Infect Agents Dis. 1992 Oct;1(5):245-53.

Identification of uncultured microorganisms: expanding the spectrum of characterized microbial pathogens.

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Department of Medicine, Stanford University, California.

Abstract

The combination of enzymatic nucleic acid amplification techniques with 16S rRNA-based molecular phylogeny has brought about a new approach to the identification of microbial pathogens that can not be cultivated in the laboratory. The applications of this experimental approach to bacillary angiomatosis and to Whipple's disease have revealed the presence of two previously uncharacterized organisms. These results suggest the existence of a far greater microbial diversity among human pathogens than has been so far appreciated with culture-dependent methods. PCR-based studies of aquatic environmental microbial communities have already reached similar conclusions. As a result, new and provocative questions are raised concerning the association of amplified 16S rRNA sequences with diseased tissue. The answers must await the results of further investigations and the expansion of sequence data bases.

PMID:: 1285351; [PubMed - indexed for MEDLINE]

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NIDDKD DK-38707/DK/NIDDK NIH HHS/United States

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