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The research investigates how exogenous organic matter influences cadmium uptake and tolerance in rice cultivars.

Exogenous organic matter modulates cadmium uptake in rice (Oryza sativa L.): Linking root surface chemistry to metal translocation and tolerance

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The research investigates how exogenous organic matter influences cadmium uptake and tolerance in rice cultivars.
Used hydroponic systems to analyze two rice cultivars under biochar and organic acid treatments.
Measured root elongation, cadmium translocation, and root surface charge characteristics.
Profiled root exudates under cadmium stress to determine chemical changes.
WYJ24 rice cultivar showed greater cadmium tolerance with higher root elongation compared to FD88.
Cadmium complexation was significantly higher in WYJ24 (70.7%) than in FD88 (22.9%) after 10 days.
Biochar amendments increased root surface negative charge, correlating with cadmium absorption and exchange.
Organic acids exhibited different effects on cadmium adsorption between the two cultivars.

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Examines how exogenous organic matter affects cadmium tolerance in rice cultivars, suggesting potential remediation strategies.

Huan et al. (2026) studied this question.

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