98%
921
2 minutes
20
Elevated detection rates of the gene in animals have been reported as a result of antibiotic misuse in clinics. To investigate the horizontal transfer mechanism of and its associated mobile genetic elements (MGEs), we isolated 318 nonrepetitive strains of () from bovine samples in Xinjiang and Gansu provinces, China. All strains were screened for the gene using PCR. The complete genomic data were sequenced using the PacBio triplet sequencing platform and corrected using the Illumina data platform. The genetic environment of the plasmids carrying the resistance gene was mapped using the software Easyfig2.2.3 for comparison. The results showed that all -positive strains were resistant to multiple antibiotics. Five strains of carry the gene, which is adjacent to other resistance genes and is located on the IncHI2-type plasmid. Four of the five -harbor strains carried translocatable units (TUs). All the donor bacteria carrying the genes could transfer horizontally to the recipient ( J53 Azr). This study demonstrates that the transmission of is localized on IS-flanked composite transposons. The cotransmission and prevalence of with other MDR resistance genes on epidemic plasmids require enhanced monitoring and control.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10673294 | PMC |
http://dx.doi.org/10.3390/microorganisms11112795 | DOI Listing |
Transbound Emerg Dis
July 2025
MOE Joint International Research Laboratory of Animal Health and Food Safety, Risk Assessment Center of Veterinary Drug Residue and Antimicrobial Resistance, Center for Veterinary Drug Research and Evaluation, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China.
Linezolid and penicillin are critical for treating multidrug resistant (MDR) Gram-positive infections, but the emergence of resistance to both seriously threatens public health. Here, we first report the cocarrying (oxazolidinone resistance) and (β-lactam resistance) genes by the plasmid in a strain of HDC14-2 derived from porcine. The isolate also exhibits MDR phenotypes to phenicols, oxazolidinones, tetracyclines, β-lactams, aminoglycosides, macrolides, and lincosamides.
View Article and Find Full Text PDFJ Antimicrob Chemother
December 2024
College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China.
Objectives: This study aimed to explore the evolutionary patterns and resistance mechanisms of an Enterococcus faecalis strain harbouring poxtA under linezolid exposure.
Methods: A poxtA-carrying E. faecalis electrotransformant DJH702 with a linezolid minimum inhibitory concentration of 4 mg/L was exposed to increasing concentrations of linezolid (8-64 mg/L).
mLife
March 2024
State Key Laboratory of Microbial Resources, Institute of Microbiology Chinese Academy of Sciences Beijing China.
Insertion sequences (ISs) promote the transmission of antimicrobial resistance genes (ARGs) across bacterial populations. However, their contributions and dynamics during the transmission of resistance remain unclear. In this study, we selected IS as a representative transposable element to decipher the relationship between ISs and ARGs and to investigate their transfer features and transmission trends.
View Article and Find Full Text PDFVet Microbiol
May 2024
State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin 150069, China. Electronic address:
The optrA gene encodes an ABC-F protein which confers cross-resistance to oxazolidinones and phenicols. Insertion sequence ISVlu1, a novel ISL3-family member, was recently reported to be involved in the transmission of optrA in Vagococcus lutrae. However, the role of ISVlu1 in mobilizing resistance genes has not yet fully explored.
View Article and Find Full Text PDFMicroorganisms
November 2023
Key Laboratory of New Animal Drug Project of Gansu Province, Lanzhou 730050, China.
Elevated detection rates of the gene in animals have been reported as a result of antibiotic misuse in clinics. To investigate the horizontal transfer mechanism of and its associated mobile genetic elements (MGEs), we isolated 318 nonrepetitive strains of () from bovine samples in Xinjiang and Gansu provinces, China. All strains were screened for the gene using PCR.
View Article and Find Full Text PDF