Hydrogen sulfide induces Ca2+ signal in guard cells by regulating reactive oxygen species accumulation

Chunmei Gong; Cong Shi; Xueting Ding; Cuixia Liu; Jisheng Li

doi:10.1080/15592324.2020.1805228

Hydrogen sulfide induces Ca²⁺ signal in guard cells by regulating reactive oxygen species accumulation

Plant Signal Behav. 2020 Nov 1;15(11):1805228. doi: 10.1080/15592324.2020.1805228. Epub 2020 Aug 10.

Authors

Chunmei Gong¹, Cong Shi², Xueting Ding², Cuixia Liu², Jisheng Li²

Affiliations

¹ College of Horticulture, Northwest A&F University , Yangling, Shaanxi, China.
² College of Life Sciences, Northwest A&F University , Yangling, Shaanxi, China.

Abstract

Hydrogen sulfide (H₂S) is an important gas signal molecule, but little is known about its signal mechanism. Ca²⁺ is an important second messenger in plant cells, and its fluctuation in the cytoplasm causes downstream physiological responses. Our previous study found that H₂S can induce the accumulation of hydrogen peroxide (H₂O₂). We also found that reactive oxygen species (ROS) can further induce the Ca²⁺ influx in guard cells by noninvasive micro-teat technology (NMT). This study confirmed that the accumulation of reactive oxygen species to induce Ca²⁺ signal in guard cells, resulting in stomatal closure. Thus, revealing a novel mechanism of H₂S promoting stomatal closure.

Keywords: Ca2+ influx; H2S; ROS; persulfidation.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Calcium Signaling / drug effects*
Calcium Signaling / physiology
Hydrogen Peroxide / metabolism
Hydrogen Sulfide / pharmacology*
Plant Stomata / drug effects
Plant Stomata / metabolism
Reactive Oxygen Species / metabolism*

Substances

Reactive Oxygen Species
Hydrogen Peroxide
Hydrogen Sulfide

Grants and funding

This work was supported by the National Natural Science Foundation of China [No. 31770648, 31400246], was partially supported by the Key Research and Development Program of Shaanxi [2020NY-190], Natural Science Foundation of Shaanxi Province [2018JM3017].