Arsenic Influence on Genetic Variation in Grain Trace-Element Nutrient Content in Bengal Delta Grown Rice

It has previously been shown that across different arsenic (As) soil environments, a decrease in grain selenium (Se), zinc (Zn), and nickel (Ni) concentrations is associated with an increase in grain As. In this study we aim to determine if there is a genetic element for this observation or if it is...

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Bibliographic Details
Published in:Environmental science & technology 2010-11, Vol.44 (21), p.8284-8288
Main Authors: Norton, Gareth J., Dasgupta, Tapash, Islam, M. Rafiqul, Islam, Shofiqul, Deacon, Claire M., Zhao, Fang-Jie, Stroud, Jacqueline L., McGrath, Steve P., Feldmann, Joerg, Price, Adam H., Meharg, Andrew A.
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Arsenic - metabolism
Arsenic - pharmacology
Bangladesh
Biological and medical sciences
Ecotoxicology and Human Environmental Health
Fundamental and applied biological sciences. Psychology
Generalities. Genetics. Plant material
Genetic resources, diversity
Genetic Variation - drug effects
Genetics and breeding of economic plants
India
Nickel - analysis
Nickel - metabolism
Nutritive Value
Oryza - drug effects
Oryza - genetics
Oryza - metabolism
Plant material
Selenium - analysis
Selenium - metabolism
Soil Pollutants - metabolism
Soil Pollutants - pharmacology
Trace Elements - analysis
Trace Elements - metabolism
Zinc - analysis
Zinc - metabolism
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Summary:It has previously been shown that across different arsenic (As) soil environments, a decrease in grain selenium (Se), zinc (Zn), and nickel (Ni) concentrations is associated with an increase in grain As. In this study we aim to determine if there is a genetic element for this observation or if it is driven by the soil As environment. To determine the genetic and environmental effect on grain element composition, multielement analysis using ICP-MS was performed on rice grain from a range of rice cultivars grown in 4 different field sites (2 in Bangladesh and 2 in West Bengal). At all four sites a negative correlation was observed between grain As and grain Ni, while at three of the four sites a negative correlation was observed between grain As and grain Se and grain copper (Cu). For manganese, Ni, Cu, and Se there was also a significant genetic interaction with grain arsenic indicating some cultivars are more strongly affected by arsenic than others.
ISSN:0013-936X
1520-5851
DOI:10.1021/es101487x