ca2+ level which rules the multiple kinases activity that in turn regulates the activity of ROS-generating enzymes and various ion channels. In addition, ROS also regulate the action of multiple proteins directly by oxidative post translational modifications to adjust guard cell signaling. Notwithstanding, an active progress has been made with ROS signaling mechanism but the regulatory action for ROS signaling processes in stomatal movement is still fragmentary. Therefore, keeping in view the above facts, in this mini review the basic concepts and role of ROS signaling in the stomatal movement have been presented comprehensively along with recent highlights. Keywords: Calcium, Guard Cell, Reactive oxygen species, Stomatal movement, Transcription factorshttp://www.sciencedirect.com/science/article/pii/S2213231716302968 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Rachana Singh Parul Parihar Samiksha Singh Rohit Kumar Mishra Vijay Pratap Singh Sheo Mohan Prasad |
spellingShingle |
Rachana Singh Parul Parihar Samiksha Singh Rohit Kumar Mishra Vijay Pratap Singh Sheo Mohan Prasad Reactive oxygen species signaling and stomatal movement: Current updates and future perspectives Redox Biology |
author_facet |
Rachana Singh Parul Parihar Samiksha Singh Rohit Kumar Mishra Vijay Pratap Singh Sheo Mohan Prasad |
author_sort |
Rachana Singh |
title |
Reactive oxygen species signaling and stomatal movement: Current updates and future perspectives |
title_short |
Reactive oxygen species signaling and stomatal movement: Current updates and future perspectives |
title_full |
Reactive oxygen species signaling and stomatal movement: Current updates and future perspectives |
title_fullStr |
Reactive oxygen species signaling and stomatal movement: Current updates and future perspectives |
title_full_unstemmed |
Reactive oxygen species signaling and stomatal movement: Current updates and future perspectives |
title_sort |
reactive oxygen species signaling and stomatal movement: current updates and future perspectives |
publisher |
Elsevier |
series |
Redox Biology |
issn |
2213-2317 |
publishDate |
2017-04-01 |
description |
Reactive oxygen species (ROS), a by-product of aerobic metabolism were initially studied in context to their damaging effect but recent decades witnessed significant advancements in understanding the role of ROS as signaling molecules. Contrary to earlier views, it is becoming evident that ROS production is not necessarily a symptom of cellular dysfunction but it might represent a necessary signal in adjusting the cellular machinery according to the altered conditions. Stomatal movement is controlled by multifaceted signaling network in response to endogenous and environmental signals. Furthermore, the stomatal aperture is regulated by a coordinated action of signaling proteins, ROS-generating enzymes, and downstream executors like transporters, ion pumps, plasma membrane channels, which control the turgor pressure of the guard cell. The earliest hallmarks of stomatal closure are ROS accumulation in the apoplast and chloroplasts and thereafter, there is a successive increase in cytoplasmic Ca2+ level which rules the multiple kinases activity that in turn regulates the activity of ROS-generating enzymes and various ion channels. In addition, ROS also regulate the action of multiple proteins directly by oxidative post translational modifications to adjust guard cell signaling. Notwithstanding, an active progress has been made with ROS signaling mechanism but the regulatory action for ROS signaling processes in stomatal movement is still fragmentary. Therefore, keeping in view the above facts, in this mini review the basic concepts and role of ROS signaling in the stomatal movement have been presented comprehensively along with recent highlights. Keywords: Calcium, Guard Cell, Reactive oxygen species, Stomatal movement, Transcription factors |
url |
http://www.sciencedirect.com/science/article/pii/S2213231716302968 |
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