Coleformes fecais em águas de esgoto: II- transferência de marcadores e presença de plasmidial

Memórias do Instituto Oswaldo Cruz

Ana Carolina Paulo Vicente¹  José Cavalcante De Albuquerque Ribeiro Dias¹  Ernesto Hofer¹ 

[1] ,Instituto Oswaldo Cruz Departamento de Bacteriologia Rio de Janeiro,Brasil

关键词: sewage treatment;    Escherichia coli;    R;    Col;    Cu;    Hg and Zn plasmids;    águas de esgoto;    Escherichia coli;    plasmídeos R;    Col;    Cu;    Hg e Zn;   

DOI  :  10.1590/S0074-02761988000100004

来源: SciELO

【 摘 要 】

The transference of the genetic markers and the presence of DNA plasmidial in 240 cultures of Escherichia coli was investigated. The strains were originated from Waste Treatment Plant (inffluent and effluents) located in Ilha do Governador, Rio de Janeiro. By conjugation analysis, E. coli K 12 allowed the isolation of the transconjugants resistent to antibiotics Su, Sm, Tc, Cm, Ap; heavy metals (Cu, Hg, and Zn) and colicinogenic factors (Ia, Ib and V) mainly in coliforms isolated Cm and Ap from the terminals of the treatment plant. The percentual distribution of the plasmids was prevalent in the cultures of E. coli originated from material collected in the effluents and reached a rate higher than 65%.

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