Inhibitory impact of bifidobacteria on the transfer of [beta]-lactam resistance among enterobacteriaceae in the gnotobiotic mouse digestive tract
Article Abstract:
The role of bifidobacteria in the transfer of antibiotic resistance genes in vitro and in vivo was determined to evaluate the impact of different bifidobacterial species on the establishment of transconjugants in the digestive tracts of gnotobiotic mice. Bifidobacteria appeared to have an inhibitory impact on the transfer of antibiotic resistance genes associated to specific bifidobacterial strains and might be related to the production of thermostable metabolites by these strains.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2007
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Class 1 integrons and tetracycline resistance genes in Alcaligenes, Arthrobacter, and Pseudomonas spp. isolated from pigsties and manured soil
Article Abstract:
The presence of commonly found tetracycline resistance (Tc(super r) genes and class I integrons in bacteria isolated from manured soil and pigsty environment is investigated. The soil bacteria in close contact to manure or pigsty environment might have an important role in horizontal spread of resistance and hence the use of teracyclins in food animal production might increase not only Tc(super r) but also multidrug resistance in bacteria.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2005
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Molecular analysis of tet(W) gene-mediated tetracycline resistance in dominant intestinal Bifidobacterium species from healthy humans
Article Abstract:
A study found tet(W) responsible for tetracycline resistance {MICs 4 to (greater than or equal to) 32 [mu]g [ml.sup.-1]} in dominant bifidobacterial species from the gastrointestinal tracts of healthy humans. The gene from Bifidobacterium longum H66 proved to be identical over 2.6-kbp region on the described tet(W) determinant of Butyrivibrio fibrisolvens.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2006
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