Document Detail

Bioaccumulation of cadmium, chromium and copper by Convolvulus arvensis L.: impact on plant growth and uptake of nutritional elements.
MedLine Citation:
PMID:  14766155     Owner:  NLM     Status:  MEDLINE    
The remediation of heavy metal-contaminated sites using plants presents a promising alternative to current methodologies. In this study, the potential accumulation of Convolvulus arvensis L. for Cd(II), Cr(VI), and Cu(II) was determined using an agar-based medium. The shoots of C. arvensis plants exposed to 20 mgl(-1) of these heavy metals, demonstrated capability to accumulate more than 3800 mg of Cr, 1500 mg of Cd, and 560 mg of Cu per kg of dry tissue. The outcome of this study and the field data previously reported corroborate that C. arvensis is a suitable candidate for the phytoremediation of Cd(II), Cr(VI), and Cu(II) contaminated soils. Furthermore, the concentration of Cr determined in the dry leaf tissue (2100 mgkg(-1)) indicates that C. arvensis could be considered as a potential Cr-hyperaccumulator plant species.
J L Gardea-Torresdey; J R Peralta-Videa; M Montes; G de la Rosa; B Corral-Diaz
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Bioresource technology     Volume:  92     ISSN:  0960-8524     ISO Abbreviation:  Bioresour. Technol.     Publication Date:  2004 May 
Date Detail:
Created Date:  2004-02-09     Completed Date:  2004-05-03     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  9889523     Medline TA:  Bioresour Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  229-35     Citation Subset:  IM    
Environmental Science and Engineering Ph.D. Program, University of Texas at El Paso, El Paso, TX 79968, USA.
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MeSH Terms
Analysis of Variance
Biodegradation, Environmental
Convolvulus / growth & development*,  metabolism*
Environmental Pollution / prevention & control*
Metals, Heavy / analysis,  pharmacokinetics*
Soil Pollutants / pharmacokinetics*
Grant Support
Reg. No./Substance:
0/Metals, Heavy; 0/Soil Pollutants

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

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