Detecção e identificação de micobactérias em corpos de água destinados à captação para abastecimento urbano da cidade de São Carlos-SP

Detalhes bibliográficos
Ano de defesa: 2006
Autor(a) principal: Kanai, Karina Yuri
Orientador(a): Moraes, Gilberto lattes
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal de São Carlos
Programa de Pós-Graduação: Programa de Pós-Graduação em Ecologia e Recursos Naturais - PPGERN
Departamento: Não Informado pela instituição
País: BR
Palavras-chave em Português:
Palavras-chave em Inglês:
Área do conhecimento CNPq:
Link de acesso: https://repositorio.ufscar.br/handle/20.500.14289/1905
Resumo: Fifty-nine water samples from Feijão River, Monjolinho River and the Water Treatment Station (SAAE) were analyzed, and 51 were positive for mycobacteria. Concerning the two procedures of decontamination, we obtained 83.0% of positive samples isolated with sulfuric acid and 39.0% with cetylpyridinium chloride. We recovered 425 strains of mycobacteria, and 402 were characterized concerning growth rate and pigment production. In drinking water samples there were predominance of mycobacteria with slow growth, wherein 66.7% were scotochromogenics species and 47.5% were identified as M. lentiflavum. The identification was done through biochemical tests and phenotypics features (classical methodology), micolic acid analyses by thinlayer chromatography (TLC) and PCR-Restriction Analysis (PRA). Through the classical methodology associated to TLC 33.3% of the mycobacteria were identified and 18 species were defined. From the 402 mycobacteria 93 strains were selected and submitted to PRA, being 35 identified by the classical and molecular methodology, 51 only identified by PRA and 40% remained obscure concerned identification. The PRA pattern 440 in BstEII and 130/110 in HaeIII was defined as M. new. This pattern was found for 24 strains. For an accurate identification, the association of different methodologies is necessary.