Biodegradation of Phenanthrene by Psychrotrophic Bacteria from Lake Baikal

Psychrotrophic phenanthrene-degrading bacteria were identified in the sediment samples collected from Lake Baikal, Russia. Among 70 phenanthrene-degrading isolates, the seven that had the highest phenanthrene-degradation rates were identified by 16S rDNA sequencing. Isolate P25, identified as the Gr...

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Veröffentlicht in:	Journal of microbiology and biotechnology 2005-10, Vol.15 (5), p.1135-1139
Hauptverfasser:	Ahn, T.S. (Kangwon National University, Chuncheon, Republic of Korea), Lee, G.H. (Kunsan National University, Kunsan, Republic of Korea), Song, H.G. (Kangwon National University, Chuncheon, Republic of Korea), E-mail: hgsong@kangwon.ac.kr
Format:	Artikel
Sprache:	eng
Schlagworte:	BIODEGRADACION BIODEGRADATION Biological and medical sciences Biotechnology Fundamental and applied biological sciences. Psychology phenanthrene psychrotrophic bacteria Rhodococcus erythropolis SURFACTANT SURFACTANTES SURFACTANTS
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Zusammenfassung:	Psychrotrophic phenanthrene-degrading bacteria were identified in the sediment samples collected from Lake Baikal, Russia. Among 70 phenanthrene-degrading isolates, the seven that had the highest phenanthrene-degradation rates were identified by 16S rDNA sequencing. Isolate P25, identified as the Gram-positive rod-shaped organism Rhodococcus erythropolis, had the highest growth and degradation rate at 15℃. It could remove 26.0% of 100 mg l-¹ phenanthrene in 20 days at 15℃, and degradation was less at 5℃ and 25℃. The addition of surfactants to enhance degradation was tested.
ISSN:	1017-7825