Phylum Actinobacteria, Class Actinobacteria, Order Actinomycetales, Suborder Corynebacterineae, Family Mycobacteriaceae, Genus
Mycobacterium, Mycobacterium mageritense Domenech et al. 1997.
Strongly acid-alcohol-fast rods, 4-9 μm. No production of spores, capsules, and true
Colonies are smooth, mucoid, nonchromogenic and appear in 2-4 days on
Lowenstein-Jensen medium. Growth occurs at 22, 30, 37, and 45 ºC; optimum
growth occurs at 30 and 37 ºC. Grows on MacConkey agar (without crystal violet) and
in the presence of potassium tellurite. Most strains grow in 5% (w/v) NaCl media.
Undetermined. The pulmonary isolates seems to be pathogenic.
Isolated from human sputum, pulmonary samples, blood, surgical wounds and respiratory samples. Not isolated from the
environment. Resistant to isoniazid, cycloserine, capreomycin, pyrazinamide, thiosemicarbazone, and thiophen-2-carboxylic acid
hydrazide (TCH). Variably susceptible to ethambutol.
- Domenech P, Jimenez MS, Menendez MC, Bull TJ, Samper S, Manrique A, Garcia MJ. Mycobacterium mageritense sp. nov. Int J
Syst Bacteriol 1997; 47:535-540.
- John G. Magee and Alan C. Ward 2012. Family III. Mycobacteriaceae Chester 1897, 63AL in Bergey’s Manual of Systematic
Bacteriology, Volume Five The Actinobacteria, Part A, Michael Goodfellow & al. (editors), 312-375.
- Stephen Berger 2019. Gideon Guide to Medically Important Bacteria. De Gideon Informatics, Inc.
- Enrico Tortoli. Impact of Genotypic Studies on Mycobacterial Taxonomy: the New Mycobacteria of the 1990s. Clinical Microbiology
Reviews, Apr. 2003, p. 319-354.
- Nouioui I, Carro L, Sangal V, Jando M, Igual JM, Goodfellow M, Klenk HP. Formal description of Mycobacterium neglectum sp. nov.
and Mycobacterium palauense sp. nov., rapidly growing actinobacteria. Antonie Van Leeuwenhoek 2018; 111:1209-1223.
Positive results for arylsulfatase activity at 3 and 7 days, catalase, nicotinamidase and pyrazinamidase.
Can utilize as sole carbon source acetamide, D- and L-malate, D-mannitol and trehalose.
Negative results for thermostable catalase (68 ºC), niacin accumulation, Tween hydrolysis, and urease.
Variable results for nitrate reductase, iron uptake, allantoinase, benzamidase, iso-nicotinamidase, succinidamidase, utilization of
citrate and inositol as sole carbon sources.
(c) Costin Stoica