Phylum Firmicutes, Class Clostridia, Order Clostridiales, Family Clostridiaceae, Genus Clostridium, Cluster XI (non-Clostridium
sensu stricto), Clostridium caminithermale Brisbarre, Fardeau, Cueff, Cayol, Barbier, Cilia, Ravot, Thomas, Garcia and Ollivier 2003.
Gram-positive rods, 0.4-0.5 x 5.0-9.0 µm, occuring singly or in pairs. Cell wall is
composed of three dense layers with two thick layers and a middle thinner layer
separated by two less dense spaces. Motile by few laterally inserted flagella. Spores
are oval, subterminal, swelling the cell; spores formation was induced in the
presence of oxygen and vitamins.
Brown, circular colonies, 1-2 mm in diameter, appeared after 3 days incubation at 50
ºC in roll tubes containing basal agar medium. Strictly anaerobic. Grow in sea salt
medium 12-55 g/l, optimally in sea salt medium 30 g/l. Heterotrophic. Yeast extract is
required for growth on sugars. Grow at 20-58 ºC, optimally at 45 ºC. No growth at 60
ºC. Optimum pH 6.6; range 5.8-8.2. Ferments yeast extract, peptone, Bio-trypticase,
and Casamino acids into a mixture of volatile fatty acids.
Isolated from a North Atlantic Ocean deep-sea hydrothermal chimney.
Undetermined. Because of the ability to degrade amino acids and peptides, the possibility of harmful effects cannot be excluded.
- N.A. Logan and P. De Vos, 2009. Genus I. Clostridium Prazmowski 1880. In: (Eds.) P.D. Vos, G. Garrity, D. Jones, N.R. Krieg, W.
Ludwig, F.A. Rainey, K.-H. Schleifer, W.B. Whitman. Bergey’s Manual of Systematic Bacteriology, Volume 3: The Firmicutes,
- Brisbarre N., Fardeau M.L., Cueff V., Cayol J.L., Barbier G., Cilia V., Ravot G., Thomas P., Garcia J.L. and Ollivier B., 2003.
Clostridium caminithermale sp. nov., a slightly halophilic and moderately thermophilic bacterium isolated from an Atlantic deep-
sea hydrothermal chimney. IJSEM 53, 1043-1049.
Positive results for H2 production, ammonia production, substrate utilized and/or acid produced from: fructose, galactose, glucose,
glycerol, maltose, mannose & ribose.
Negative results for arginine dihydrolase, citrate utilization, beta-galactosidase, H2S production, indole production, nitrate reduction,
lysine decarboxylase, ornithine decarboxylase, tryptophan deaminase, urease, Voges-Proskauer reaction, substrate utilized and/or
acid produced from: arabinose, cellobiose, dulcitol, lactose, mannitol, melibiose, raffinose, rhamnose, sorbitol, starch, sucrose &
(c) Costin Stoica