Presence of blaTEM-116 gene in environmental isolates of Aeromonas hydrophila and Aeromonas jandaei from Brazil

Balsalobre, Livia CarminatoDropa, Milenade Oliveira, Danielle EscudeiroLincopan, NiltonMamizuka, Elsa MasaeMatté, Glavur RogérioMatté, Maria Helena

It is known that Aeromonas spp. possess different chromosomal -lactamase genes. Presence and phenotypic expression of blaTEM, blaSHV, and blaCTX-M ESBL-encoding genes were investigated in environmental water isolates of Aeromonas hydrophila and Aeromonas jandaei. Presence of blaSHV and blaCTX-M genes was not observed, and blaTEM gene was verified in 91% of the isolates. Sequencing of 10 fragments showed the occurrence of blaTEM-116.

1. environmental isolates
2. Aeromonas