In VitroOtherHighlightedHydrogen Evolution and Absorption Phenomena in the Plasma Membrane of Vigna radiata and Capsicum annuumMHID-32438852021Journal of Plant Growth RegulationXin Zhang, Fei Xie, Zhao Zhang, Yao Mawulikplimi Adzavon, Zehua Su, Qinghui Zhao, et al.Molecular hydrogen has been shown to exert beneficial effects on plant growth and abiotic stress tolerance, however, the exact mechanism has not yet been fully elucidated. H2 is able to diffuse directly across the plasma membrane, which is the first barrier between H2 and cells. It is possible that H2 may exert its biological effects on plant cells by interacting with PM. Hydrogenases can catalyze