Foliar application of NaHS alleviates Cd toxicity in soybean plants through regulation of Glutathione metabolism
Year: 2024
Type: article
Abstract: Hydrogen sulfide (H2S) regulates many critical processes of plants and responses against abiotic stresses such as heavy metals. In the present study, the effect of sodium hydrogen sulfide (NaHS) as H2S donor (0, and 50μM) was investigated in soybean plants under Cd stress (0, and 50μM). These experiments were done according to the factorial design on the basis of completely randomized design with three replications. Cd exposure reduced growth parameters and relative water content. Cd also caused a reduced photosynthetic pigment, higher ion ions leakage and higher oxidative stress in terms of lipid peroxidation and H2O2 production. These results manifested the toxicity of applied Cd concentrations on soybean plants. However, foliar application of NaHS improved the shoot length and fresh weight on Cd-stressed plants. NaHS, also alleviated toxic effects of Cd on ions leakage, relative water content and photosynthetic pigments of leaves. The activity of glutathione reductase and genes belonging to the family of glutathione synthetase including glutathione synthetase, chloroplastic-like (LOC102663288) (GS288), glutathione synthetase, chloroplastic (LOC100778473) (GS473) and homoglutathione synthetase (Gene ID: 547989) (HGS) was also upraised by NaHS. However, the expression of glutathione synthetase, and chloroplastic-like glutathione synthetase (LOC100813419) (GS419) adjusted to reduced content by NaHS on Cd-stressed plants. These results confirm the regulatory effect of applied NaHS on physiological parameters and glutathione metabolism at molecular levels on soybean plants.
Source: Plant Stress
Institution: Graduate University of Advanced Technology
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $1,690
Award: G2172900495
OpenAlex ID: W4390893929