Physiological and biochemical responses in a cadmium accumulator of traditional Chinese medicine Ligusticum sinense cv. Chuanxiong under cadmium condition

Abstract

1. Under 25 μM Cd, it was the hormesis effect on the growth of L. Chuanxiong.

2. Seedlings increased the thickness of root cell wall to chelate and fixate Cd.

3. Seedlings enhanced NH₄⁺ absorption and assimilation, thereby increasing chlorophyll content.

4. Seedlings mainly reduced oxidative stress caused by Cd stress through the GSH/GSSG cycle.

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Funding

Natural Science Foundation of Sichuan Province(2024NSFSC1831); China Postdoctoral Science Foundation(2023M730381); National Natural Sciences Foundation of China(82373986); Key R&D Projects of Sichuan Provincial Department of Science and Technology(22ZDYF1861)