A novel method for the isolation of mycobacterial DNA

Jorge A. Gonzalez-Y-Merchand, Iris Estrada-Garcia, M. Joseph Colston, Robert A. Cox

Resultado de la investigación: Contribución a una revistaArtículo

27 Citas (Scopus)


DNA was isolated from mycobacteria by a simplified procedure. Cells were suspended in 6 M guanidinium chloride, the suspension was cooled to -70°C, then incubated at 65°C for 10 min, cooled in ice, deproteinized by chloroform and DNA was recovered from the supernatant. The procedure was used to obtain DNA from several mycobacteria (1 X 109 or more cells) including Mycobacterium neoaurum, M. fortuitum, M. phlei and M. smegmatis. Each of the species was shown to have two ribosomal RNA operons per genome, and preliminary evidence was obtained which suggests that one of these operons is homologous with one of the operons of M. smegmatis.
Idioma originalInglés estadounidense
Páginas (desde-hasta)71-77
Número de páginas63
PublicaciónFEMS Microbiology Letters
EstadoPublicada - 1 ene 1996

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