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Identification of mixed bacterial DNA contamination in broad-range PCR amplification of 16S rDNA V1 and V3 variable regions by pyrosequencing of cloned amplicons
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2003 (English)In: FEMS Microbiology Letters, ISSN 0378-1097, Vol. 219, no 1, 87-91 p.Article in journal (Refereed) Published
Abstract [en]

Using a sensitive and rapid method combining broad-range PCR amplification of bacterial 16S rDNA fragments and pyrosequencing for detection, identification and typing, we have found contaminating bacterial DNA in our reagents used for PCR. Identified bacteria are the water-borne bacterial genera Pseudomonas, Stenotrophomonas, Xanthomonas, Ralstonia and Bacillus. Our results are in concordance with recent reports of contaminated industrial water systems. In light of this conclusion, we believe that there is a need for increased awareness of possible contamination in uncertified widely used molecular biology reagents, including ultra-pure water. Since sequence-based 16S rDNA techniques are used in a variety of settings for bacterial typing and the characterization of microbial communities, we feel that future certification of molecular biology reagents, as free of nucleic acids, would be advantageous. ⌐ 2002 Federation of European Microbiological Societies. Published by Elsevier Science B.V. All rights reserved.

Place, publisher, year, edition, pages
2003. Vol. 219, no 1, 87-91 p.
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Medical and Health Sciences
URN: urn:nbn:se:liu:diva-26502DOI: 10.1016/S0378-1097(02)01190-4Local ID: 11059OAI: diva2:247051
Available from: 2009-10-08 Created: 2009-10-08 Last updated: 2011-01-13

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Jonasson, Jon
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Faculty of Health SciencesDepartment of Molecular and Clinical MedicineDepartment of Clinical Microbiology
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