| Mycobacterium alsense |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium, Mycobacterium alsense Tortoli et al. 2016.
Not valid name: "Mycobacterium alsiense".
Mycobacterium, Mycobacterium alsense Tortoli et al. 2016.
Not valid name: "Mycobacterium alsiense".
Acid-fast rods. Non-motile. Non-spore-forming.
Colonies are small, smooth and pale-yellow-pigmented both in the light and in the
dark. Visible growth appears after 2 weeks of incubation at 25-37 ºC. No growth at 45
ºC. No growth on MacConkey agar without crystal violet or on Lowenstein-Jensen
medium supplemented with 5% NaCl.
dark. Visible growth appears after 2 weeks of incubation at 25-37 ºC. No growth at 45
ºC. No growth on MacConkey agar without crystal violet or on Lowenstein-Jensen
medium supplemented with 5% NaCl.
Undetermined.
Isolated from sputum of patients with pulmonary disorders.
Susceptible to amikacin, ciprofloxacin, clarithromycin, linezolid, moxifloxacin and rifabutin. Variable results for doxycycline, ethambutol,
rifampicin, streptomycin and sulfamethoxazole. Resistant to thiophene-2-carboxylic acid hydrazide (1 μg / ml), p-nitrobenzoic acid (500
μg/ml), thiacetazone (10 μg/ml), isoniazid (1 μg/ml) and oleate (250 μg/ml).
Susceptible to amikacin, ciprofloxacin, clarithromycin, linezolid, moxifloxacin and rifabutin. Variable results for doxycycline, ethambutol,
rifampicin, streptomycin and sulfamethoxazole. Resistant to thiophene-2-carboxylic acid hydrazide (1 μg / ml), p-nitrobenzoic acid (500
μg/ml), thiacetazone (10 μg/ml), isoniazid (1 μg/ml) and oleate (250 μg/ml).
- Tortoli E, Richter E, Borroni E, Cabibbe AM, Capitolo E, Cittaro D, Engel R, Hendricks O, Hillemann D, Kristiansen JE, et al.
Mycobacterium alsense sp. nov., a scotochromogenic slow grower isolated from clinical respiratory specimens. Int J Syst Evol
Microbiol 2016; 66:450-456. - Richter E, Tortoli E, Fischer A, et al. Mycobacterium alsiense, a novel, slowly growing species isolated from two patients with
pulmonary disease. Journal of Clinical Microbiology. 2007 Nov;45(11):3837-3839. DOI: 10.1128/jcm.01097-07.
Positive results for heat-stable catalase.
Negative results for arylsulfatase (3 days), semi-quantitative catalase, beta-glucosidase, niacin accumulation, nitrate reduction,
tellurite reduction, Tween 80 hydrolysis, and urease.
Negative results for arylsulfatase (3 days), semi-quantitative catalase, beta-glucosidase, niacin accumulation, nitrate reduction,
tellurite reduction, Tween 80 hydrolysis, and urease.
(c) Costin Stoica
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