Other numbers: ATCC 17724, CCUG 20334, CCUG 1780, CIP 103304, DSM 63, LMG 2366, D.Davis 1-6-1, R.Y. Stanier 362. Taxonomic status: Type strain. History: < LMG < B. Contopoulos < D. Davis. Isolated from: Water enriched for isolation of hydrogen bacteria in an atmosphere of 6% O2. Additional information: Type (5983). Chemolithotrophic growth with hydrogen (5985). Culture contains two stable colony types giving identical gelelectrophoretic protein patterns (SDS-PAGE). Cultivation conditions: Medium 65 or 91 without blood, 30°C.