Document Detail

Effects of lead contamination on the growth of lythrum salicaria (purple loosestrife).
MedLine Citation:
PMID:  12395845     Owner:  NLM     Status:  MEDLINE    
The ability of individual species to tolerate or accumulate heavy metal pollutants has been investigated widely. Although invasive species may become established more easily in disturbed environments, relatively little is known about how an ability to tolerate pollutants might give invasive species a competitive advantage. This study is part of a series of experiments investigating native and invasive species interactions with chemical pollution and other forms of disturbance. The purpose of this experiment was to investigate the effects of lead on the growth of Lythrum salicaria. We exposed plants to different concentrations of lead and measured different growth parameters, such as biomass, length, leaf number, and biomass allocation to roots. For most measures, plants grown in lead-free conditions were larger than plants exposed to lead. Plants in the low (500 mg/l) and medium (1,000 mg/l) lead treatments did not differ from each other, while plants in the high (2,000 mg/l) lead treatment were significantly smaller. However, the biomass allocation to roots was not significantly different among treatments. Although their growth is affected, individuals of Lythrum salicaria demonstrated tolerance to lead contamination, which may aid in their colonization in lead-polluted wetlands.
Joseph L Uveges; Andrea L Corbett; Tarun K Mal
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Environmental pollution (Barking, Essex : 1987)     Volume:  120     ISSN:  0269-7491     ISO Abbreviation:  Environ. Pollut.     Publication Date:  2002  
Date Detail:
Created Date:  2002-10-24     Completed Date:  2003-03-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8804476     Medline TA:  Environ Pollut     Country:  England    
Other Details:
Languages:  eng     Pagination:  319-23     Citation Subset:  IM    
Department of Biological, Geological and Environmental Sciences, Cleveland State University, OH 44115, USA.
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MeSH Terms
Lead / toxicity*
Lythrum / drug effects*,  growth & development
Soil Pollutants / toxicity*
Toxicity Tests
Reg. No./Substance:
0/Soil Pollutants; 7439-92-1/Lead

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