Arsenic Sequestration in Iron Plaque, Its Accumulation and Speciation in Mature Rice Plants (Oryza Sativa L.)

Lancaster Environment Centre

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https://doi.org/10.1021/es060800v
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Arsenic Sequestration in Iron Plaque, Its Accumulation and Speciation in Mature Rice Plants (Oryza Sativa L.). / Liu, W.J.; Zhu, Y.G.; Hu, Y. et al.
In: Environmental Science and Technology, Vol. 40, No. 15, 2006, p. 40.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Liu, WJ, Zhu, YG, Hu, Y, Williams, P, Gault, AG, Meharg, AA, Charnock, JM & Smith, FA 2006, 'Arsenic Sequestration in Iron Plaque, Its Accumulation and Speciation in Mature Rice Plants (Oryza Sativa L.)', Environmental Science and Technology, vol. 40, no. 15, pp. 40. https://doi.org/10.1021/es060800v

APA

Liu, W. J., Zhu, Y. G., Hu, Y., Williams, P., Gault, A. G., Meharg, A. A., Charnock, J. M., & Smith, F. A. (2006). Arsenic Sequestration in Iron Plaque, Its Accumulation and Speciation in Mature Rice Plants (Oryza Sativa L.). Environmental Science and Technology, 40(15), 40. https://doi.org/10.1021/es060800v

Vancouver

Liu WJ, Zhu YG, Hu Y, Williams P, Gault AG, Meharg AA et al. Arsenic Sequestration in Iron Plaque, Its Accumulation and Speciation in Mature Rice Plants (Oryza Sativa L.). Environmental Science and Technology. 2006;40(15):40. doi: 10.1021/es060800v

Author

Liu, W.J. ; Zhu, Y.G. ; Hu, Y. et al. / Arsenic Sequestration in Iron Plaque, Its Accumulation and Speciation in Mature Rice Plants (Oryza Sativa L.). In: Environmental Science and Technology. 2006 ; Vol. 40, No. 15. pp. 40.

Bibtex

@article{38f37ef8d0e144de84aab10e5fcf5cf7,

title = "Arsenic Sequestration in Iron Plaque, Its Accumulation and Speciation in Mature Rice Plants (Oryza Sativa L.)",

abstract = "A compartmented soil-glass bead culture system was used to investigate characteristics of iron plaque and arsenic accumulation and speciation in mature rice plants with different capacities of forming iron plaque on their roots. X-ray absorption near-edge structure spectra and extended X-ray absorption fine structure were utilized to identify the mineralogical characteristics of iron plaque and arsenic sequestration in plaque on the rice roots. Iron plaque was dominated by (oxyhydr)oxides, which were composed of ferrihydrite (81−100%), with a minor amount of goethite (19%) fitted in one of the samples. Sequential extraction and XANES data showed that arsenic in iron plaque was sequestered mainly with amorphous and crystalline iron (oxyhydr)oxides, and that arsenate was the predominant species. There was significant variation in iron plaque formation between genotypes, and the distribution of arsenic in different components of mature rice plants followed the following order: iron plaque > root > straw > husk > grain for all genotypes. Arsenic accumulation in grain differed significantly among genotypes. Inorganic arsenic and dimethylarsinic acid (DMA) were the main arsenic species in rice grain for six genotypes, and there were large genotypic differences in levels of DMA and inorganic arsenic in grain.",

author = "W.J. Liu and Y.G. Zhu and Y. Hu and Paul Williams and A.G. Gault and Meharg, {A. A.} and Charnock, {J. M.} and F.A. Smith",

year = "2006",

doi = "10.1021/es060800v",

language = "English",

volume = "40",

pages = "40",

journal = "Environmental Science and Technology",

issn = "0013-936X",

publisher = "American Chemical Society",

number = "15",

}

RIS

TY - JOUR

T1 - Arsenic Sequestration in Iron Plaque, Its Accumulation and Speciation in Mature Rice Plants (Oryza Sativa L.)

AU - Liu, W.J.

AU - Zhu, Y.G.

AU - Hu, Y.

AU - Williams, Paul

AU - Gault, A.G.

AU - Meharg, A. A.

AU - Charnock, J. M.

AU - Smith, F.A.

PY - 2006

Y1 - 2006

N2 - A compartmented soil-glass bead culture system was used to investigate characteristics of iron plaque and arsenic accumulation and speciation in mature rice plants with different capacities of forming iron plaque on their roots. X-ray absorption near-edge structure spectra and extended X-ray absorption fine structure were utilized to identify the mineralogical characteristics of iron plaque and arsenic sequestration in plaque on the rice roots. Iron plaque was dominated by (oxyhydr)oxides, which were composed of ferrihydrite (81−100%), with a minor amount of goethite (19%) fitted in one of the samples. Sequential extraction and XANES data showed that arsenic in iron plaque was sequestered mainly with amorphous and crystalline iron (oxyhydr)oxides, and that arsenate was the predominant species. There was significant variation in iron plaque formation between genotypes, and the distribution of arsenic in different components of mature rice plants followed the following order: iron plaque > root > straw > husk > grain for all genotypes. Arsenic accumulation in grain differed significantly among genotypes. Inorganic arsenic and dimethylarsinic acid (DMA) were the main arsenic species in rice grain for six genotypes, and there were large genotypic differences in levels of DMA and inorganic arsenic in grain.

AB - A compartmented soil-glass bead culture system was used to investigate characteristics of iron plaque and arsenic accumulation and speciation in mature rice plants with different capacities of forming iron plaque on their roots. X-ray absorption near-edge structure spectra and extended X-ray absorption fine structure were utilized to identify the mineralogical characteristics of iron plaque and arsenic sequestration in plaque on the rice roots. Iron plaque was dominated by (oxyhydr)oxides, which were composed of ferrihydrite (81−100%), with a minor amount of goethite (19%) fitted in one of the samples. Sequential extraction and XANES data showed that arsenic in iron plaque was sequestered mainly with amorphous and crystalline iron (oxyhydr)oxides, and that arsenate was the predominant species. There was significant variation in iron plaque formation between genotypes, and the distribution of arsenic in different components of mature rice plants followed the following order: iron plaque > root > straw > husk > grain for all genotypes. Arsenic accumulation in grain differed significantly among genotypes. Inorganic arsenic and dimethylarsinic acid (DMA) were the main arsenic species in rice grain for six genotypes, and there were large genotypic differences in levels of DMA and inorganic arsenic in grain.

U2 - 10.1021/es060800v

DO - 10.1021/es060800v

M3 - Journal article

VL - 40

SP - 40

JO - Environmental Science and Technology

JF - Environmental Science and Technology

SN - 0013-936X

IS - 15

ER -

Research

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