| Mycobacterium sherrisii |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium, Mycobacterium sherrisii van Ingen et al. 2011.
Member of the Mycobacterium simiae complex.
Mycobacterium, Mycobacterium sherrisii van Ingen et al. 2011.
Member of the Mycobacterium simiae complex.
Acid-alcohol-fast rods, occasionally coccid forms.
Visible growth from a small inoculum requires more than 7 days; on Middlebrook
7H10 medium colonies are small, smooth, white and non-chromogenic (rarely, rough
colonies may occur). Photochromogenic and scotochromogenic strains may occur.
Grow at 25-37 ºC. Variable growth at 42 ºC. No growth on MacConkey agar without
crystal violet.
7H10 medium colonies are small, smooth, white and non-chromogenic (rarely, rough
colonies may occur). Photochromogenic and scotochromogenic strains may occur.
Grow at 25-37 ºC. Variable growth at 42 ºC. No growth on MacConkey agar without
crystal violet.
Undetermined.
Isolated from human clinical specimens.
Resistant to thiophene-2-carboxylic hydrazide (5μg/ml), thiacetazone (10 μg/ml), hydroxylamine (500 μg/ml), isoniazid (1 μg/ml),
ciprofloxacin, gatifloxacin, moxifloxacin, linezolid, rifampicin, sulfamethoxazole, minocycline, ethambutol, and streptomycin. Variable
tolerance to oleate (250 μg/ml) and amikacin. Susceptible to clarithromycin and rifabutin.
Resistant to thiophene-2-carboxylic hydrazide (5μg/ml), thiacetazone (10 μg/ml), hydroxylamine (500 μg/ml), isoniazid (1 μg/ml),
ciprofloxacin, gatifloxacin, moxifloxacin, linezolid, rifampicin, sulfamethoxazole, minocycline, ethambutol, and streptomycin. Variable
tolerance to oleate (250 μg/ml) and amikacin. Susceptible to clarithromycin and rifabutin.
- van Ingen J, Tortoli E, Selvarangan R, Coyle MB, Crump JA, Morrissey AB, Dekhuijzen PN, Boeree MJ, van Soolingen D.
Mycobacterium sherrisii sp. nov., a slow-growing non-chromogenic species. Int J Syst Evol Microbiol 2011; 61:1293-1298. - Selvarangan, R., Wu, W. K., Nguyen, T. T., Carlson, L. D., Wallis, C. K., Stiglich, S. K., Chen, Y. C., Jost, K. C., Jr, Prentice, J. L. &
other authors (2004). Characterization of a novel group of mycobacteria and proposal of Mycobacterium sherrisii sp. nov. J Clin
Microbiol 42, 52–59. - Tortoli E, Bottger EC, Fabio A, Falsen E, Gitti Z, Grottola A, Klenk HP, Mannino R, Mariottini A, Messino M, et al. Mycobacterium
europaeum sp. nov., a scotochromogenic species related to the Mycobacterium simiae complex. Int J Syst Evol Microbiol 2011; 61:
1606-1611.
Positive results for semi-quantitative catalase, thermostable catalase (68 ºC), and urease (most strains).
Negative results for arylsulfatase (3 days) (most strains), beta-glucosidase, nitrate reduction, and Tween 80 hydrolysis.
Variable results for arylsulfatase (14 days), niacin accumulation, pyrazinamidase, and tellurite reduction.
Negative results for arylsulfatase (3 days) (most strains), beta-glucosidase, nitrate reduction, and Tween 80 hydrolysis.
Variable results for arylsulfatase (14 days), niacin accumulation, pyrazinamidase, and tellurite reduction.
(c) Costin Stoica
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