| Soil type affects plant colonization, activity and catabolic gene expression of inoculated bacterial strains during phytoremediation of diesel. | |
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MedLine Citation:
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PMID: 21216097 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The combined use of plants and associated microorganisms has great potential for cleaning up soils contaminated with petroleum hydrocarbons. Apart from environmental conditions the physicochemical properties of the soil are the main factors influencing the survival and activity of an inoculated strain as well as the growth of plants. This study examined the effect of different soil types (sandy, loamy sand and loam) on the survival, gene abundance and catabolic gene expression of two inoculated strains (Pseudomonas sp. strain ITRI53 and Pantoea sp. strain BTRH79) in the rhizosphere and shoot interior of Italian ryegrass vegetated in diesel contaminated soils. High colonization, gene abundance and expression in loamy soils were observed. By contrast, low colonization, gene abundance and absence of gene expression in sandy soil were found. The highest levels of genes expression and hydrocarbon degradation were seen in loamy soil that had been inoculated with BTRH79 and were significantly higher compared to those in other soils. A positive correlation was observed between gene expression and hydrocarbon degradation indicating that catabolic gene expression is necessary for contaminant degradation. These results suggest that soil type influences the bacterial colonization and microbial activities and subsequently the efficiency of contaminant degradation. |
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Authors:
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Muhammad Afzal; Sohail Yousaf; Thomas G Reichenauer; Melanie Kuffner; Angela Sessitsch |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-12-15 |
Journal Detail:
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Title: Journal of hazardous materials Volume: 186 ISSN: 1873-3336 ISO Abbreviation: J. Hazard. Mater. Publication Date: 2011 Feb |
Date Detail:
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Created Date: 2011-02-14 Completed Date: 2011-06-06 Revised Date: 2012-07-13 |
Medline Journal Info:
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Nlm Unique ID: 9422688 Medline TA: J Hazard Mater Country: Netherlands |
Other Details:
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Languages: eng Pagination: 1568-75 Citation Subset: IM |
Copyright Information:
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Copyright © 2010 Elsevier B.V. All rights reserved. |
Affiliation:
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AIT Austrian Institute of Technology GmbH, Department of Health and Environment, A-2444 Seibersdorf, Austria. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Air Pollutants
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analysis* Alkane 1-Monooxygenase / metabolism Amino Acids, Cyclic / metabolism Biomass Carbon-Carbon Lyases / genetics, metabolism Cytochrome P-450 Enzyme System / genetics DNA, Bacterial / genetics, metabolism Environmental Remediation* Gasoline / analysis* Gene Expression Regulation, Bacterial / genetics* Hydrocarbons / analysis Pantoea / enzymology, genetics*, growth & development* Particle Size Particulate Matter Plant Shoots / enzymology, metabolism Pseudomonas / genetics*, growth & development, metabolism* RNA, Bacterial / genetics, metabolism Soil / analysis* |
| Chemical | |
Reg. No./Substance:
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0/Air Pollutants; 0/Amino Acids, Cyclic; 0/DNA, Bacterial; 0/Gasoline; 0/Hydrocarbons; 0/Particulate Matter; 0/RNA, Bacterial; 0/Soil; 22059-21-8/1-aminocyclopropane-1-carboxylic acid; 9035-51-2/Cytochrome P-450 Enzyme System; EC 1.14.-/cytochrome P-450 CYP153 (Acinetobacter); EC 1.14.15.3/Alkane 1-Monooxygenase; EC 3.5.99.7/1-aminocyclopropane-1-carboxylate deaminase; EC 4.1.-/Carbon-Carbon Lyases |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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