Wachstum gentechnisch veränderter E. coli K—12-Zellen in Klärschlamm aus zwei Kläranlagen Growth of Genetically Modified E. coli K - 12 Cells in Sewage Sludge of Two Different Sewage Treatment Plants |
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| Authors: | G Danneberg M Mieschendahl |
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| Abstract: | The release of genetically engineered microorganisms may occur from research laboratories of production plants. The most important pathway of release is via the sewage system and the sewage treatment plants into surface waters. The growth of these organisms might represent a risk to the environment. Therefore the growth of a genetically engineered strain of E. coli K-12 was investigated. Aqueous supernatant from sewage sludge of two domestic sewage plants was used as medium. This medium was treated with sterile filtration and amended with nutrients. The test strain E. coli K-12 W3110iqM15Nalr(pBR322) did not show permanent growth under the conditions employed. The result is interpreted by the presence of bacteriophages and the poor nutritional conditions in the medium. |
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| Keywords: | E coli K-12 Ü berleben Abwasser Klä rschlamm Gentechnik |
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