農業における分子状水素の役割：植物ストレス耐性と生産性向上への応用
This review examines the expanding body of research on molecular hydrogen (H₂) as an agricultural tool. H₂, commonly delivered via hydrogen-saturated water, has been shown to alleviate multiple plant stresses, including salinity, heavy metal exposure, and drought conditions. Beyond stress mitigation, H₂ application is associated with improvements in plant growth, productivity, and post-harvest durability. Given the global pressures of population growth and food security concerns, environmentally benign strategies such as H₂ supplementation are gaining attention. The review discusses how both endogenous and exogenously applied H₂ influences plant cellular functions and stress tolerance mechanisms. While the precise molecular pathways through which H₂ acts in plant systems remain incompletely characterized, its safety profile and ease of application support its potential integration into future agricultural and horticultural practices.
Exogenously supplied H₂, primarily via hydrogen-saturated water, modulates plant cellular functions to reduce damage from salinity, heavy metals, and drought stress; however, the precise intracellular molecular mechanisms remain to be fully elucidated.
Hydrogen-rich water is a low-risk delivery route, but the achievable systemic hydrogen dose is bounded. For clinical applications, inhalation is the most efficient route; inhalation, however, carries explosion risk, and concentration matters (empirical LFL of 10% applies to inhalation environments; high-concentration devices are documented in the Consumer Affairs Agency accident database and are not recommended).
See also:
https://h2-papers.org/en/papers/34420086