nautilia nitratireducens sp. nov., a thermophilic, anaerobic, chemosynthetic, nitrate-ammonifying bacterium isolated from a deep-sea hydrothermal vent. | a thermophilic, anaerobic, chemosynthetic bacterium, designated strain mb-1(t), was isolated from the walls of an active deep-sea hydrothermal vent chimney on the east pacific rise at degrees 50' n 10 degrees 17' w. the cells were gram-negative-staining rods, approximately 1-1.5 mum long and 0.3-0.5 mum wide. strain mb-1(t) grew at 25-65 degrees c (optimum 55 degrees c), with 10-35 g nacl l(-1) (optimum 20 g l(-1)) and at ph 4.5-8.5 (optimum ph 7.0). generation time under optimal conditions was ... | 2010 | 19667392 |