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)

Rahman, M; Hasegawa, H; Maki, T; Lim, R

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)

Rahman, M Hasegawa, H Maki, T Lim, R

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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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Field	Value	Language
dc.contributor.author	Rahman, M	en_US
dc.contributor.author	Hasegawa, H	en_US
dc.contributor.author	Maki, T	en_US
dc.contributor.author	Lim, R	en_US
dc.date.accessioned	2014-04-27T18:05:43Z
dc.date.available	2014-04-27T18:05:43Z
dc.date.issued	2013	en_US
dc.identifier	2012004424	en_US
dc.identifier.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.	en_US
dc.identifier.issn	0049-6979	en_US
dc.identifier.other	C1	en_US
dc.identifier.uri	http://hdl.handle.net/10453/27433
dc.description.abstract	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?<?0.01) when the seedlings were grown without excess Fe2+ and As(V). When the form of the arsenic was DMA, total arsenic (tAs) concentration in rice roots increased gradually (P?<?0.01) and was not affected by the addition of excess Fe2+ in the soil. When rice seedlings were grown with As(V), tAs concentration in rice roots and shoots increased steadily (P?<?0.01) for gradual increase of Fe2+ concentrations in soil. However, tAs concentration in roots and shoots was independent of Fe2+ concentrations in soil when the form of arsenic was DMA. The tAs concentrations in rice shoots also increased significantly (P?<?0.01) with increasing exposure time for both As(V) and DMA. Thus, Fe2+ concentrations in soil affect arsenic uptake in rice plant depending on the speciation of arsenic	en_US
dc.publisher	Springer	en_US
dc.relation.ispartof	Water, Air, & Soil Pollution	en_US
dc.relation.ispartof	Verified OK	en_US
dc.relation.isbasedon	http://dx.doi.org/10.1007/s11270-013-1623-0	en_US
dc.subject	Arsenate [As(V)] Dimethylarsinate (DMA) Ferrous iron (Fe2+) Rice seedling Soil	en_US
dc.subject.classification	Other Chemical Sciences	en_US
dc.title	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)	en_US
dc.type	Journal article
utslib.citation.volume	224	en_US
utslib.location	Netherlands	en_US
utslib.citation.startpage	1623-1	en_US
utslib.citation.endpage	1623-12	en_US
utslib.identifier.org	SCI.School of the Environment	en_US
utslib.for	039900	en_US
utslib.percentage	50	en_US
utslib.copyright.status	closed_access

Abstract:

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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