Document Detail


Degradation of 2,4,6-trinitrotoluene by selected helophytes.
MedLine Citation:
PMID:  16054915     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Four emergent plants (helophytes, synonyms emersion macrophytes, marsh plants, etc.) Phragmites australis, Juncus glaucus, Carex gracillis and Typha latifolia were successfully used for degradation of TNT (2,4,6-trinitrotoluene) under in vitro conditions. The plants took up and transformed more than 90% of TNT from the medium within ten days of cultivation. The most efficient species was Ph. australis which took up 98% of TNT within ten days. The first stable degradation products 4-amino-2,6-dinitrotoluene (4-ADNT) and 2-amino-4,6-dinitrotoluene (2-ADNT) were identified and analysed during the cultivation period. [14C] TNT was used for the detection of TNT degradation products and their compartmentalization in plant tissues after two weeks of cultivation. Forty one percent of 14C was detected as insoluble or bound in cell structures: 34% in roots and 8% in the aerial parts. These results open the perspective of using the above-mentioned plants for the remediation of TNT contaminated waters.
Authors:
A Nepovim; A Hebner; P Soudek; A Gerth; H Thomas; S Smrcek; T Vanek
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Chemosphere     Volume:  60     ISSN:  0045-6535     ISO Abbreviation:  Chemosphere     Publication Date:  2005 Sep 
Date Detail:
Created Date:  2005-08-01     Completed Date:  2005-11-03     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0320657     Medline TA:  Chemosphere     Country:  England    
Other Details:
Languages:  eng     Pagination:  1454-61     Citation Subset:  IM    
Affiliation:
Department of Plant Tissue Cultures, Institute of Organic Chemistry and Biochemistry, AS CR, Flemingovo nám. 2, 166 10 Praha 6, Czech Republic.
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MeSH Terms
Descriptor/Qualifier:
Angiosperms / chemistry,  growth & development,  metabolism*
Biodegradation, Environmental
Carbon Radioisotopes
Chromatography, High Pressure Liquid
Plant Components, Aerial / chemistry,  metabolism
Plant Roots / chemistry,  metabolism*
Trinitrotoluene / analysis,  metabolism*,  toxicity
Water Pollutants, Chemical / analysis,  metabolism*,  toxicity
Chemical
Reg. No./Substance:
0/Carbon Radioisotopes; 0/Water Pollutants, Chemical; 118-96-7/Trinitrotoluene

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