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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Nakano, Miyo Kihara, Masaki Iehata, Shunpei Tanaka, Reiji Maeda, Hiroto Yoshikawa, Takeshi |
| Description | Country affiliation: Japan Author Affiliation: Nakano M ( Marine Microbiology, Mie University, Kurimamachiya-cho, Tsu, Mie, Japan.) |
| Abstract | The hydrocarbon-degrading bacterium Dietzia maris WR-3 was isolated from a consortium comprising ammonia-oxidizing and denitrifying bacteria derived from marine sediments. Here, we examined biosurfactant production by strain WR-3 when cultured using several different carbon (D-glucose, n -decane, n -hexadecane, motor oil, olive oil, and rapeseed oil) and nitrogen $(NH_{4})_{2}SO_{4},$ $NaNO_{3},$ yeast extract, and polypeptone) sources as growth substrates. Strain WR-3 was able to grow and reduce the surface tension of culture broth to 31±1.0 mN $m^{–1}$ when cultured using n -hexadecane and nitrate ions. The surface-active compounds produced by strain WR-3 were extracted and analyzed by thin layer chromatography. Moreover, the main components in the extract were further purified and subjected to gas chromatography/mass spectrometry (GC/MS). From the analysis, the surface-active compounds were tentatively identified as wax ester-like compounds, which were synthesized from the degradation process of n -alkane. The production of surface-active compounds by strain WR-3 promoted attachment of cells to hydrocarbon droplets via increased cell hydrophobicity, thus allowing enhanced degradation of water immiscible substrates. As Dietzia spp. can grow and produce wax esters from the degradation process of hydrocarbons, these marine bacteria are potentially useful for the bioremediation of hydrocarbon-contaminated environments. (© 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim) |
| File Format | HTM / HTML |
| ISSN | 0233111X |
| Issue Number | 5 |
| Volume Number | 51 |
| e-ISSN | 15214028 |
| Journal | Journal of Basic Microbiology |
| Language | English |
| Publisher | Wiley-VCH Verlag |
| Publisher Date | 2011-10-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Microbiology Actinomycetales Metabolism Alkanes Carbon Surface-active Agents Waxes Classification Genetics Gas Chromatography-mass Spectrometry Nitrogen Phylogeny Rna, Ribosomal, 16s Isolation & Purification Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Applied Microbiology and Biotechnology |
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