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Related Experiment Videos

Selenium accumulation in plant foods.

John W Finley1

  • 1United States Department of Agriculture, Agricultural Research Service, Grand Forks Human Nutrition Research Center, P.O. Box 9034, Grand Forks, ND 58202-9034, USA. jfinley@gfhnrc.ars.usda.gov

Nutrition Reviews
|July 21, 2005
PubMed
Summary

Selenium (Se) is an essential nutrient. Se-enhanced plants offer a promising strategy to increase dietary intake and potentially prevent diseases like cancer, but careful monitoring is needed.

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Area of Science:

  • Agricultural Science
  • Nutritional Science
  • Biochemistry

Background:

  • Selenium (Se) is a vital nutrient crucial for immune function.
  • Se deficiency is linked to various diseases and compromised immunity.
  • Dietary Se supplementation may offer protective effects against certain cancers.

Purpose of the Study:

  • To explore the potential of Se-enhanced plants for augmenting human Se intake.
  • To investigate the accumulation and chemical forms of Se in plants.
  • To understand how plant genetics and agricultural practices influence Se content.

Main Methods:

  • Analysis of Se accumulation in different plant species.
  • Characterization of various chemical forms of Se in plants.
  • Evaluation of plant genetics and agricultural conditions for Se manipulation.

Main Results:

  • Plants exhibit varied Se accumulation capabilities, with some species accumulating significantly higher concentrations.
  • The chemical form of Se in plants influences its metabolism in animals.
  • Plant Se content and form can be modified through genetic and agricultural interventions.

Conclusions:

  • Se-enhanced plants represent a viable strategy for improving dietary Se levels.
  • Understanding Se speciation in plants is critical for optimizing its bioavailability.
  • Careful management is required to avoid adverse effects when maximizing Se in crops.

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