Mitigation of chromium toxicity in Arabidopsis thaliana by sulfur supplementation.
Ecotoxicol Environ Saf
; 182: 109379, 2019 Oct 30.
Article
en En
| MEDLINE
| ID: mdl-31254852
ABSTRACT
Chromium (Cr) contamination of soil and water has become a severe threat to human health. In this study, a series of experiments were conducted to examine the ameliorative effects of Cr toxicity, by exogenous 100⯵M sodium sulfate. Our team has examined the plant growth, Cr content, chlorophyll, antioxidant index and soluble protein content, before and after the addition of sodium sulfate. The results showed that the addition of sulfur (S) can reduce the enrichment of Cr and the content of malonyldialdehyde (MDA) under Cr stress. After addition of S in the culture solution, the biomass and roots length of Arabidopsis thaliana increased under Cr stress. Furthermore, the content of chlorophyll, superoxide dismutase (SOD), peroxidase (POD), catalase (CAT), glutathione (GSH), and soluble protein increased with the addition of sulfur. Transmission electron microscope observation point to that the chloroplasts can be damaged in leaf. All data demonstrate that S supplementation should help to alleviate the negative effects caused by both Cr(III) and Cr(VI) on Arabidopsis thaliana.
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Base de datos:
MEDLINE
Asunto principal:
Contaminantes del Suelo
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Sulfatos
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Cromo
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Arabidopsis
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Estrés Oxidativo
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Antioxidantes
Idioma:
En
Revista:
Ecotoxicol Environ Saf
Año:
2019
Tipo del documento:
Article