EDDS-Enhanced Phytoremediation of Cd-Zn Co-Contaminated Soil by Sedum lineare: Mechanisms of Metal Uptake, Soil Improvement, and Microbial Community Modulation.

ABSTRACT: Soil co-contamination with cadmium (Cd) and zinc (Zn) poses serious threats to environmental safety and public health. This study investigates the enhancement effect and underlying mechanism of the biodegradable chelator Ethylenediamine-N,N'-disuccinic acid (EDDS) on phytoremediation of Cd-Zn contaminated soil using Sedum lineare. The results demonstrate that EDDS application (3.65 g·L^-1) effectively alleviated metal-induced phytotoxicity by enhancing chlorophyll synthesis, activating antioxidant enzymes (catalase and dismutase), regulating S-nitrosoglutathione reductase activity, and promoting leaf protein synthesis, thereby improving photosynthetic performance and cellular integrity. The combined treatment significantly increased the bioavailability of Cd and Zn in soil

SUBMITTER: Shen H 

PROVIDER: S-EPMC12845202 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature