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Vol. 2. Issue 6.
Pages 409-416 (November - December 1996)
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Vol. 2. Issue 6.
Pages 409-416 (November - December 1996)
ARTIGO ORIGINAL
Open Access
Valor potencial de pesquisa de micobactinas para identificação de micobactérias na prática clínica
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Suzana Bosne-David(1), E. Fernand Papa(2)
(1) Centro de Malària e outras Doenças Tropicais THMT/Universidade Nova de Lisboa; Rua da Junqueira 96, 1300 Lisboa, Portugal.
(2) Unite de la Tuberculose et des Mycobacterias, Institut Pasteur. 75724, Paris Cedex 15, França.
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RESUMO

A produção de micobactinas foi feita utilizando o método em duas etapas do ácido ctilenadiamino-di-o-hidroxifenílacético (EDDHA). Novas propostos de sistemas de solventes foram utilizadas para analisar 17 espécies micobacterianans em cromatografia por camada fina. Todas as espécies do complexo MAIS (incluindo um exemplo de cada serotipo do complexo M. avuium) formaram micobactinas idênticas. De acordo com resultados prévios, cada uma das espécies dos groupos. M. kansasii, M. marinum, e M. terrae, M. gastri,·M.·triviale formaram microbactinas distintas. M. szulgai e M. flavescenes formaram um mesmo padrâo de micobactinas, diferente doqueles encontrados noutras espécies microbacterianas incluindo M. gordonae e M. asiaticum. Em contradição com observações precedentes sobre o complexo M. tuberculosis, as nossas investigações mostraram·diferenças nos padrões de micobactinas entre M. bovis BCG e M. tuberculosis. O método proposto para a produção de micobactinas é compatível com um esquema de identificação micobacteriana.

Palavaras-chave:
Micobactinas
espécies Mycobacterium
SUMMARY

The ethylenediamine-di-o-hydroxyphenyl-acetic acid (EDDHA) two-step method was used for mycobactin production. New solvant systems were proposed for their analysis by TLC and were used to examine 17 mycobacterial species. All the species tested within the MAIS complex (including one example from each serotype of the M. avium complex) formed identical mycobactins. Result concerning M. kansasii and M. marinam, as well, as. M. terrae, M. gastri and M. triviale were in agreement with the previous findings, i.t each specias formed a distinet mycobactin. M. szulgai and M. flavescens, formed identical mycobactin patterns, differing from those or other mycobacterial species tested including M. gordonae and M. asiaticum. Contrary to previous observations concerning the M. tuberculosis complex, our investigations showed differences between the M.· bovis BCG and M. tuberculosis mycobactin profiles. The method proposed for mycobactin production and detection is directly applicable in classical identification schemes for mycobacteria.

Key-words:
Mycobactins
Mycobacterium species
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Copyright © 1996. Sociedade Portuguesa de Pneumologia/SPP
Pulmonology
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