Intérêt taxonomiquedes acides gras des mycobactéries: Proposition d'une méthode d'analyse

Autor: Hugo L. David, Veronique Levy-Frebault, Cécile P. Asselineau, Mamadou Daffé, Marie-Antoinette Lanéelle
Rok vydání: 1983
Předmět:
Zdroj: Annales de l'Institut Pasteur / Microbiologie. 134:241-256
ISSN: 0769-2609
DOI: 10.1016/s0769-2609(83)80037-4
Popis: Summary A simple and quantitative method for the alkaline hydrolysis of fattyacid derivatives occurring in the lipids of mycobacteria is described. After methylation, the lipidic mixtures were chromatographed on a thin layer of silicagel. The contents in mycolates and secondary alcohols allowed the distinction of 9 groups among the 27 species studied. Such an analysis is generally insufficient to identify a species, but its discriminating power differs from that of other commonly-used methods. Complementary tests chosen according to each particular situation are necessary, including vapour phase chromatography applied to the same lipidic mixture as that used for thin-layer chromatography. Coupling of the two chromatographic methods would allow the recognition of 22 groups among the 27 species of mycobacteria studied.
Databáze: OpenAIRE