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The Interplay between Hydrogen Sulfide and Phytohormone Signaling Pathways under Challenging Environments
Muhammad Saad Shoaib Khan1, Faisal Islam1, Yajin Ye2
1International Genome Center, Jiangsu University, Zhenjiang 212013, China.
International Journal of Molecular Sciences
|April 23, 2022
Summary
Hydrogen sulfide (H₂S) is a key plant signaling molecule that enhances stress tolerance. It modifies proteins via persulfidation, enabling rapid adaptation to environmental changes.
Area of Science:
- Plant Biology
- Biochemistry
- Environmental Science
Background:
- Hydrogen sulfide (H₂S) is an essential gaseous signaling molecule in plants.
- It plays a crucial role in plant-environment interactions and stress responses.
- H₂S is endogenously produced through sulfate/cysteine reduction pathways.
Purpose of the Study:
- To review the molecular mechanisms of H₂S-induced cellular adjustments in plants.
- To discuss the interactions between H₂S and various signaling pathways.
- To highlight the impact of H₂S on protein post-translational modifications (PTMs) under stress.
Main Methods:
- Literature review of current research on H₂S in plants.
- Analysis of H₂S's role in redox regulation and protein modification.
- Examination of H₂S crosstalk with other signaling molecules.
Main Results:
- H₂S ameliorates various plant stress conditions by modulating the cellular redox network.
- H₂S-mediated persulfidation rapidly modifies proteins, facilitating signaling responses.
- H₂S interacts with other signals and regulators to activate adaptive pathways.
Conclusions:
- H₂S is vital for plant adaptation to environmental stresses through PTMs and signaling network modulation.
- Understanding H₂S interactions offers strategies to mitigate stress impacts on plants.
- Further research is needed to fully elucidate H₂S signaling complexities.
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