Hydrogen sulfide ameliorates cadmium chloride injury in seedlings of Malus hupehensis by reducing influx and accumulation of cadmium in roots

The seedling of Malus hupehensis were treated with cadmium chloride (CdCl₂) and hydrogen sulfide donor, NaHS (sodium hydrosulfide), in the hydroponics system.
The cadmium ion flow in the roots was measured in the living state, and the cadmium content, the respiration rate and the malondialdehyde (MDA) content in the roots were investigated and analyzed.
The results showed that NaHS could reduce the cadmium ions influx and rate of cadmium absorption by roots, decrease the cadmium content in roots and maintain the respiration rate of root in Malus hupehensis under CdCl₂ treatment.
The increase of content of MDA in roots and leaves caused by CdCl₂ was reduced by NaHS. This indicates that the hydrogen sulfide can alleviate cadmium damage to seedlings by reducing the influx and the accumulation of cadmium in roots.

XXX International Horticultural Congress IHC2018: International Symposium on Fruit and Vegetables for Processing, International Symposium on Quality and Safety of Horticultural Products and VII International Symposium on Human Health Effects of Fruits and Vegetables

Y.G. Li, W.W. Zhang, H.Q. Yang

hydrogen sulfide, cadmium, ion flow, Malus hupehensis, roots

https://doi.org/10.17660/ActaHortic.2020.1292.26