Mycobacterium interjectum is a species of the phylum Actinomycetota (Gram-positive bacteria with high guanine and cytosine content, one of the dominant phyla of all bacteria), belonging to the genus Mycobacterium.
| Mycobacterium interjectum | |
|---|---|
Scientific classification 
| |
| Domain: | Bacteria |
| Phylum: | Actinomycetota |
| Class: | Actinomycetia |
| Order: | Mycobacteriales |
| Family: | Mycobacteriaceae |
| Genus: | Mycobacterium |
| Species: | M. interjectum
|
| Binomial name | |
| Mycobacterium interjectum Springer et al. 1995, ATCC 51457
| |
Name
editEtymology: Phylogenetic position between (Latin: interjectum) rapidly and slowly growing mycobacteria.
Description
editMycobacterium interjectum is Gram-positive, nonmotile and acid-fast rods (0.6-1.0 μm x 0.7-2.0 μm). Filaments (up to 6.0 μm) possible.
Colony characteristics
editDysgonic, smooth and scotochromogenic colonies (1–2 mm in diameter).
Physiology
edit- Slow growth on Löwenstein-Jensen medium at temperatures between 31°C and 37 °C within 3–4 weeks.
- Susceptible to rifampicin.
- Resistant to isoniazid and ethambutol.
Differential characteristics
- Most closely related to M. simiae.
- Phylogenetic position between rapidly and slowly growing mycobacteria.
Pathogenesis
edit- Chronic lymphadenitis
- Biosafety level 2
Type strain
edit- First isolated from a lymph node of a child with chronic lymphadenitis in Germany.
Strain 4185/92 = ATCC 51457 = CCUG 37514 = DSM 44064
References
edit- Springer et al. 1993. Mycobacterium interjectum, a new species isolated from a patient with chronic lymphadenitis. J. Clin. Microbiol., 31, 3083–3089.