- 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 44428Mycobacterium heckeshornense
Contents
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.
- 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.
Pathogenesis
- Seems to be pathogenic in immunocompetent humans.
- Biosafety level unknown
Type strain
- The type strain was isolated from human lung by bronchoscopy.
Strain S369 = CCUG 51897 = DSM 44428
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.
Slowly growing
(R1P=photochromogenic;
R2S=scotochromogenic;
R3N=nonchromogenic)Rapidly growing/
Runyon IVM. neoaurum groupF/T groupsM. fortuitum groupM. vaccae groupM. smegmatis groupM. chelonae groupM. elephantis group
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