Molecular characterization of virulence and antibiotic resistance genes among Salmonella serovars isolated from broilers in Egypt

2019 ◽  
Vol 68 (2) ◽  
pp. 188-195 ◽  
Author(s):  
A.M. Ammar ◽  
E.E. Abdeen ◽  
U.H. Abo-Shama ◽  
E. Fekry ◽  
E. Kotb Elmahallawy
Keyword(s):  
Antibiotic Resistance ◽  
Molecular Characterization ◽  
Resistance Genes ◽  
Antibiotic Resistance Genes ◽  
Salmonella Serovars

scholarly journals Molecular Characterization of Antibiotic Resistance Genes in Escherichia coli from Clinical and Environmental Samples in Ghana

2019 ◽  
Vol 12 (2) ◽  
pp. 356-363 ◽  
Author(s):  
Adinortey Cynthia Ayefoumi ◽  
Amewowor Damian H.A ◽  
Galyuon Isaac K.A. ◽  
Otwe Emmanuel Plas ◽  
Asante Daniel K.A ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Antibiotic Resistance ◽  
Molecular Characterization ◽  
Resistance Genes ◽  
Environmental Samples ◽  
Antibiotic Resistance Genes

scholarly journals Characterization of a Multiresistant Mosaic Plasmid from a Fish Farm Sediment Exiguobacterium sp. Isolate Reveals Aggregation of Functional Clinic-Associated Antibiotic Resistance Genes

2013 ◽  
Vol 80 (4) ◽  
pp. 1482-1488 ◽  
Author(s):  
Jing Yang ◽  
Chao Wang ◽  
Jinyu Wu ◽  
Li Liu ◽  
Gang Zhang ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Resistance Genes ◽  
Antibiotic Resistance Genes ◽  
Mobile Elements ◽  
Fish Farms ◽  
Significant Similarity ◽  
Content Type ◽  
Genes Encoding ◽  
The Mean

ABSTRACTThe genusExiguobacteriumcan adapt readily to, and survive in, diverse environments. Our study demonstrated thatExiguobacteriumsp. strain S3-2, isolated from marine sediment, is resistant to five antibiotics. The plasmid pMC1 in this strain carries seven putative resistance genes. We functionally characterized these resistance genes inEscherichia coli, and genes encoding dihydrofolate reductase and macrolide phosphotransferase were considered novel resistance genes based on their low similarities to known resistance genes. The plasmid G+C content distribution was highly heterogeneous. Only the G+C content of one block, which shared significant similarity with a plasmid fromExiguobacterium arabatum, fit well with the mean G+C content of the host. The remainder of the plasmid was composed of mobile elements with a markedly lower G+C ratio than the host. Interestingly, five mobile elements located on pMC1 showed significant similarities to sequences found in pathogens. Our data provided an example of the link between resistance genes in strains from the environment and the clinic and revealed the aggregation of antibiotic resistance genes in bacteria isolated from fish farms.

scholarly journals Characterization of Microbiota Composition and Presence of Selected Antibiotic Resistance Genes in Carriage Water of Ornamental Fish

PLoS ONE ◽  
2014 ◽  
Vol 9 (8) ◽  
pp. e103865 ◽  
Author(s):  
Lenka Gerzova ◽  
Petra Videnska ◽  
Marcela Faldynova ◽  
Karel Sedlar ◽  
Ivo Provaznik ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Resistance Genes ◽  
Antibiotic Resistance Genes ◽  
Ornamental Fish ◽  
Microbiota Composition

Characterization of Antibiotic Resistance E. Coli and Antibiotic Resistance Genes in Aquatic Environment of Taihu Lake, China

2013 ◽  
Vol 295-298 ◽  
pp. 630-634 ◽  
Author(s):  
Ni Ni Han ◽  
Song He Zhang ◽  
Pei Fang Wang ◽  
Chao Wang
Keyword(s):  
Escherichia Coli ◽  
Antibiotic Resistance ◽  
Surface Water ◽  
Resistance Genes ◽  
Taihu Lake ◽  
Antibiotic Resistance Genes ◽  
Antibiotic Resistant ◽  
E Coli ◽  
Realtime Pcr

The aims of this study are to evaluate multiple antibiotic resistant Escherichia coli isolated from surface water and to investigate the presence and distribution antibiotic resistance genes (ARGs) in sediments of Taihu Lake. The results show that the presentence of four ARGs concentrations in the sediments of the lake was in sequence: strB>qnrB>strA>qnrS, as determined by realtime-PCR technique. The southwest and east areas of Taihu Lake were polluted seriously than other areas from all kinds of antibiotics. The screening Escherichia coli had a higher resistance to streptomycin, tetracycline and ampicillin than other four antibiotics, and had a lowest resistance to levofloxacin.

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