Arsenic influence on genetic variation in grain trace-element nutrient content in Bengal delta grown rice

Environ Sci Technol. 2010 Nov 1;44(21):8284-8. doi: 10.1021/es101487x.

Abstract

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.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Arsenic / metabolism
  • Arsenic / pharmacology*
  • Bangladesh
  • Genetic Variation / drug effects*
  • India
  • Nickel / analysis
  • Nickel / metabolism
  • Nutritive Value
  • Oryza / drug effects
  • Oryza / genetics*
  • Oryza / metabolism
  • Selenium / analysis
  • Selenium / metabolism
  • Soil Pollutants / metabolism
  • Soil Pollutants / pharmacology*
  • Trace Elements / analysis
  • Trace Elements / metabolism*
  • Zinc / analysis
  • Zinc / metabolism

Substances

  • Soil Pollutants
  • Trace Elements
  • Nickel
  • Selenium
  • Zinc
  • Arsenic