Crosstalk between Hydrogen Sulfide and Other Signal Molecules Regulates Plant Growth and Development
Hydrogen sulfide (H<sub>2</sub>S), once recognized only as a poisonous gas, is now considered the third endogenous gaseous transmitter, along with nitric oxide (NO) and carbon monoxide (CO). Multiple lines of emerging evidence suggest that H<sub>2</sub>S plays positive roles...
Main Authors: | , , , |
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Format: | Article |
Language: | English |
Published: |
MDPI AG
2020-06-01
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Series: | International Journal of Molecular Sciences |
Subjects: | |
Online Access: | https://www.mdpi.com/1422-0067/21/13/4593 |
Summary: | Hydrogen sulfide (H<sub>2</sub>S), once recognized only as a poisonous gas, is now considered the third endogenous gaseous transmitter, along with nitric oxide (NO) and carbon monoxide (CO). Multiple lines of emerging evidence suggest that H<sub>2</sub>S plays positive roles in plant growth and development when at appropriate concentrations, including seed germination, root development, photosynthesis, stomatal movement, and organ abscission under both normal and stress conditions. H<sub>2</sub>S influences these processes by altering gene expression and enzyme activities, as well as regulating the contents of some secondary metabolites. In its regulatory roles, H<sub>2</sub>S always interacts with either plant hormones, other gasotransmitters, or ionic signals, such as abscisic acid (ABA), ethylene, auxin, CO, NO, and Ca<sup>2+</sup>. Remarkably, H<sub>2</sub>S also contributes to the post-translational modification of proteins to affect protein activities, structures, and sub-cellular localization. Here, we review the functions of H<sub>2</sub>S at different stages of plant development, focusing on the S-sulfhydration of proteins mediated by H<sub>2</sub>S and the crosstalk between H<sub>2</sub>S and other signaling molecules. |
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ISSN: | 1661-6596 1422-0067 |