Poster (Painel)
| 219-1 | Resistance to heavy metals and antimicrobial and biofilm formation of Escherichia coli isolates from the beaches of São Luís - Maranhão, Brazil. | | Autores: | Barros, A. L. R. (UEMA - Maranhão State UniversityUNICEUMA - University CEUMA) ; Leite, M.F.A (UEMA - Maranhão State University) ; Luz, R.L. (UEMA - Maranhão State UniversityUNICEUMA - University CEUMA) ; Pinheiro, N.C.A. (UFMA - Federal University of Maranhão) ; Carmo, M.S. (UFMA - Federal University of MaranhãoUNICEUMA - University CEUMA) ; Moraes, F.H.R. (UNICEUMA - University CEUMA) ; Figueiredo, P.M.S. (UNICEUMA - University CEUMA) |
Resumo The city of São Luís located in the State of Maranhão has inefficient treatment of their effluent, released into the rivers or directly on the beaches, official data indicate about 10% of all sewage treatment. This study evaluated the resistance of 39 isolates of Escherichia coli to Cu, Ni, Cd e Hg, their susceptibility to antibiotics and ability of biofilm production. Samples were collected from the beaches of Ponta D'Areia, São Marcos, Calhau and Olho d’Água. The antibiotic susceptibility was performed by disk diffusion method with the following antibiotics: Aztreonam (ATM), Imipenem (IMP), Cephalothin (KF); Ampicillin / Sulbactam (ASB), Gentamicin (CN), Ampicillin (AMP); Cefuroxime Sodium (CXM), Amoxicillin (AML); Piperacillin Tazobactam (TZP), Trimethoprim-sulfamethoxazole (SXT), Amoxicillin + Clavulanic acid (AMC). The detection of biofilms production were performed in Congo Red Agar (CRA) and spectrophotometry (ESP). The results showed 02 strains Hg tolerant (1 mM), 09 strains resistant to Cu and Cd (4 mM) and 12 strains resistant to Ni (4 mM). The antibiotic susceptibility te |