Document Detail

Effect of the exposure to metal lead on the regenerative ability of Lumbriculus variegatus (Oligochaeta).
MedLine Citation:
PMID:  21787687     Owner:  NLM     Status:  In-Data-Review    
Lumbriculus variegatus is a recommended species for use in sediment toxicity tests and is known to have a remarkable power of segmental regeneration. Here, we tested the effects of a chemical stressor on the regenerative ability of L. variegatus and investigated the potential of regenerative ability as an additional new parameter in standard toxicity tests. The worms were cut into two equal segments, and exposed to various concentrations of lead. Two assays were performed: one with sediment spiked with lead and the other with water spiked with lead. The endpoints were segmental regeneration, survival and behaviour. Regenerative ability was clearly affected by exposure to lead-contaminated sediment and lead-contaminated water. Organisms exposed to lead grew more slowly than those not exposed; worms exposed to contaminated water showed higher mortalities than those exposed to contaminated sediment. Results showed that L. variegatus' regenerative ability, as a developmental test parameter, is more sensitive than mortality.
Ana Margarida Sardo; Lourdes Pereira; Almut Gerhardt; Amadeu M V M Soares
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Publication Detail:
Type:  Journal Article     Date:  2010-11-09
Journal Detail:
Title:  Environmental toxicology and pharmacology     Volume:  31     ISSN:  1872-7077     ISO Abbreviation:  Environ. Toxicol. Pharmacol.     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-07-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9612020     Medline TA:  Environ Toxicol Pharmacol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  205-11     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier B.V. All rights reserved.
CESAM & Departamento de Biologia, Universidade de Aveiro, Portugal.
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