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Comparison of bacte...
Comparison of bacterial diversity along the human intestinal tract by direct cloning and sequencing of 16S rRNA genes
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- Wang, Mei (author)
- Lund University,Lunds universitet,Livsmedelsteknik,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Food Technology, Engineering and Nutrition,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH
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- Ahrné, Siv (author)
- Lund University,Lunds universitet,Livsmedelsteknik,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Food Technology, Engineering and Nutrition,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH
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- Jeppsson, Bengt (author)
- Lund University,Lunds universitet,Kirurgi,Forskargrupper vid Lunds universitet,Surgery,Lund University Research Groups
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- Molin, Göran (author)
- Lund University,Lunds universitet,Livsmedelsteknik,Avdelningen för livsmedel och läkemedel,Institutionen för processteknik och tillämpad biovetenskap,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Food Technology, Engineering and Nutrition,Division of Food and Pharma,Department of Process and Life Science Engineering,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
- Oxford University Press (OUP), 2005
- 2005
- English.
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In: FEMS Microbiology Ecology. - : Oxford University Press (OUP). - 1574-6941 .- 0168-6496. ; 54:2, s. 219-231
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Abstract
Subject headings
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- Bacterial diversity of the mucosal biopsies from human jejunum, distal ileum, ascending colon and rectum were compared by analysis of PCR-amplified 16S rDNA clone libraries. A total of 347 clones from the mucosal biopsies were partially sequenced and assigned to six phylogenctic phyla of the domain Bacteria: Firmicutes, Bacteroidetes, Proteobacteria, Fusobacteria, Verrucomicrobia, and Actinobacteria. The jejunum sample had least microbial diversity compared to the other samples and a trend towards highest diversity in ascending colon was observed. The clone libraries of distal ileum, ascending colon and rectum were not significantly different from each other (P > 0.0043), but they differed significantly from the jejunum library (P = 0.001). The population of sequences retrieved from jejunal biopsies was dominated by sequences closely related to Streptococcus (67%), while the population of sequences derived from distal ileum, ascending colon and rectum were dominated by sequences affiliated with Bacteroidetes (27-49%), and Clostridium clusters XlVa (20-34%) and IV (7-13%). The results indicate that the microbial community in jejunum is different from those in distal ileum, ascending colon and rectum, and that the major phylogenetic groups are similar from distal ileum to rectum. (C) 2005 Federation of European Microbiological Societies. Published by Elsevier B.V. All rights reserved.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kirurgi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Surgery (hsv//eng)
Keyword
- Human mucosal biopsy
- 16S rDNA cloning and sequencing
- Bacterial diversity
Publication and Content Type
- art (subject category)
- ref (subject category)
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