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. 1983 Apr;154(1):287–293. doi: 10.1128/jb.154.1.287-293.1983

Use of randomly cloned DNA fragments for identification of Bacteroides thetaiotaomicron.

A A Salyers, S P Lynn, J F Gardner
PMCID: PMC217458  PMID: 6833179

Abstract

Randomly cloned fragments of DNA from Bacteroides thetaiotaomicron were used as hybridization probes for differentiation of B. thetaiotaomicron from closely related Bacteroides species. HindIII digestion fragments of DNA from B. thetaiotaomicron (type strain) were inserted into plasmid pBR322 and labeled with [alpha-32P]dCTP by nick translation. These labeled plasmids were screened for hybridization to HindIII digests of chromosomal DNA from type strains of the following human colonic Bacteroides species: B. thetaiotaomicron, Bacteroides ovatus, reference strain 3452-A (formerly part of B. distasonis), Bacteroides uniformis, Bacteroides fragilis, Bacteroides vulgatus, Bacteroides distasonis, Bacteroides eggerthii, and reference strain B5-21 (formerly B. fragilis subsp. a). Two of the five cloned fragments hybridized only to DNA from B. thetaiotaomicron. Each of these two fragments hybridized to the same DNA restriction fragment in five strains of B. thetaiotaomicron other than the strain from which the DNA was cloned. One of the cloned fragments (pBT2) was further tested for specificity by determining its ability to hybridize to DNA from 65 additional strains of colonic Bacteroides.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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