ArticleJournal of the science of food and agriculture2026
Exogenous γ-polyglutamic acid alleviates cadmium stress in rice through redox regulation and modulation of cadmium accumulation.
Article in Journal of the science of food and agriculture, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundCadmium (Cd) contamination severely threatens crop production and irreversibly damages plant growth, yield, and quality. The purpose of the present study was to investigate the effect of γ-polyglutamic acid (γ-PGA) on Cd tolerance in rice during the whole growth period.
methodsThe experiment consisted of four treatments: a control group with neither γ-PGA nor Cd; a group treated with γ-PGA alone; a group treated with Cd alone; and a group treated with both γ-PGA and Cd.
resultsResults showed that γ-PGA significantly alleviated Cd stress by promoting rice growth and immobilizing bioavailable Cd in soil. Physiological analysis showed that chlorophyll and shoot proline peaked at the tillering stage, while root proline peaked at the heading stage. Malondialdehyde (MDA) and H
conclusionResearch findings, therefore, suggest that γ-PGA can ameliorate Cd toxicity in rice, resulting in improved plant growth under metal stress. © 2026 Society of Chemical Industry.
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