The DNA from an M. goodii strain SB 314/96 isolate
was extracted by lysis with cetyltrimethylammonium
bromide (CTAB), according to Sambrook & Russell
(2001). Molecular diagnosis was performed by analysis
of the partial sequencing of triplicate DNA product of
approximately 1500 bp amplified from the 16S rRNA
gene using universal primers (Fredricks & Relman, 1998).
The PCR product was sequenced with ACT Gene Ana´ lises
Moleculares LTDA (Centro de Biotecnologia) using an
automatic sequencer ABI-PRISM 3100 Genetic Analyzer
(Applied Biosystems). The sequences were submitted to a
consensus analysis based on chromatogram reliability
obtained with the Staden Package Gap 4 program
(Staden et al., 2000) and alignment by National
Center for Biotechnology Information BLAST with DNASIS
software (v.2.5; Hitachi Software Engineering Co.). In
order to confirm the identification of the isolate as M.
goodii, we performed a phylogenetic analysis based on the
16S rRNA gene using the neighbour-joining method. In
order to calculate the evolutionary distances and the
pairwise deletion of gaps, the p-distance was implemented
with MEGA v.5.2.2 software.