Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
1999-3-25
pubmed:abstractText
A rise in bifidobacterial numbers resembling the Escherichia coli overgrowth phenomenon was observed in the rat small intestine in a feeding experiment with kidney beans. Bifidobacterial colony counts increased from 7.6 x 10(6) to 1.7 x 10(8) cfu.g-1 of intestinal tissue in the anterior part and from less than 1 x 10(5) to 2.65 x 10(8) cfu.g-1 in posterior part of the intestine. Fifteen bifidobacterial strains were purified and further analysed. Random amplified polymorphic DNA (RAPD) assays were used to genetically differentiate bifidobacterial isolates from rat gut and compare them with type strains of 20 different species from the genus Bifidobacterium. A total of 80 arbitrary decamere primers were screened with 6 isolates, and 7 primers were chosen for the final analysis. The amplified DNA bands were scored and analysed by the unweighted pair-group method using arithmetic averages clustering. The isolates were not identical to each other nor to the screened type strains. Whereas it was possible to group 12 of the isolates into 2 separate clusters, 3 strains showed no significant relatedness to any strain. The results of the RAPD analysis indicated that there was a large degree variability among the bifidobacteria in the rat gut and demonstrated the potential applicability of such an approach in the investigation of microbial diversity in complex ecosystems.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0008-4166
pubmed:author
pubmed:issnType
Print
pubmed:volume
44
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1094-101
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1998
pubmed:articleTitle
Random amplified polymorphic DNA analysis and demonstration of genetic variability among bifidobacteria isolated from rats fed with raw kidney beans.
pubmed:affiliation
University of Ljubljana, Biotechnical Faculty, Zootechnical Department, Domzale, Slovenia.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't