Background With continuing industrial pollution and other human activities, the problem of heavy metal pollution in the environment is becoming more and more serious. Because heavy metal toxicity does not only inhibit plant growth but also causes many adverse health conditions in humans, heavy metal pollution poses a great challenge across the global. As a food security issue, how to minimize the influence of heavy metals stress on plants has become a major topic of research. This paper explores the mechanism of hydrogen sulfide (H 2 S) as a plant-signaling molecule, which participates in the response to heavy metal stress and enhances plant tolerance to various stresses. Conclusion Here, we reviewed research progress on the role of H 2 S in plant response to heavy metal stress and discussed the mechanism by which H 2 S alleviating heavy metal stress. Moreover, a future research direction is also proposed.

中文翻译：

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硫化氢在植物中的作用缓解重金属胁迫

背景技术随着工业污染和其他人类活动的不断进行，环境中的重金属污染问题越来越严重。由于重金属毒性不仅会抑制植物生长，还会对人类造成许多不利的健康状况，因此重金属污染在全球范围内构成了巨大挑战。作为粮食安全问题，如何最大限度地减少重金属胁迫对植物的影响已成为研究的重大课题。本文探讨了硫化氢（H 2 S）作为植物信号分子参与重金属胁迫响应和增强植物对各种胁迫耐受性的机制。结论在这里，综述了H 2 S在植物响应重金属胁迫中作用的研究进展，探讨了H 2 S减轻重金属胁迫的机制。此外，还提出了未来的研究方向。