For the determination of the G+C content, DNA was
isolated after disruption of cells using a French pressure
cell (Thermo Spectronic) and purified by hydroxyapatite
chromatography (Cashion et al., 1977). The DNA was
hydrolysed with P1 nuclease and the nucleotides dephosphorylated
with bovine alkaline phosphatase (Mesbah
et al., 1989). The G+C content of the DNA of strain
CIR29812T determined by the HPLC method described by
Tamaoka & Komagata (1984) was 46 mol%.