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KMID : 0545120100200091339
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Journal of Microbiology and Biotechnology
2010 Volume.20 No. 9 p.1339 ~ p.1347
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Comparative Study of Rhizobacterial Community Structure of Plant Species in Oil-Contaminated Soil
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Lee Eun-Hee
Cho Kyong-Suk
Kim Jai-Soo
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Abstract
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In this study, the kinds of plants and rhizobacteria in oil-contaminated area were examined. The plant species forming community or scattered were 24. The species living in highly-contaminated with TPH 9000-45000 mg/g-soil were Cynodon dactylon, Persicaria lapathifolia, and Calystegia soldanella (a halophytic species). Among 24 plant species, the following specis have been known as effective oil-removal plants: C. dactylon, Digitaria sanguinalis, Cyperus orthostachyus. Denaturing gradient gel electrophoresis (DGGE) profile analysis showed that the following plant species had high similarities with around above 70% in rhizobacterial community structure: Artemisia princeps and Hemistepta lyrata; Cynodon dactylon and Persicaria lapathifolia; Carex kobomugi and Cardamine flexuosa; Equisetum arvense and Digitaria sanguinalis. Major rhizobacteria were involved in the following groups: Beta-proteobacteria, Gamma-proteobacteria, Chloroflexi, Actinobacteria, and unknown. Therefore, based on DGGE analysis, P. lapathifolia may be good as a newly found plant species for phytoremediation to remediate oil-contaminated soils, and for high salt concentrated soils, C. soldanella may be useful.
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KEYWORD
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Plant, Oil-contaminated soil, Denaturing Gradient Gel Electrophoresis (DGGE), Rhizobacteria, Bacterial community structure, Total Petroleum Hydrocarbon (TPH)
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