The study identifies antibiotic resistance genes and the presence of Salmonella Genomic Island 1 (SGI1) in multidrug-resistant Salmonella enterica serovar Typhimurium isolates from Italy. Key resistance genes include aadA2, pse-1, floR, tetA, and tetR, which contribute to resistance against various antibiotics.

The study characterizes three qnrS1-harbouring multidrug-resistance plasmids and identifies qnrS1-containing transposons circulating in Ho Chi Minh City, Vietnam. It reveals that qnrS1 is part of a transposon structure that includes additional resistance genes such as blaLAP-2, aacC3, sulII, tetR, tetA, and blaCTX-M-14.

The study identifies ICEApl1, an integrative conjugative element in Actinobacillus pleuropneumoniae, which contains tetracycline resistance genes tetB, tetC, tetD, and tetR. This element confers tetracycline resistance and was found in serovar 8 isolates.

The study identifies specific outer membrane protein patterns associated with antibiotic resistance in Edwardsiella tarda, highlighting the role of plasmid-encoded genes such as tetA, tetR, and catA in mediating resistance to tetracycline and chloramphenicol.

The study characterized a large antibiotic resistance plasmid, pB171_90, from EPEC strain B171, identifying several AMR genes including aadA1, sul1, tetA, tetR, qacE Δ 1, csi, hha, and traI.

The paper presents ARIBA, a tool for identifying antimicrobial resistance genes and mutations from sequencing data. It evaluates the performance of ARIBA on three datasets, demonstrating its accuracy and efficiency in detecting resistance genes and mutations in Enterococcus faecium, Shigella sonnei, and Neisseria gonorrhoeae.

The study identifies several known and novel resistance genes in wastewater-derived E. coli, highlighting the high genomic diversity and the presence of genes associated with resistance to various antibiotics.

The study identifies two tetracycline resistance genes, tetR and tetG, in Pandoraea sp. XY-2, suggesting its capability to biodegrade tetracycline.

The study identifies multiple antibiotic resistance genes in Achromobacter xylosoxidans BHW-15, including beta-lactamases, aminoglycoside-modifying enzymes, and efflux pumps, contributing to resistance against beta-lactams, aminoglycosides, and other antibiotics.

The study identifies multiple antibiotic resistance genes in Edwardsiella piscicida, including tetA, tetR, strA, strB, sulII, and catA3, which confer resistance to tetracycline, streptomycin, sulfonamides, and chloramphenicol.

The study characterizes a novel conjugative plasmid, pEPMS-18199, in Edwardsiella piscicida strain MS-18-199, which carries multiple antimicrobial resistance (AMR) genes including floR, tetA, tetR, sul2, strA, strB, arsA, and arsD, conferring resistance to phenicol, tetracycline, sulfonamide, and aminoglycoside antibiotics, as well as arsenic.

The study identified the mcr-1.1 gene in five porcine E. coli isolates, which confers resistance to colistin. The gene was found on various plasmids, including IncF, IncX4, and IncHI2, highlighting the role of mobile genetic elements in the spread of colistin resistance.

The study identifies a novel genomic island, AcGI1, carrying the carbapenem resistance gene blaIMP-14a and other resistance genes in multidrug-resistant Achromobacter xylosoxidans strains from Thailand.

The study identified various antimicrobial resistance genes in the gut microbiome of chickens raised on organic and conventional diets, including beta-lactamases, multidrug efflux systems, aminoglycoside modifying enzymes, and tetracycline resistance genes. These genes were found to be more prevalent in conventional diet samples under higher antibiotic concentrations.

The study identified multiple AMR genes in a multidrug-resistant Klebsiella pneumoniae isolate from a Red Kangaroo, including beta-lactamases (bla DHA–3, bla SHV–1, bla CTX–M–14, bla TEM–191, bla TEM–1, bla CTX–M–3), aminoglycoside resistance genes (aph(3″)-Ib, aph(6)-Id, aac(3)-IIa, aac(6′)-Ib-cr, aadA16, arr-3), quinolone resistance genes (qnrS1, qnrB2), macrolide resistance gene (mphA), sulfonamide resistance genes (sul3, sul1), dihydrofolate reductase (dfrA3, dfrA27), chloramphenicol resistance gene (floR), tetracycline resistance genes (tetG, tetR), and multidrug efflux pump (qacEΔ1).

The study identified several AMR genes in Vibrio scophthalmi strain VSc190401, including those conferring resistance to aminoglycosides, fluoroquinolones, tetracyclines, and polymyxins. Some of these genes were validated experimentally.

The study identified various AMR genes and mutations in E. coli isolates from different animal sources, highlighting the presence of ESBL genes such as bla CTX-M-15, bla TEM-1B, and bla CMY-28, as well as mutations in parC and gyrA that confer resistance to fluoroquinolones.

The study identified ESBL-producing E. coli in wild boar and wild ruminants with a low prevalence. The most prevalent ESBL type was CTX-M-1. The study also found resistance genes for aminoglycosides, phenicol, sulfonamides, and tetracyclines.

The study identifies tetC, tetR, and strAB as the genes responsible for oxytetracycline and streptomycin resistance in Xanthomonas arboricola pv. pruni. These genes are located on a multidrug-resistant plasmid and can be transferred to other bacterial species via conjugation.

The study characterizes the tetracycline resistance mechanism involving the tet operon in E. coli, highlighting the role of TetA efflux pump and TetR repressor in regulating resistance. It reveals how transient growth in the colony interior enhances resistance gene expression, contributing to population-level resistance.

The study characterizes the tetracycline resistance mechanism involving the tet operon in E. coli, highlighting the role of TetA efflux pump and TetR repressor in regulating resistance. It reveals how transient growth in the colony interior enhances resistance gene expression, contributing to population-level resistance.

The study identified ESBL/AmpC-producing E. coli on a dairy farm, with a high prevalence in calves. Key resistance genes included blaCTX-M-1, blaCTX-M-15, floR, strA, strB, catA, aadA, dfrA, tetA, tetR, tetY, mph(A), and TEM-105.

The study identifies 63 different AMR genes in 90 S. Typhimurium isolates from Peru, including beta-lactamases (blaTEM-181, blaSHV-12, blaSHV-134, blaCTX-M-15), quinolone resistance genes (qnrB5, qnrB19, qnrE2), tetracycline resistance genes (tetA, tetD, tetR), sulfonamide resistance genes (sul3), dihydrofolate reductase (dfrA1, dfrA12), florfenicol resistance gene (floR), lincomycin resistance gene (linG), aminoglycoside resistance genes (aph(3″)-Ib, aph(6)-Id, aadA2), colistin resistance gene (mcr-1), and fosfomycin resistance gene (fosA3).

The study identified several AMR genes in Histophilus somni isolates, including bla ROB - 1, aphA-1, strA, strB, tetH, and tetR, which are associated with resistance to ampicillin, amoxicillin, kanamycin, streptomycin, and oxytetracycline. These genes were found in isolates from respiratory diseases and were linked to increased MICs.

The study identified multiple antibiotic resistance genes (ARGs) in 47 Acinetobacter baumannii isolates from India, including blaOXA-23, blaADC-73, aac(3)-I, aadA, aph(3')-Ib, sul1, sul2, and lpsB. These genes contribute to resistance against carbapenems, cephalosporins, aminoglycosides, sulfonamides, and polymyxins.

The paper discusses the presence of antibiotic resistance genes (ARGs) in bivalve molluscs, highlighting the spread of resistance to various antibiotics such as colistin, beta-lactams, fluoroquinolones, and tetracyclines. It emphasizes the role of bivalve aquacultures in the dissemination of ARGs and the potential risks to human health through the food chain.

The study identified several AMR genes, including APH(3'), CTX-M-14, ArnA, MdtL, CatB2, TetQ, TetR, Cas1, and Cas9, in the cecal microbiota of pigs raised with and without antibiotics. These genes were associated with resistance to aminoglycosides, beta-lactams, polymyxin, tetracycline, and other antibiotics.

The study identifies several AMR genes and mutations associated with streptomycin, kasugamycin, gentamicin, and oxytetracycline resistance in plant pathogenic bacteria, highlighting the role of Tn 5393 and other mobile genetic elements in the dissemination of these resistance traits.

The study identifies three plasmids in the tetracycline-resistant strain B. thermosphacta BT469, including pBT469-2 carrying the tet(L) gene responsible for tetracycline resistance and pBT469-1 containing the tetR and qacH genes.

The study identified multiple antimicrobial resistance genes in the multidrug-resistant Salmonella Enteritidis strain 27A, including beta-lactamase blaTEM-194, aminoglycoside resistance genes aac(6)-Ib, aac(6)-If, aph(3”)-Ib, and aph(6)-Id, tetracycline resistance genes tetA, tetR, and tet34, and efflux pump genes acrA, acrB, tolC, oprM, mexE, mexF, macB, mdtG, mdtH, mdtL, mdtM, mdtK, rosA, emrA, emrR, ykkc, and vanRA.

The study identified the tetracycline resistance gene tetE and the quinolone resistance gene qnrB in Aeromonas salmonicida AG2.13.2 and Aeromonas rivipollensis AG2.13.5, indicating their resistance to tetracycline, oxytetracycline, and quinolones.

The study found that tulathromycin metaphylaxis increased the isolation of multidrug-resistant (MDR) Mannheimia haemolytica (MH) in stocker heifers. MDR MH isolates were associated with integrative conjugative elements (ICE) carrying antimicrobial resistance genes.

The study identified mutations in the acrB gene leading to upregulation of the efflux pump and mutations in the tetR gene causing loss of TetR function, both contributing to tetracycline resistance in E. coli under different drug administration regimens.

The study demonstrates that non-pathogenic E. coli can acquire an IncB/O-plasmid carrying multiple antimicrobial resistance genes through conjugation on poultry meat, even at low temperatures. This highlights the potential risk of antimicrobial resistance spread through food products.

The study presents a mathematical model explaining how the expression of tetracycline resistance genes (tetA and tetR) interacts with cellular metabolism to influence heterogeneity in bacterial responses to antibiotics.

The study identified multiple antimicrobial resistance genes in multidrug-resistant E. coli strains isolated from mastitis-induced mice, highlighting the complex resistome and potential for horizontal gene transfer.

Synonymous codon substitutions in the cat gene can increase tetR expression by activating an intragenic TSS, leading to higher TetR protein levels and subsequent repression of cat transcription.

The study identified various antimicrobial resistance genes in Enterobacteriaceae isolated from colorectal cancer patients and healthy controls, including ampC2, ampH, strA, strB, mphA, sul1, sul2, tetA, tetR, and dfrA14.

The study identified 48 antimicrobial resistance genes (ARGs) in 39 carbapenem-resistant Acinetobacter baumannii (CRAB) isolates, including blaOXA-66, blaOXA-23, blaADC-30, blaADC-73, gyrA, ant(3")-IIa, aph(3")-Ib, aph(6)-Id, tetB, tetR, sul1, sul2, LpsB, LpxC, and LpxA, which confer resistance to various antibiotics such as carbapenems, cephalosporins, fluoroquinolones, aminoglycosides, tetracycline, and sulfonamides.

The study identified multiple AMR genes in multidrug-resistant E. coli isolates from Taihe Black-Boned Silky Fowl farms, including blaTEM, blaOXA-10, tetA, tetR, floR, cmlA, qnrS, strA, strB, aadA, aac(3)-IId, sul, and dfrA. These genes were associated with resistance to beta-lactams, tetracyclines, chloramphenicol, fluoroquinolones, aminoglycosides, and sulfonamides.

The study identified several antimicrobial resistance genes in Escherichia albertii isolates, including beta-lactamases (bla CTX-M-55, bla TEM-105), quinolone resistance genes (qnrS1, qnrB32), sulfonamide resistance gene (sul2), tetracycline resistance genes (tetA, tetR), and trimethoprim resistance gene (dfrA1).

The study identified mutations in the acrB gene that enhance tetracycline efflux and loss-of-function mutations in tetR that result in constitutive expression of the TetA efflux pump, both contributing to increased tetracycline resistance in E. coli.

The study identified multiple antibiotic resistance genes and mutations in E. coli isolates from intensive pig farming in South Africa, highlighting the spread of resistance across the pork production continuum.

The study identified 60 antibiotic resistance genes in the highly virulent Aeromonas dhakensis strain CWH5, including genes conferring resistance to multiple drug classes such as beta-lactams, tetracyclines, sulfonamides, and macrolides.

The study identifies antibiotic resistance genes (ARGs) on plasmids within the honey bee gut microbiome, revealing that these plasmids exhibit broad host range and are involved in the horizontal transfer of ARGs between microbial hosts.

The study identified high levels of antimicrobial resistance in bacterial isolates from finfish aquaculture in Thailand, with particular emphasis on beta-lactam, tetracycline, and fluoroquinolone resistance in Gram-negative bacteria, and beta-lactam, macrolide, fluoroquinolone, and peptide resistance in Gram-positive bacteria. Unique resistance gene families, such as the SMR efflux pump and OXA beta-lactamase, were found in Aeromonas spp. and V. vulnificus.

The study identified several antimicrobial resistance genes in E. coli isolates from diarrheic calves in the Ulagai region of China, including sul2, TEM-1, tetR, strB, QacH, floR, and CTXM-55, which were associated with resistance to various antibiotics.

Arsenic and microplastics significantly influenced the spread of antibiotic resistance genes (ARGs) during vermicomposting, with specific genes like bla ampC, bla LRA-1, bla FEZ-1, aph(3′)-II, ermB, vanY, mefA, catA, tetX4, bla IMP-11, aadK, ant(3′)-Ih-aac(6′)-Id, ermG, bla OXA-119, tetR, vatE, smeE, mexD, bla OXA-3, amrB, tetY, class A beta-lactamase, dfrA1, alanine adenosyltransferase JOHN-1, mdtB, mdtE, and erm-41 being enriched under various treatment conditions.

The study identifies and characterizes the tetracycline resistance genes tetA and tetR from Agrobacterium tumefaciens C58, which confer resistance to tetracycline through an efflux mechanism.