Document Detail


Single and joint effects of Zn and Cd on Porcellio scaber (Crustacea, Isopoda) exposed to artificially contaminated food.
MedLine Citation:
PMID:  19589599     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study aimed at determining effects of Zn, Cd and their equitoxic mixtures on metal assimilation and food consumption of the terrestrial isopod Porcellio scaber, in relation to metal availability in the food. Cd was four times less water-extractable than Zn. Cd or Zn extractability was affected neither by metal concentration nor by the presence of the other metal. In single metal exposures, assimilation efficiency (AE) was up to five times higher for Cd than for Zn. In a mixture, AE of Cd significantly increased at low mixture concentrations and decreased at high mixture concentrations. AE of Zn significantly increased at intermediate mixture concentrations. Effects of the Zn and Cd mixture on food consumption were additive (28-day EC(50,total)=1.10TU; EC(50,water-extractable)=1.18TU) when based on total and water-extractable concentrations but antagonistic when related to internal metal concentrations in the isopods (EC(50,internal)=1.40TU).
Authors:
Primoz Zidar; Cornelis A M Van Gestel; Jasna Strus
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-07-08
Journal Detail:
Title:  Ecotoxicology and environmental safety     Volume:  72     ISSN:  1090-2414     ISO Abbreviation:  Ecotoxicol. Environ. Saf.     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-10-26     Completed Date:  2009-11-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7805381     Medline TA:  Ecotoxicol Environ Saf     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2075-82     Citation Subset:  IM    
Affiliation:
Department of Biology, Biotechnical Faculty, University of Ljubljana, Vecna pot 111, SI-1000 Ljubljana, Slovenia. primoz.zidar@uni-lj.si
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MeSH Terms
Descriptor/Qualifier:
Administration, Oral
Animals
Cadmium / administration & dosage,  analysis,  toxicity*
Drug Synergism
Isopoda / drug effects*
Metals, Heavy / administration & dosage,  analysis,  toxicity*
Toxicity Tests
Water Pollutants, Chemical / administration & dosage,  analysis,  toxicity*
Zinc / administration & dosage,  analysis,  toxicity*
Chemical
Reg. No./Substance:
0/Metals, Heavy; 0/Water Pollutants, Chemical; 7440-43-9/Cadmium; 7440-66-6/Zinc

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


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