Effect of iron (Fe2+) concentration in soil on arsenic uptake in rice plant (Oryza sativa L.) when grown with arsenate [As(V)] and dimethylarsinate (DMA)

Publisher:
Springer
Publication Type:
Journal article
Citation:
Rahman, Mohammad et al. 2013, 'Effect of iron (Fe2+) concentration in soil on arsenic uptake in rice plant (Oryza sativa L.) when grown with arsenate [As(V)] and dimethylarsinate (DMA)', Water, Air, & Soil Pollution, vol. 224, pp. 1623-1-1623-12.
Issue Date:
2013
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Being predominant inorganic arsenicals, methylarsenicals also occur in anaerobic paddy soils. Therefore, this study investigated the influence of Fe2+ concentrations and arsenic speciation [arsenate (As(V)) and dimethylarsinate (DMA)] in paddy soils on arsenic uptake in rice plant. Rice seedlings were grown in soil irrigated with a Murashige and Skoog (MS) growth solution containing As(V) or DMA with or without 1.8 mM Fe2+ in excess to the background concentration of total iron (0.03 mM) in the soil. Arsenic concentration in rice roots increased initially and then decreased gradually when the seedlings were grown with excess Fe2+ and As(V). In contrast, arsenic concentration in the roots increased steadily (P?
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