Genotypic variations in the accumulation of Cd, Cu, Pb and Zn exhibited by six commonly grown vegetables

Metal contaminants in garden and allotment soils could possibly affect human health through a variety of pathways. This study focused on the potential pathway of consumption of vegetables grown on contaminated soil. Five cultivars each of six common vegetables were grown in a control and in a soil s...

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Bibliographic Details
Published in:Environmental pollution (1987) 2006-12, Vol.144 (3), p.736-745
Main Authors: Alexander, P.D., Alloway, B.J., Dourado, A.M.
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Allium cepa
Apiaceae
Apiaceae - chemistry
Apiaceae - metabolism
Asteraceae
Asteraceae - chemistry
Asteraceae - metabolism
bioaccumulation
Biodegradation, Environmental
Biological and medical sciences
Cadmium
carrots
Chenopodiaceae
Chenopodiaceae - chemistry
Chenopodiaceae - metabolism
Contaminated soil
Copper
cultivars
Daucus
Daucus carota
Daucus carota - chemistry
Daucus carota - metabolism
Environmental Pollution - adverse effects
Fabaceae
Fabaceae - chemistry
Fabaceae - metabolism
Food Contamination
Fundamental and applied biological sciences. Psychology
genetic variation
Genetics and breeding of economic plants
genotype
green beans
Heavy metal accumulation
heavy metals
Lactuca sativa
Lead
leaves
legumes
lettuce
Liliaceae
Liliaceae - chemistry
Liliaceae - metabolism
Metals, Heavy - analysis
Metals, Heavy - metabolism
onions
peas
Phaseolus vulgaris
Pisum sativum
polluted soils
roots
Soil and water pollution
soil pollution
Soil science
spinach
Spinacia oleracea
Toxicity Tests
Vegetable cultivars
vegetables
Vegetables - chemistry
Vegetables - classification
Vegetables - metabolism
Zinc
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Summary:Metal contaminants in garden and allotment soils could possibly affect human health through a variety of pathways. This study focused on the potential pathway of consumption of vegetables grown on contaminated soil. Five cultivars each of six common vegetables were grown in a control and in a soil spiked with Cd, Cu, Pb and Zn. Highly significant differences in metal content were evident between cultivars of a number of vegetables for several of the contaminants. Carrot and pea cultivars exhibited significant differences in accumulated concentrations of Cd and Cu with carrot cultivars also exhibiting significant differences in Zn. Distinctive differences were also identified when comparing one vegetable to another, legumes (Leguminosae) tending to be low accumulators, root vegetables (Umbelliferae and Liliaceae) tending to be moderate accumulators and leafy vegetables (Compositae and Chenopodiaceae) being high accumulators. Genotypic differences between cultivars of vegetable species can be important in determining the extent of accumulation of metals from contaminated soil.
ISSN:0269-7491
1873-6424
DOI:10.1016/j.envpol.2006.03.001