Mycobacterium heckeshornense

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Mycobacterium heckeshornense
Scientific classification
Kingdom: Bacteria Phylum: Actinobacteria Order: Actinomycetales Suborder: Corynebacterineae Family: Mycobacteriaceae Genus: Mycobacterium Species: M. heckeshornense
Binomial name
Mycobacterium heckeshornense Roth et al. 2001, DSM 44428

Mycobacterium heckeshornense

Contents 1 Description 2 Pathogenesis 3 Type Strain 4 References

[edit] Description

Gram-positive, nonmotile and acid-fast rods. Cells are typically rod-shaped, with some coccoid forms.

Colony characteristics Smooth, yellow scotochromogenic colonies appear after 4 weeks of culture.

Physiology

• Slowly growing organism, colonies appear after 4 weeks of growth.
• Able to grow at 37 °C and 45 °C.

Differential characteristics

• The phylogenetic position of this species is within the cluster defined by M. xenopi and M. botniense.
• Key differentiating features are negative tests for arylsulfatase and pyrazinamidase and susceptibility to antimycobacterial drugs.

[edit] Pathogenesis

• Seems to be pathogenic in immunocompetent humans.
• Biosafety level unknown

[edit] Type Strain

• The type strain was isolated from human lung by bronchoscopy.

Strain S369 = CCUG 51897 = DSM 44428

[edit] References

• Roth et al. 2000. Mycobacterium heckeshornense sp. nov., a new pathogenic slowly growing Mycobacterium sp. causing cavitary lung disease in an immunocompetent patient. J. Clin. Microbiol.,38, 4102-4107.