Results 171 to 180 of about 114,464,069 (201)
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Distribution of class 1 integrons in a highly impacted catchment
Science of The Total Environment, 2016Polluted compounds into freshwater sediments may select and enrich bacteria carrying specific genetic compositions. Here we examine the possible use of class 1 integrons as bioindicators in freshwater environments. Samples were collected from various sediments in an urban area (Zhangye, Gansu province, China), specifically within the city, in the ...
Luigimaria Borruso +4 more
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Water Research, 2012
In this study, 1832 strains of the family Enterobacteriaceae were isolated from different stages of a municipal wastewater treatment plant, of which 221 (12.1%) were intI-positive. Among them 61.5% originated from raw sewage, 12.7% from aeration tank and 25.8% from the final effluent. All of the intI-positive strains were multiresistant, i.e. resistant
Joanna Mokracka, Ryszard Koczura
exaly +3 more sources
In this study, 1832 strains of the family Enterobacteriaceae were isolated from different stages of a municipal wastewater treatment plant, of which 221 (12.1%) were intI-positive. Among them 61.5% originated from raw sewage, 12.7% from aeration tank and 25.8% from the final effluent. All of the intI-positive strains were multiresistant, i.e. resistant
Joanna Mokracka, Ryszard Koczura
exaly +3 more sources
Transcription of integron‐harboured gene cassette impacts integration efficiency in class 1 integron
Molecular Microbiology, 2011SummaryClass 1 integrons play important roles in the dissemination of antibiotic resistance genes among bacteria. Generally, class 1 integron consists of an integrase gene (intI1), a recombination site (attI1) and a promoter (Pc) that drives the transcription of the downstreamed gene cassettes.
Quhao, Wei +6 more
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Current Microbiology, 2010
The antimicrobial resistance and the character of integrons were determined in 58 Shigella flexneri strains isolated from China. All isolates were multi-drug resistant and found to carry integrons of class 1 (94.8%), class 2 (100%), or both (94.8%). No intI3 was detected.
Jing Yuan, Zhu +4 more
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The antimicrobial resistance and the character of integrons were determined in 58 Shigella flexneri strains isolated from China. All isolates were multi-drug resistant and found to carry integrons of class 1 (94.8%), class 2 (100%), or both (94.8%). No intI3 was detected.
Jing Yuan, Zhu +4 more
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Identification and Characterization of Class 1 Integrons in Bacteria From an Aquatic Environment.
Journal of Antimicrobial Chemotherapy, 1999In a survey of 3000 Gram-negative bacteria isolated from an estuarine environment over a 2 month period, the incidence of class 1 integrons was determined to be 3.6%. Of 85 integrons studied further, 11 lacked both the qacEdelta1 and sull genes usually present in the 3' conserved segment of the integron. The qacEdelta1 and sull genes were identified in
Susan J Rosser, H K Young
exaly +3 more sources
Class 1 integrons as invasive species
Current Opinion in Microbiology, 2017Clinical class 1 integrons are a major contributor to the evolution and dissemination of antibiotic resistance. The conserved motifs of these integrons suggest that a single, recent ancestor gave rise to all current variants. They have had a spectacular increase in distribution and abundance over the last 100 years, exhibiting many similarities to ...
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Diagnostic Microbiology and Infectious Disease, 2010
During 2003 to 2004, class 1 integron was detected in 8 out of 10 tested enterococci isolates, with 2 of them positive for class 2 integron. This is the first report of class 2 integron in Enterococcus faecalis and class 1 integron in Enterococcus faecium.
Zhenbo, Xu +7 more
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During 2003 to 2004, class 1 integron was detected in 8 out of 10 tested enterococci isolates, with 2 of them positive for class 2 integron. This is the first report of class 2 integron in Enterococcus faecalis and class 1 integron in Enterococcus faecium.
Zhenbo, Xu +7 more
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Molecular Diversity and Conjugal Transferability of Class 2 Integrons Among Escherichia coli Isolates From Food, Animal and Human Sources [PDF]
International Journal of Antimicrobial Agents, 2018 Integrons are genetic platforms able to excise, integrate and express antibiotic resistance gene cassettes (GCs). Here we investigated the complete genetic organisation, genetic environment, location and conjugative transferability of a collection of ...
Daniela Centron +2 more
exaly +2 more sources
Detection and Characterization of Class 1 Integrons in Enterohemorrhagic Escherichia coli
Microbial Drug Resistance, 2002Enterohemorrhagic Escherichia coli (EHEC) strains isolated from humans, cattle, and food and belonging to serogroups O26 (7 strains), O111 (19 strains), and O157 (70 strains) were examined for susceptibility to 11 antimicrobial drugs. Fifty-nine strains showing resistance to at least
Morabito S +4 more
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Study on the excision and integration mediated by class 1 integron in Enterococcus faecalis
Microbial Pathogenesis, 2017Recognized as a mobile genetic element, integron is correlated to the excision and integration of exogenous genes, especially bacterial resistance genes. However, most of the investigations focused on Gram-positive bacteria with few exceptions. In this study, Enterococcus faecalis was selected to investigate the excision and integration of class 1 ...
Guangchao, Yu +6 more
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