Methanoculleus submarinus J. Mikucki et al., 2003, Appl. Environ. Microbiol., vol. 69, p. 3311 Irregular cocci negative no data 0 Nankai-1 DSM-15122 OCM 780, SMCC 780W OCM 780, SMCC 780W 6.93 0.1 15 50 35 45 no data 0 0.8 2 0.8 2 0.1 1.7 0.1 0.4 4.8 8.7 5.1 7.7 acetate or yeast extract no data no data no data no data do not feed on no data no data no data no data no data no data do not feed on feeds feeds not determined do not feed on no data no data no data not determined do not feed on Sample from a core (BH-1) from a depth of 247 m below the sediment surface, Nankai Trough (water depth 950 m). not applicable no data not applicable not applicable not applicable yes http://aem.asm.org/content/69/6/3311.abstract