Mycobacterium interjectum

Species of bacterium

Mycobacterium interjectum
Scientific classification Edit this 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

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.

Name

Etymology: Phylogenetic position between (Latin: interjectum) rapidly and slowly growing mycobacteria.

Description

Mycobacterium 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

Dysgonic, smooth and scotochromogenic colonies (1–2 mm in diameter).

Physiology

  • 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

Type strain

Strain 4185/92 = ATCC 51457 = CCUG 37514 = DSM 44064

References

  • Springer et al. 1993. Mycobacterium interjectum, a new species isolated from a patient with chronic lymphadenitis. J. Clin. Microbiol., 31, 3083–3089.

External links

  • Type strain of Mycobacterium interjectum at BacDive - the Bacterial Diversity Metadatabase
  • v
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Slowly growing
(R1P=photochromogenic;
R2S=scotochromogenic;
R3N=nonchromogenic)
Long helix 18
(TKHGC)
M. tuberculosis group
K/H groups
M. kansasii group
M. haemophilum group
M. gordonae group
M. conspicuum group
Long helix 18
(other)
M. xenopi group
M. celatum group
M. hiberniae group
Short helix 18
M. simiae clade
M. intermedium group
Ungrouped
Rapidly growing/
Runyon IV
M. neoaurum group
F/T groups
M. fortuitum group
M. vaccae group
M. smegmatis group
M. chelonae group
M. elephantis group
Taxon identifiers
Mycobacterium interjectum