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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Arsenic limits trace mineral nutrition (Selenium, Zinc, and Nickel) in Bangladesh rice grain
Environmental Science and Technology, Volume 43, No. 21, Year 2009
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Description
A reconnaissance of 23 paddy fields, from three Bangladesh districts, encompassing a total of 230 soil and rice plant samples was conducted to identify the extent to which trace element characteristics in soils and irrigation waters are reflected by the harvested rice crop. Field sites were located on two soil physiographic units with distinctly different As soil baseline and groundwater concentrations. For arsenic (As), both straw and grain trends closely fitted patterns observed for the soils and water. Grain concentration characteristics for selenium (Se), zinc (Zn), and nickel (Ni), however, were markedly different. Regressions of shoot and grain As against grain Se, Zn, and Ni were highly significant (P < 0.001), exhibiting a pronounced decline in grain trace-nutrient quality with increasing As content. To validate this further, a pot experiment cultivar screening trial, involving commonly cultivated high yielding variety (HYV) rice grown alongside two U.S. rice varieties characterized as being As tolerant and susceptible,was conducted on an As- amended uniform soil. Findings from the trial confirmed that As perturbed grain metal(loid) balances, resulting in severe yield reductions in addition to constraining the levels of Se, Zn, and Ni in the grain. © 2009 American Chemical Society.
Authors & Co-Authors
Williams, Paul N.
China, Beijing
Research Center for Eco-environmental Sciences Chinese Academy of Sciences
China, Beijing
Chinese Academy of Sciences
Islam, Shofiqul M.Zahirul
Bangladesh, Mymensingh
Bangladesh Agricultural University
Islam, Rafiqul M.
Bangladesh, Mymensingh
Bangladesh Agricultural University
Jahiruddin, Mohammad
Bangladesh, Mymensingh
Bangladesh Agricultural University
Adomako, Eureka E.A.
United Kingdom, Aberdeen
University of Aberdeen
Ghana, Accra
University of Ghana
Soliaman, A. R.M.
Bangladesh, Gazipur
Bangabandhu Sheikh Mujibur Rahman Agricultural University
Rahman, G. K.M.M.
Bangladesh, Gazipur
Bangabandhu Sheikh Mujibur Rahman Agricultural University
Lu, Ying
United Kingdom, Aberdeen
University of Aberdeen
China, Guangzhou
South China Agricultural University
Deacon, Claire M.
United Kingdom, Aberdeen
University of Aberdeen
Zhu, Yongguan
China, Beijing
Research Center for Eco-environmental Sciences Chinese Academy of Sciences
China, Beijing
Chinese Academy of Sciences
Meharg, Andrew A.
United Kingdom, Aberdeen
University of Aberdeen
Statistics
Citations: 100
Authors: 11
Affiliations: 7
Identifiers
Doi:
10.1021/es901825t
ISSN:
0013936X
e-ISSN:
15205851
Research Areas
Environmental
Food Security
Study Approach
Quantitative