Effect of external iron and arsenic species on chelant-enhanced iron bioavailability and arsenic uptake in rice (Oryza sativa L.)

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dc.contributor.author Rahman, Mohammad en_US
dc.contributor.author Rahman, M. en_US
dc.contributor.author Kadohashi, K. en_US
dc.contributor.author Maki, Teruya en_US
dc.contributor.author Hasegawa, Hiroshi en_US
dc.contributor.editor en_US
dc.date.accessioned 2012-10-12T03:33:17Z
dc.date.available 2012-10-12T03:33:17Z
dc.date.issued 2011 en_US
dc.identifier 2010005008 en_US
dc.identifier.citation Rahman Mohammad et al. 2011, 'Effect of external iron and arsenic species on chelant-enhanced iron bioavailability and arsenic uptake in rice (Oryza sativa L.)', Pergamon, vol. 84, no. 4, pp. 439-445. en_US
dc.identifier.issn 0045-6535 en_US
dc.identifier.other C1UNSUBMIT en_US
dc.identifier.uri http://hdl.handle.net/10453/18088
dc.description.abstract This study was conducted to investigate the effect of external iron status and arsenic species on chelant-enhanced iron bioavailability and arsenic uptake. Rice seedlings (Oryza sativa L.) were used as model plant, and were grown in artificially contaminated sandy soils irrigated with Murashige and Skoog (MS) culture solution. Arsenate uptake in roots and shoots of rice seedlings were affected significantly (p > 0.05) while dimethylarsinic acid (DMAA) was not by the additional iron and chelating ligand treatments. Regardless of iron concentrations in the soil solution, HIDS increased arsenic uptake for roots more than EDTA and EDDS. Chelating ligands and arsenic species also influenced iron uptake in rice roots. Irrespective of arsenic species, HIDS was found to be more effective in the increase of iron bioavailability and uptake in rice roots compared to other chelants. There was a significant positive correlation (r = 0.78, p < 0.05) between arsenate and iron concentrations in the roots of rice seedlings grown with or without additional iron indicating that arsenate inhibit iron uptake. In contrast, there was no correlation between iron and DMAA uptake in roots. Poor correlation between iron and arsenic in shoots indicated that iron uptake in shoots was neither affected by additional iron nor by arsenic species. Compared to the control, chelating ligands increased iron uptake in shoots of rice seedlings significantly (p < 0.05). Regardless of additional iron and arsenic species, iron uptake in rice shoots did not differed among EDTA, EDDS, and HIDS treatments. en_US
dc.language en_US
dc.publisher Pergamon en_US
dc.relation.hasversion Accepted manuscript version
dc.relation.isbasedon http://dx.doi.org/10.1016/j.chemosphere.2011.03.046 en_US
dc.rights NOTICE: this is the author’s version of a work that was accepted for publication in Chemosphere. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Chemosphere, Volume 84, Issue 4, July 2011, Pages 439–445 http://dx.doi.org/10.1016/j.chemosphere.2011.03.046
dc.title Effect of external iron and arsenic species on chelant-enhanced iron bioavailability and arsenic uptake in rice (Oryza sativa L.) en_US
dc.parent Chemosphere en_US
dc.journal.volume 84 en_US
dc.journal.number 4 en_US
dc.publocation Oxford, UK en_US
dc.identifier.startpage 439 en_US
dc.identifier.endpage 445 en_US
dc.cauo.name SCI.Faculty of Science en_US
dc.conference Verified OK en_US
dc.for 050200 en_US
dc.personcode 112851 en_US
dc.personcode 0000070303 en_US
dc.personcode 0000070304 en_US
dc.personcode 0000070240 en_US
dc.personcode 0000070288 en_US
dc.percentage 50 en_US
dc.classification.name Environmental Science and Management en_US
dc.classification.type FOR-08 en_US
dc.edition en_US
dc.custom en_US
dc.date.activity en_US
dc.location.activity en_US
dc.description.keywords Arsenic; Iron; Bioavailability; Phytoextraction; Chelating ligands; Rice (Oryza sativa L.) en_US


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