Mycobacterium interjectum

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Mycobacterium interjectum
Scientific classification
Kingdom: Bacteria Phylum: Actinobacteria Order: Actinomycetales Suborder: Corynebacterineae Family: Mycobacteriaceae Genus: Mycobacterium Species: M. interjectum
Binomial name
Mycobacterium interjectum Springer et al. 1995, ATCC 51457

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

Contents 1 Description 2 Pathogenesis 3 Type Strain 4 References

[edit] Description

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.

[edit] Pathogenesis

• Chronic lymphadenitis
• Biosafety level 2

[edit] Type Strain

• First isolated from a lymph node of a child with chronic lymphadenitis in Germany.

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

[edit] References

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