Diverse aminoglycoside phosphotransferase types conferring aminoglycoside resistance in Enterobacteriaceae: A single-centre study from Northeast India

Autor: Jayalaxmi Wangkheimayum, Mohana Bhattacharjee, Bhaskar Jyoti Das, K Melson Singha, Debadatta Dhar Chanda, Deepshikha Bhowmik, Amitabha Bhattacharjee
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Indian Journal of Medical Microbiology, Vol 37, Iss 3, Pp 418-422 (2019)
ISSN: 1998-3646
0255-0857
Popis: The present study investigates the molecular basis of aph-mediated aminoglycoside resistance and their transmission dynamics in a tertiary care hospital of Northeast India. Two hundred forty one isolates (230 Escherichia coli and 11 Klebsiella pneumoniae) were collected and screened for aminoglycoside resistance genes. Various aph types were amplified using polymerase chain reaction (PCR) assay. Plasmid incompatibilty, horizontal transferability and ERIC-PCR based typing were carried out for all the positive isolates. Among them, 67 isolates showed the presence of aph gene. Aph (3“)-IIIa and aph (3')-Via were predominant and horizontally transferable. All the plasmids were of incompatibility I1 group. Twenty-eight different haplotypes of E. coli were found harbouring aph gene types. This study was able to identify diverse aph types in a single centre and their corresponding phenotypic trait.
Databáze: OpenAIRE