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Reactive Oxygen Species in the Regulation of Stomatal Movements
| Content Provider | Oxford Academic |
|---|---|
| Author | Sierla, Maija Waszczak, Cezary Vahisalu, Triin Kangasjärvi, Jaakko |
| Copyright Year | 2016 |
| Abstract | Guard cells form stomatal pores that optimize photosynthetic carbon dioxide uptake with minimal water loss. Stomatal movements are controlled by complex signaling networks that respond to environmental and endogenous signals. Regulation of stomatal aperture requires coordinated activity of reactive oxygen species (ROS)-generating enzymes, signaling proteins, and downstream executors such as ion pumps, transporters, and plasma membrane channels that control guard cell turgor pressure. Accumulation of ROS in the apoplast and chloroplasts is among the earliest hallmarks of stomatal closure. Subsequent increase in cytoplasmic Ca2+ concentration governs the activity of multiple kinases that regulate the activity of ROS-producing enzymes and ion channels. In parallel, ROS directly regulate the activity of multiple proteins via oxidative posttranslational modifications to fine-tune guard cell signaling. In this review, we summarize recent advances in the role of ROS in stomatal closure and discuss the importance of ROS in regulation of signal amplification and specificity in guard cells. |
| Related Links | https://academic.oup.com/plphys/article-pdf/171/3/1569/38117981/plphys_v171_3_1569.pdf |
| Ending Page | 1580 |
| Starting Page | 1569 |
| File Format | |
| ISSN | 00320889 |
| e-ISSN | 15322548 |
| DOI | 10.1104/pp.16.00328 |
| Journal | Plant Physiology |
| Issue Number | 3 |
| Volume Number | 171 |
| Language | English |
| Publisher | Oxford Academic |
| Publisher Date | 2016-07-06 |
| Access Restriction | Open |
| Subject Keyword | Biological Sciences Plant Sciences and Forestry Science and Mathematics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Physiology Plant Science |
