Corrigendum to ‘Characterisation of a mobilisable plasmid conferring florfenicol and chloramphenicol resistance in Actinobacillus pleuropneumoniae’ [Veterinary Microbiology 178 (2015) 279–282]

Bossé, Janine T.; Li, Yanwen; Atherton, Tom; Walker, Stephanie; Williamson, Susanna; Rogers, Jon; Chaudhuri, Roy R.; Weinert, Lucy A.; Holden, Matthew T. G.; Maskell, Duncan J.; Tucker, Alexander W.; Wren, Brendan W.; Rycroft, Andrew N.; Langford, Paul

doi:10.1016/j.vetmic.2015.07.002

Cited by 3 publications

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“…They are highly homologous to transposon Tn5393, plasmid with floR from E. coli 10660, and transposon Tn1721, respectively. The floR in pM3446F of these Pasteurellaceae plasmids was described as a transposable element encoding floR, transcriptional regulator lysR, and transposase tnpA genes initially (Bossé et al, 2015b). Zhang et al confirmed that an IncA/C plasmid carrying the multiresistance gene cfr in a porcine E. coli strain was flanked by two copies of IS256 (Zhang et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

Analysis of Resistance to Florfenicol and the Related Mechanism of Dissemination in Different Animal-Derived Bacteria

Zhu

Zhou

et al. 2020

Front. Cell. Infect. Microbiol.

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Bacterial resistance to antibiotics has become an important concern for public health. This study was aimed to investigate the characteristics and the distribution of the florfenicol-related resistance genes in bacteria isolated from four farms. A total of 106 florfenicol-resistant Gram-negative bacilli were examined for florfenicol-related resistance genes, and the positive isolates were further characterized. The antimicrobial sensitivity results showed that most of them (100, 94.33%) belonged to multidrug resistance Enterobacteriaceae. About 91.51% of the strains carried floR gene, while 4.72% carried cfr gene. According to the pulsed-field gel electrophoresis results, 34 Escherichia coli were subdivided into 22 profiles, the genetic similarity coefficient of which ranged from 80.3 to 98.0%. The multilocus sequence typing (MLST) results revealed 17 sequence types (STs), with ST10 being the most prevalent. The genome sequencing result showed that the Proteus vulgaris G32 genome consists of a 4.06-Mb chromosome, a 177,911-bp plasmid (pG32-177), and a 51,686-bp plasmid (pG32-51). A floR located in a drug-resistant region on the chromosome of P. vulgaris G32 was with IS91 family transposase, and the other floR gene on the plasmid pG32-177 was with an ISCR2 insertion sequence. The cfr gene was located on the pG32-51 flanked by IS26 element and TnpA26. This study suggested that the mobile genetic elements played an important role in the replication of resistance genes and the horizontal resistance gene transfer.

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Section: Discussionmentioning

confidence: 99%

Analysis of Resistance to Florfenicol and the Related Mechanism of Dissemination in Different Animal-Derived Bacteria

Zhu

Zhou

et al. 2020

Front. Cell. Infect. Microbiol.

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Antimicrobial Resistance inPasteurellaceaeof Veterinary Origin

2018

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Members of the highly heterogeneous family cause a wide variety of diseases in humans and animals. Antimicrobial agents are the most powerful tools to control such infections. However, the acquisition of resistance genes, as well as the development of resistance-mediating mutations, significantly reduces the efficacy of the antimicrobial agents. This article gives a brief description of the role of selected members of the family in animal infections and of the most recent data on the susceptibility status of such members. Moreover, a review of the current knowledge of the genetic basis of resistance to antimicrobial agents is included, with particular reference to resistance to tetracyclines, β-lactam antibiotics, aminoglycosides/aminocyclitols, folate pathway inhibitors, macrolides, lincosamides, phenicols, and quinolones. This article focusses on the genera of veterinary importance for which sufficient data on antimicrobial susceptibility and the detection of resistance genes are currently available (, ,, , and). Additionally, the role of plasmids, transposons, and integrative and conjugative elements in the spread of the resistance genes within and beyond the aforementioned genera is highlighted to provide insight into horizontal dissemination, coselection, and persistence of antimicrobial resistance genes. The article discusses the acquisition of diverse resistance genes by the selected members from other Gram-negative or maybe even Gram-positive bacteria. Although the susceptibility status of these members still looks rather favorable, monitoring of their antimicrobial susceptibility is required for early detection of changes in the susceptibility status and the newly acquired/developed resistance mechanisms.

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Antibiotic Resistance of Bacteria of the Family Pasteurellaceae, Pathogens of Respiratory Infections of Cattle and Pigs

Stetsko¹

2021

SCIVP

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In the article a literature review of scientific papers on the topic of antimicrobial resistance of bacteria of the family Pasteurellaceae, pathogens of respiratory diseases in pigs and cattle, is presented. The main mechanisms of the development of Pasteurellaceae resistance to β-lactam antibiotics are the synthesis of β-lactamases by bacteria, what are able to break the beta-lactam ring, thereby inactivating β-lactams, or alteration of the penicillin-binding proteins structure. Other mechanisms, such as reduced permeability of the outer membrane or the process of active removal of antibiotics from the bacterial cell (efflux), are very rare. Resistance among Pasteurellaceae to β-lactams is often associated with plasmids. Eflux and ribosomal protection are the main mechanisms for the development of resistance of Pasteurellaceae to tetracyclines. At least nine tetracycline resistance genes (tet genes) have been identified in bacteria of the genus Pasteurella, Mannheimia, Actinobacillus and Haemophilus, what encode these processes. Resistance to aminoglycosides and aminocyclitols is mainly caused by enzymatic inactivation of antibiotics, as well as through mutations in chromosomal genes. Many plasmids carry genes of resistance to aminoglycosides, causing resistance to antibiotics of other groups. Chemical modification of a ribosomal target by rRNA methylases and mutations in ribosomal proteins are the main resistance mechanisms of bacteria of the family Pasteurellaceae to macrolides. Many gram-negative bacteria have a natural resistance to macrolide antibiotics. The development of lincosamide resistance is influenced by methyltransferase 23S rRNA, active efflux proteins, enzymatic inactivation and chromosomal mutations. Resistance of bacteria of the family Pasteurellaceae to chloramphenicol is caused mainly by enzymatic inactivation, while the emergence of resistance to fluorophenicol is associated with the efflux of an antibiotic from a bacterial cell. Plasmids carrying phenicol resistance genes were detected in isolates of P. multocida, M. haemolytica, A. pleuropneumoniae and H. parasuis. Usually the level of bacteria sensitivity of the genus Pasteurella, Mannheimia, Actinobacillus and Haemophilus to quinolones is quite high. Resistance to quinolones mainly occurs due to mutational alterations in chromosomal genes, and may also be in consequence of the export antibiotics from the cell by membrane proteins or thanks to qnr genes of plasmids. The main mechanism of resistance to sulfonamides and trimethoprim is both plasmid-mediated and mutation-induced production of altered dihydropteroate synthetase and dihydrofolate reductase with reduced affinity with these antimicrobials. Monitoring of antibiotic resistance with the determination of its mechanism phenomenon will facilitate the choice of an effective agent of etiotropic therapy of respiratory diseases of cattle and pigs caused by bacteria of the family Pasteurellaceae.

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Corrigendum to ‘Characterisation of a mobilisable plasmid conferring florfenicol and chloramphenicol resistance in Actinobacillus pleuropneumoniae’ [Veterinary Microbiology 178 (2015) 279–282]

Cited by 3 publications

References 0 publications

Analysis of Resistance to Florfenicol and the Related Mechanism of Dissemination in Different Animal-Derived Bacteria

Analysis of Resistance to Florfenicol and the Related Mechanism of Dissemination in Different Animal-Derived Bacteria

Antimicrobial Resistance inPasteurellaceaeof Veterinary Origin

Antibiotic Resistance of Bacteria of the Family Pasteurellaceae, Pathogens of Respiratory Infections of Cattle and Pigs

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