''Mycobacterium conceptionense'' is a non pigmented rapidly growing
mycobacterium was first isolated from wound liquid outflow, bone tissue biopsy, and excised skin tissue from a 31-year-old woman who suffered an accidental open right tibia fracture and prolonged stay in a river.
Etymology
Etymology ()The New Oxford Dictionary of English (1998) – p. 633 "Etymology /ˌɛtɪˈmɒlədʒi/ the study of the class in words and the way their meanings have changed throughout time". is the study of the history of the Phonological chan ...
: conceptionense, pertaining to Hôpital de la Conception, the
hospital where the first
strain
Strain may refer to:
Science and technology
* Strain (biology), variants of plants, viruses or bacteria; or an inbred animal used for experimental purposes
* Strain (chemistry), a chemical stress of a molecule
* Strain (injury), an injury to a mu ...
was isolated.
Description
Microscopy
*
Acid-fast
Acid-fastness is a physical property of certain bacterial and eukaryotic cells, as well as some sub-cellular structures, specifically their resistance to decolorization by acids during laboratory staining procedures. Once stained as part of a sam ...
and
gram-positive
In bacteriology, gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify bacteria into two broad categories according to their type of cell wall.
Gram-positive bact ...
bacilli.
Colony characteristics
*Colonies are non pigmented.
Physiology
*Colonies appear on 5% sheep blood
agar,
Middlebrook 7H10 agar, and egg-based
Lowenstein-Jensen slants in 2 to 5
days at temperatures between 25 and 37 °C, optimally at 30 °C. No growth occurs at 42 °C.
*The type strain is susceptible in vitro to imipenem, minocycline, doxycycline, clarithromycin, erythromycin, azithromycin, amikacin, ciprofloxacin, ofloxacin, sparfloxacin, and amoxicillinclavulanate and resistant to penicillin, amoxicillin, and vancomycin.
Differential characteristics
*''M. conceptionense'' shares 99.7% 16S rRNA (4-bp difference) and 97.0% rpoB gene sequence similarity with ''
Mycobacterium porcinum'', the nearest species.
Pathogenesis
*This species is associated with post traumatic
osteitis
Osteitis is inflammation of bone. More specifically, it can refer to one of the following conditions:
* Osteomyelitis, or ''infectious osteitis'', mainly ''bacterial osteitis''
* Alveolar osteitis or "dry socket"
* Condensing osteitis (or Osteiti ...
.
Type strain
*Strain D16 = CCUG 50187 = CIP 108544
References
*Adékambi,T., et al. 2006. Description of Mycobacterium conceptionense sp. nov., a Mycobacterium fortuitum group organism isolated from a posttraumatic osteitis inflammation. J. Clin. Microbiol., 44, 1268–1273.
External links
Type strain of ''Mycobacterium conceptionense'' at Bac''Dive'' - the Bacterial Diversity Metadatabase
Acid-fast bacilli
conceptionense
Bacteria described in 2006
{{Mycobacterium-stub