Document Detail

Detection and quantification of probiotic strain Lactobacillus gasseri K7 in faecal samples by targeting bacteriocin genes.
MedLine Citation:
PMID:  23616265     Owner:  NLM     Status:  Publisher    
Lactobacillus gasseri K7 is a probiotic strain that produces bacteriocins gassericin K7 A and K7 B. In order to develop a real-time quantitative PCR assay for the detection of L. gasseri K7, 18 reference strains of the Lactobacillus acidophilus group and 45 faecal samples of adults who have never consumed strain K7 were tested with PCR using 14 pairs of primers specific for gassericin K7 A and K7 B gene determinants. Incomplete gassericin K7 A or K7 B gene clusters were found to be dispersed in different lactobacilli strains as well as in faecal microbiota. One pair of primers was found to be specific for the total gene cluster of gassericin K7A and one for gassericin K7B. The real-time PCR analysis of faecal samples spiked with K7 strain revealed that primers specific for the gene cluster of the gassericin K7 A were more suitable for quantitative determination than those for gassericin K7 B, due to the lower detection level. Targeting of the gassericin K7 A or K7 B gene cluster with specific primers could be used for detection and quantification of L. gasseri K7 in human faecal samples without prior cultivation. The results of this study also present new insights into the prevalence of bacteriocin-encoding genes in gastrointestinal tract.
Primož Treven; Kristyna Turkova; Aljoša Trmčić; Tanja Obermajer; Irena Rogelj; Bojana Bogovič Matijašić
Related Documents :
24838665 - Simple and rapid detection of salmonella by direct pcr amplification of gene fimw.
23515025 - Whole genomic analysis of a porcine-like human g5p[6] rotavirus strain isolated from a ...
24549625 - Engineered riboswitch as a gene-regulatory platform for reducing antibiotic resistance.
22966555 - Interface-modified unipolar resistive random access memory (rram) structure for low-pow...
11179345 - Helicobacter pylori pore-forming cytolysin orthologue tlya possesses in vitro hemolytic...
239645 - Malaria studies in vitro. iv: chloroquine resistance and the intracellular ph of erythr...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-4-25
Journal Detail:
Title:  Folia microbiologica     Volume:  -     ISSN:  1874-9356     ISO Abbreviation:  Folia Microbiol. (Praha)     Publication Date:  2013 Apr 
Date Detail:
Created Date:  2013-4-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0376757     Medline TA:  Folia Microbiol (Praha)     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Biotechnical Faculty, Institute of Dairy Science and Probiotics, University of Ljubljana, Groblje 3, 1230, Domžale, Slovenia,
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Iridium(I)-Hydroxides: Powerful Synthons for Bond Activation.
Next Document:  Patient-specific Guides Do Not Improve Accuracy in Total Knee Arthroplasty: A Prospective Randomized...