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Comparison of Translocation and Transformation from Soil to Rice and Metabolism in Rats for Four Arsenic Species

文献类型： 外文期刊

作者： Wang, Xu 1 ; Geng, Anjing 1 ; Dong, Yan 5 ; Fu, Chongyun; Li, Hanmin 3 ; Zhao, Yarong 4 ; Li, Qing X. 2 ; Wang, Fuhua 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Publ Monitoring Ctr Agroprod, Guangzhou 510640, Guangdong, Peoples R China

2.Univ Hawaii Manoa, Dept Mol Biosci & Bioengn, Honolulu, HI 96822 USA

3.Huazhong Agr Univ, Guangdong Acad Agr Sci, Res Ctr Trace Elements Guangzhou, Guangzhou 510640, Guangdong, Peoples R China

4.Minist Agr, Key Lab Testing & Evaluat Agroprod Safety & Qual, Guangzhou 510640, Guangdong, Peoples R China

5.Guangzhou Univ

关键词： arsenic;metabolism;transformation;translocation

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）

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收录情况： SCI

摘要： Arsenic (As) is ubiquitously present in the environment. The toxicity of As is related to its forms. This study was designed to compare the translocation and transformation of four As species from soil to rice, and metabolism in rats for four arsenic species. A set of 26550 data was obtained from pot experiments of rice plants grown in soil fortified with four As species, and 4050 data were obtained from rat experiments in which 81 rats were administered with the four As species. The total As in grain from the methyl arsenate fortified soil was 6.1, 4.9, and 5.2 times that from As(III), As(V), and dimethyl arsenate fortified soil, respectively. The total As in husk was 1.2–7.8 times greater than that in grain. After oral administration of each As species to rats, 83–96% was accumulatively excreted via feces and urine, while 0.1–16% was detected in blood. The translocation, transformation, and metabolism of different forms of arsenic vary greatly.

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