Mycobacterium lacus

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Mycobacterium lacus
Scientific classification
Kingdom: Bacteria Phylum: Actinobacteria Order: Actinomycetales Suborder: Corynebacterineae Family: Mycobacteriaceae Genus: Mycobacterium Species: M. lacus
Binomial name
Mycobacterium lacus Turenne et al. 2002, ATCC BAA-323

Mycobacterium lacus

Contents 1 Description 2 Pathogenesis 3 Type Strain 4 References

[edit] Description

Large, dispersed acid-fast bacilli with prominent beading

Colony characteristics

• Colonies on Löwenstein-Jensen medium were nonchromogenic, small, with a dry appearance.
• On Middlebrook 7H10 agar, colonies are small, nonpigmented and smooth to rough, with a slightly irregular edge. Younger colonies appeared slightly transparent.

Physiology

• Growth was observed on Löwenstein-Jensen medium at 2 weeks at both 37 and 42 °C and at 3 weeks at 30 °C. At 4 weeks, very little growth was observed at 25 °C, and no growth was observed at 52 °C.

[edit] Pathogenesis

• Causitive agent of bursitis in an immunocompetant individual.

[edit] Type Strain

• Isolated from synovial tissue from a 68-year-old female with bursitis of her right elbow. Likely exposure was in a lake.

Strain NRCM 00-255 = ATCC BAA-323 = DSM 44577

[edit] References

• Turenne et al. 2002. Mycobacterium lacus sp. nov., a novel slowly growing, non-chromogenic clinical isolate. Int. J. Syst. Evol. Microbiol., 52, 2135-2140.