Mycobacterium interjectum

Updated on Dec 09, 2024

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Kingdom Bacteria Order Actinomycetales Family Mycobacteriaceae Scientific name Mycobacterium interjectum		Phylum Actinobacteria Suborder Corynebacterineae Genus Mycobacterium Rank Species
Similar Mycobacterium lentiflavum, Mycobacterium celatum, Mycobacterium malmoense

Mycobacterium interjectum is a species of the phylum actinobacteria (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

Chronic lymphadenitis

Biosafety level 2

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

References

Mycobacterium interjectum Wikipedia

(Text) CC BY-SA

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