Results 141 to 150 of about 6,168 (178)

Class 1 Integrons, Gene Cassettes, Mobility, and Epidemiology

European Journal of Clinical Microbiology & Infectious Diseases, 1999
Integrons are genetic elements that, although unable to move themselves, contain gene cassettes that can be mobilized to other integrons or to secondary sites in the bacterial genome. The majority of approximately 60 known gene cassettes encode resistance to antibiotics. Recently, a number of gene cassettes encoding extended-spectrum beta-lactamases or
A C, Fluit, F J, Schmitz
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Atypical Class 1 Integron Coexists with Class 1 and Class 2 Integrons in Multi-Drug Resistant Shigella flexneri Isolates from China

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, Guang Cai, Duan, Hai Yan, Yang, Qing Tang, Fan, Yuan Lin, Xi   +4 more
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Transcription of integron‐harboured gene cassette impacts integration efficiency in class 1 integron

Molecular Microbiology, 2011
SummaryClass 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, Xiaofei, Jiang, Min, Li, Xiaoyun, Chen, Gang, Li, Ru, Li, Yuan, Lu   +6 more
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Temperature affects variations of class 1 integron during sludge anaerobic digestion

Bioresource Technology, 2022
Revealing class 1 integron characteristics under different operating conditions is of great importance to control antibiotic resistance genes (ARGs) during sludge anaerobic digestion (AD). This study investigated the variations of class 1 integrons and the ARGs carried by class 1 integrons in anaerobic sludge digesters under 25 °C, 35 °C, and 55 °C ...
Yan, Zhang, Yu-Ao, Su, Xuyang, Qiu, Qiuyan, Mao, Hongbo, Liu, He, Liu, Donghui, Wen, Zhiguo, Su   +7 more
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Distribution of class 1 integrons among enteropathogenicEscherichia coli

Canadian Journal of Microbiology, 2012
The aim of this study was to investigate the incidence of and resistance gene content of class 1 integrons among enteropathogenic Escherichia coli (EPEC) and non-EPEC and to investigate intraspecies genetic diversity of EPEC strains isolated from children with diarrhea in Iran.
Najibi, S, Bakhshi, B, Fallahzad, S, Pourshafie, M R, Katouli, M, Sattari, M, Alebouyeh, M, Tajbakhsh, M   +7 more
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Distribution of class 1 integrons in a highly impacted catchment

Science of The Total Environment, 2016
Polluted 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, Klaus Harms, Pål Jarle Johnsen, Kaare Magne Nielsen, Lorenzo Brusetti   +4 more
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A comparative study of class 1 integrons in Acinetobacter baumannii

Gene, 2014
Multidrug resistance (MDR) in Acinetobacter baumannii is increasingly reported and has become a significant public concern. The method responsible for the acquisition of resistance genes via integrons from the environment or intra-species in A. baumannii remains to be understood.
Liu, Chih-Chin, Tang, Chuan Yi, Chang, Kai-Chih, Kuo, Han-Yueh, Liou, Ming-Li   +4 more
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Class 1 integrons as invasive species

Current Opinion in Microbiology, 2017
Clinical 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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First report of class 2 integron in clinical Enterococcus faecalis and class 1 integron in Enterococcus faecium in South China

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, Lin, Li, Mark E, Shirtliff, Brian M, Peters, Yi, Peng, Mohammad Jahangir, Alam, Shinji, Yamasaki, Lei, Shi   +7 more
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Diversity of class 1 integrons in an aquatic ecosystem

2022
The emergence and rapid dissemination of antibiotic resistance is a most striking example of evolution in action, driven by lateral gene transfer. Lateral movement of genetic information is largely mediated by mobile genetic elements such as plasmids, transposons, integrons and genomic islands. These elements are able to move within or between genomes,
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