Glucuronidase activity of Escherichia coli isolated from chicken carcasses

Perin, Luana Martins; Yamazi, Anderson Keizo; Moraes, Paula Mendonça; Cossi, Marcus Vinícius Coutinho; Pinto, Paulo Sérgio de Arruda; Nero, Luís Augusto

doi:10.1590/s1517-83822010000300036

Cited by 1 publication

(1 citation statement)

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“…This enzyme was chosen in this study because it was found to be specific and has been observed in more than 97% of E. coli isolates (Maheux et al, 2009), and has become an important marker for the detection of E. coli. Several studies also reported that approximately 94-96% of the b-glucuronidase enzyme is observed in E. coli strains; thus, the presence of this enzyme is useful in identifying this species (Horakova et al, 2008;Perin et al, 2010).…”

Section: Discussionmentioning

confidence: 98%

Molecular characterization of multi-drug resistant <i>Escherichia coli</i> isolates from tropical environments in Southeast Asia

Hara

Yusaimi

Zulkeflle

et al. 2018

J. Gen. Appl. Microbiol.

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The emergence of antibiotic resistance among multidrug-resistant (MDR) microbes is of growing concern, and threatens public health globally. A total of 129 Escherichia coli isolates were recovered from lowland aqueous environments near hospitals and medical service centers in the vicinity of Kuala Lumpur, Malaysia. Among the eleven antibacterial agents tested, the isolates were highly resistant to trimethoprim-sulfamethoxazole (83.7%) and nalidixic acid (71.3%) and moderately resistant to ampicillin and chloramphenicol (66.7%), tetracycline (65.1%), fosfomycin (57.4%), cefotaxime (57.4%), and ciprofloxacin (57.4%), while low resistance levels were found with aminoglycosides (kanamycin, 22.5%; gentamicin, 21.7%). The presence of relevant resistance determinants was evaluated, and the genotypic resistance determinants were as follows: sulfonamides (sulI, sulII, and sulIII), trimethoprim (dfrA1 and dfrA5), quinolones (qnrS), β-lactams (ampC and blaCTX-M), chloramphenicol (cmlA1 and cat2), tetracycline (tetA and tetM), fosfomycin (fosA and fosA3), and aminoglycosides (aphA1 and aacC2). Our data suggest that multidrug-resistant E. coli strains are ubiquitous in the aquatic systems of tropical countries and indicate that hospital wastewater may contribute to this phenomenon.

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Section: Discussionmentioning

confidence: 98%