Document Detail


Transfer of cadmium from plant leaves and vegetable flour to the snail Helix aspersa: bioaccumulation and effects.
MedLine Citation:
PMID:  12481871     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Juvenile Helix aspersa snails were exposed for 4 weeks to fresh rape leaves (Brassica napus), contaminated by simulating superficial deposits of increasing concentrations of cadmium (Cd). The Cd concentration in leaves was 0.1 in control and 38.4, 93.1, and 177.2 microg x g(-1) (dry mass) in Cd-treated food. The concentration in snail tissues increased with increasing Cd concentrations in the food. The bioaccumulation factors ranged from 4.8 (control) to 2.4 (highest exposed group), indicating a biomagnification of Cd in this food chain. The growth of the snails treated with Cd was reduced by 17, 24, and 43% respectively, compared to the control group. Comparison of these results with those obtained with snails exposed to similar Cd concentrations in a vegetable flour revealed that accumulation and effects were relatively consistent, demonstrating a comparable bioavailability of Cd in the two diets. Tests using growing H. aspersa snails exposed to metals in flour or fresh leaves can be useful for risk assessment purposes.
Authors:
R Scheifler; A Gomot-de Vaufleury; P M Badot
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Ecotoxicology and environmental safety     Volume:  53     ISSN:  0147-6513     ISO Abbreviation:  Ecotoxicol. Environ. Saf.     Publication Date:  2002 Sep 
Date Detail:
Created Date:  2002-12-16     Completed Date:  2003-02-06     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7805381     Medline TA:  Ecotoxicol Environ Saf     Country:  United States    
Other Details:
Languages:  eng     Pagination:  148-53     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animal Feed
Animals
Biological Availability
Brassica / chemistry*
Cadmium / pharmacokinetics*
Diet
Environmental Pollutants / pharmacokinetics*
Flour
Food Chain*
Plant Leaves / chemistry
Snails* / chemistry,  growth & development,  physiology
Tissue Distribution
Vegetables
Chemical
Reg. No./Substance:
0/Environmental Pollutants; 7440-43-9/Cadmium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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