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Review
. 2021 Feb 23;10(2):410.
doi: 10.3390/plants10020410.

Elevated CO2 and Reactive Oxygen Species in Stomatal Closure

Xiaonan Ma  1 , Ling Bai  1
Affiliations
Review

Elevated CO2 and Reactive Oxygen Species in Stomatal Closure

Xiaonan Ma et al. Plants (Basel). .

Abstract

Plant guard cell is essential for photosynthesis and transpiration. The aperture of stomata is sensitive to various environment factors. Carbon dioxide (CO2) is an important regulator of stomatal movement, and its signaling includes the perception, transduction and gene expression. The intersections with many other signal transduction pathways make the regulation of CO2 more complex. High levels of CO2 trigger stomata closure, and reactive oxygen species (ROS) as the key component has been demonstrated function in this regulation. Additional research is required to understand the underlying molecular mechanisms, especially for the detailed signal factors related with ROS in this response. This review focuses on Arabidopsis stomatal closure induced by high-level CO2, and summarizes current knowledge of the role of ROS involved in this process.

Keywords: CO2; ROS; stomatal movement.

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Schematic model of CO2-induced stomatal closure.
See this image and copyright information in PMC

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