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1337505 
Journal Article 
An arsenic-contaminated field trial to assess the uptake and translocation of arsenic by genotypes of rice 
Lei, M; Tie, B; Zeng, M; Qing, P; Song, Z; Williams, PN; Huang, Y 
In Press 
Yes 
Environmental Geochemistry and Health
ISSN: 0269-4042
EISSN: 1573-2983 
35 
379-390 
English 
Compared to other cereals, rice has particular strong As accumulation. Therefore, it is very important to understand As uptake and translocation among different genotypes. A field study in Chenzhou city, Hunan province of China, was employed to evaluate the effect of arsenic-contaminated soil on uptake and distribution in 34 genotypes of rice (including unpolished rice, husk, shoot, and root). The soil As concentrations ranged from 52.49 to 83.86 mg kg(-1), with mean As concentration 64.44 mg kg(-1). The mean As concentrations in rice plant tissues were different among the 34 rice genotypes. The highest As concentrations were accumulated in rice root (196.27-385.98 mg kg(-1) dry weight), while the lowest was in unpolished rice (0.31-0.52 mg kg(-1) dry weight). The distribution of As in rice tissue and paddy soil are as follows root ≫ soil > shoot > husk > unpolished rice. The ranges of concentrations of inorganic As in all of unpolished rice were from 0.26 to 0.52 mg kg(-1) dry weight. In particular, the percentage of inorganic As in the total As was more than 67 %, indicating that the inorganic As was the predominant species in unpolished rice. The daily dietary intakes of inorganic As in unpolished rice ranged from 0.10 to 0.21 mg for an adult, and from 0.075 to 0.15 mg for a child. Comparison with tolerable daily intakes established by FAO/WHO, inorganic As in most of unpolished rice samples exceeded the recommended intake values. The 34 genotypes of rice were classified into four clusters using a criteria value of rescaled distance between 5 and 10. Among the 34 genotypes, the genotypes II you 416 (II416) with the lowest enrichment of As and the lowest daily dietary intakes of inorganic As could be selected as the main cultivar in As-contaminated field. 
IRIS
• Arsenic Hazard ID
     1. Initial Lit Search
          PubMed
          PubMed
          Considered New
          PubMed
          Considered New
     2. Lit Search Updates through Oct 2015
          PubMed
          Considered
     4. Considered through Oct 2015
     6. Cluster Filter through Oct 2015
     7. Other Studies through Oct 2015
          Exposure Assessment
• Arsenic (Inorganic)
     1. Literature
          PubMed
          Lit search updates through Oct 2015
     3. Hazard ID Screening
          Other potentially supporting studies
     5. Susceptibility Screening
          Excluded/Not relevant
• Arsenic Susceptibility
     1. Susceptibility Literature Screening
          Keyword Search
     2. Excluded
          Not Relevant