Cetobacterium ceti
{{Short description|Species of bacterium}}
{{Italic title}}
{{Taxobox
| name = Cetobacterium ceti
| domain = Bacteria
| phylum = Fusobacteriota
| classis = Fusobacteriia
| ordo =Fusobacteriales
| familia = Fusobacteriaceae
| genus = Cetobacterium
| genus_authority =
| species = C. ceti
| binomial = Cetobacterium ceti
| binomial_authority = Foster et al. 1996{{cite journal |last1=Parte |first1=A.C. |title=Cetobacterium |website=LPSN |url=https://lpsn.dsmz.de/genus/cetobacterium}}
| type_strain = ATCC 700028, NCFB 3026, NCIMB 703026, strain M-3333{{cite journal |title=Cetobacterium ceti |website=www.uniprot.org |url=https://www.uniprot.org/taxonomy/180163 |language=en}}
| subdivision =
| synonyms =
}}
Cetobacterium ceti is a Gram-negative, and rod-shaped obligately anaerobic bacterium from the genus of Cetobacterium which has been isolated from sea mammals. Cetobacterium ceti represents a hitherto unknown line of descent peripherally associated to the fusobacteria and low G + C relatives. There is no growth of Cetobacterium ceti at 25°C or 45°C.{{cite journal |last1=Foster |first1=G. |title=Cetobacterium ceti gen. nov., sp. nov., a new Gram-negative obligate anaerobe from sea mammals |journal=Letters in Applied Microbiology |volume=21 |issue=3 |pages=202–206 |doi=10.1111/j.1472-765X.1995.tb01041.x |year=1995 |pmid=7576509 |s2cid=822479 }}{{cite journal |last1=Parker |first1=Charles Thomas |last2=Garrity |first2=George M |editor1-first=Charles Thomas |editor1-last=Parker |editor2-first=George M |editor2-last=Garrity |title=Taxonomic Abstract for the species |journal=The NamesforLife Abstracts |date=1 January 2003 |doi=10.1601/tx.8395 |language=en}}{{cite journal |last1=Foster |first1=G |last2=Ross |first2=HM |last3=Naylor |first3=RD |last4=Collins |first4=MD |last5=Ramos |first5=CP |last6=Fernandez Garayzabal |first6=F |last7=Reid |first7=RJ |title=Cetobacterium ceti gen. nov., sp. nov., a new gram-negative obligate anaerobe from sea mammals |journal=Letters in Applied Microbiology |date=September 1995 |volume=21 |issue=3 |pages=202–6 |pmid=7576509 |doi=10.1111/j.1472-765x.1995.tb01041.x|s2cid=822479 }}
Vitamin B12 biosynthesis
The Cetobacterium is a common gastrointestinal bacterium found in dolphins and includes two species: C. somerae and C. ceti.
A recent study, that was carried out on the common bottlenose dolphins, has shown that Cetobacterium ceti has the ability to biosynthesize vitamin B12. The vitamin is later used to synthesize haem, which is an important component of haemoglobin and myoglobin. This helps to prolong their diving time, by storing more oxygen in their muscles.{{cite web |last1=Suzuki |first1=Akihiko |title=Vitamin B12 biosynthesis of Cetobacterium ceti isolated from the intestinal content of captive common bottlenose dolphins (Tursiops truncatus) |url=https://doi.org/10.1099/mic.0.001244 |website=Microbiology society |publisher=Microbiology |access-date=30 September 2022}}