Detection of Integrons from Escherichia coli Isolates Obtained from Some Selected Animals in Republic of Korea

Hasan, M. M.; Tinni, Shiuly Rahman

doi:10.1007/s12088-011-0124-3

Cited by 3 publications

(2 citation statements)

References 12 publications

(10 reference statements)

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“…While our study had the limitation of only detecting cassette regions under 4 Kb in size that had intact 5’ and 3’ ends, we still amplified integron cassettes from as many as 37.3% of isolates. Our detection of 340 (31%) class 1 integron containing strains and 44(4%) class 2 integron containing strains is comparable to data from studies using a similar methodology, which reported a prevalence of integrons to be above 30% [ 21 , 33 , 34 , 35 , 36 ]. Integrons are clearly widespread in faecal E .…”

Section: Discussionsupporting

confidence: 84%

Classes 1 and 2 integrons in faecal Escherichia coli strains isolated from mother-child pairs in Nigeria

et al. 2017

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Section: Discussionsupporting

confidence: 84%

Classes 1 and 2 integrons in faecal Escherichia coli strains isolated from mother-child pairs in Nigeria

et al. 2017

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“…The prevalence of intI 1 in cattle and buffalo was 95.65% and 100.0%, respectively and the prevalence of intI 2 for cattle and buffalo was 10.86% and 15.38%, respectively. The observations are comparable to the 50% in Australia (Barlow et al, 2004) but higher than 16.77 % from Korea (Hasan, 2010), 6% from Iran (Kheiri et al 2016). However higher percentage (84.5%) was reported by Ejaz et al (2021) from Brazil.…”

Section: Antimicrobial Susceptibility Testingsupporting

confidence: 66%

Molecular Characterization and Antimicrobial Resistance Profiling of Extended Spectrum Beta-lactamase (ESBL) Producing Escherichia coli in Bovines from J and K, India

Shikha

Wazir

Rashid

et al. 2022

IJAR

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Background: Higher prevalence of ESBL producers is alarming in dairy sector. So limiting antimicrobial use may curtail the selection and persistence of predominant ESBL and conjugative plasmids among strains. The study was aimed to determine the occurrence of extended-spectrum beta-lactamase (ESBL) producing E. coli as well as their genetic diversity, antimicrobial resistance and integrons in bovines. Methods: A total of 180 faecal samples were screened for the presumptive ESBL producing E. coli isolates. All ESBL producing isolates were subjected to the screening test and were confirmed as ESBL producers by double disc. Further, these ESBL producers were tested for the presence of bla genes and those found positive were tested for multidrug resistance (MDR) by disk diffsion. MDR positive isolates were further tested for the presence of intI 1, intI 2 and intI 3 genes. Result: A total of 360 presumptive ESBL producing E. coli isolates were obtained. Out of which, 154 (42.77%) isolates were found to be resistant and were confirmed as ESBL producers. Of 154 ESBL isolates, 120 (77.92%) isolates carried the gene/s screened for blaTEM, blaCTX-M and blaSHV genes are were declared as multi drug resistant. Out of 120 MDR isolates, 59 tested positive for the integron gene.

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Genetic diversity of three classes of integrons in antibiotic-resistant bacteria isolated from Jiulong River in southern China

Lin

Liang

Zhang

et al. 2015

Environ Sci Pollut Res

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We identified antibiotic-resistant bacterial isolates from the surface waters of Jiulong River basin in southern China and determined their extent of resistance, as well as the prevalence and characterization of three classes of integrons. A phylogenetic analysis of 16S ribosomal DNA (rDNA) sequences showed that 20 genera were sampled from a total of 191 strains and the most common genus was Acinetobacter. Antimicrobial susceptibility testing revealed that the 191 isolates were all multiresistant and there were high levels of resistance to 19 antimicrobials that were tested, particularly the β-lactam, sulfonamide, amphenicol, macrolide, and rifamycin classes. Moreover, class 1 integrons were ubiquitous while only five out of 191 strains harbored class 2 integrons and no class 3 integrons were detected. The variable region of the class 1 integrons contained 30 different gene cassette arrays. Nine novel arrays were found in 65 strains, and seven strains had empty integrons. Among these 30 arrays, there were 34 different gene cassettes that included 25 resistance genes, six genes with unknown functions, two mutant transposase genes, and a new gene. The unique array dfrA1-sat2-aadA1 was detected in all five isolates carrying the class 2 integron. We found that antibiotic-resistant bacterial isolates from Jiulong River were diverse and antibiotic resistance genes associated with integrons were widespread.

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Detection of Integrons from Escherichia coli Isolates Obtained from Some Selected Animals in Republic of Korea

Cited by 3 publications

References 12 publications

Classes 1 and 2 integrons in faecal Escherichia coli strains isolated from mother-child pairs in Nigeria

Classes 1 and 2 integrons in faecal Escherichia coli strains isolated from mother-child pairs in Nigeria

Molecular Characterization and Antimicrobial Resistance Profiling of Extended Spectrum Beta-lactamase (ESBL) Producing Escherichia coli in Bovines from J and K, India

Genetic diversity of three classes of integrons in antibiotic-resistant bacteria isolated from Jiulong River in southern China

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