Document Detail


Hydrocarbon utilization by nodule bacteria and plant growth-promoting rhizobacteria.
MedLine Citation:
PMID:  18246774     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Standard and locally isolated nodule bacteria and plant growth-promoting rhizobacteria (PGPR) were grown on crude oil and individual pure hydrocarbons as sole sources of carbon and energy. The nodule bacteria included two standard Rhizobium leguminosarum strains, two standard Bradyrhizobium japonicum strains, and one unknown nodule bacterial strain that was locally isolated from Vicia faba nodules. The PGPR included one standard Serratia liquefaciens strain and two locally isolated strains of Pseudomonas aeruginosa and Flavobacterium sp. The pure hydrocarbons tested included n-alkanes with chain lengths from C9 to C40 and the aromatic hydrocarbons benzene, biphenyle, naphthalene, phenanthrene, and toluene. Quantitative gas liquid chromatographic analyses confirmed that pure cultures of representative nodule bacteria and PGPR could attenuate n-octadecane and phenanthrene in the surrounding nutrient medium. Further, intact nodules of V. faba containing bacteria immobilized on and within those nodules reduced hydrocarbon levels in a medium in which those nodules were shaken. It was concluded that legume crops are suitable phytoremediation tools for oily soil, since they enrich such soils not only with fixed nitrogen, but also with hydrocarbon-utilizing microorganisms. Further, legume nodules may have biotechnological value as materials for cleaning oily liquid wastes.
Authors:
Samir S Radwan; Narjes Dashti; Israa El-Nemr; Majida Khanafer
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  International journal of phytoremediation     Volume:  9     ISSN:  1522-6514     ISO Abbreviation:  Int J Phytoremediation     Publication Date:    2007 Nov-Dec
Date Detail:
Created Date:  2008-02-05     Completed Date:  2008-02-21     Revised Date:  2009-01-12    
Medline Journal Info:
Nlm Unique ID:  101136878     Medline TA:  Int J Phytoremediation     Country:  United States    
Other Details:
Languages:  eng     Pagination:  475-86     Citation Subset:  IM    
Affiliation:
Department of Biological Sciences, Faculty of Science, Kuwait University, Safat, Kuwait. radwan@kuc01.kuniv.edu.kw
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MeSH Terms
Descriptor/Qualifier:
Bacteria / drug effects*
Bradyrhizobium / drug effects
Flavobacterium / drug effects
Humans
Hydrocarbons / pharmacology*
Plants / microbiology*
Pseudomonas aeruginosa / drug effects
Rhizobium / drug effects
Soil Microbiology
Water Pollutants, Chemical / pharmacology*
Chemical
Reg. No./Substance:
0/Hydrocarbons; 0/Water Pollutants, Chemical

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


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