Mycobacterium mageritense

Updated on Jan 14, 2024

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Kingdom Bacteria Order Actinomycetales Family Mycobacteriaceae Scientific name Mycobacterium mageritense		Phylum Actinobacteria Suborder Corynebacterineae Genus Mycobacterium Rank Species

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Mycobacterium mageritense
Etymology: Magerit, is Arabic for Madrid, where the it was first isolated from human sputum.

Description

Gram-positive, nonmotile and strongly acid-fast rods.

Colony characteristics

Smooth, mucoid and nonphotochromogenic colonies.

Physiology

Rapid growth on Löwenstein-Jensen medium at 22°C, 30°C, 37°C and 45°C within 2–4 days.

Optimum growth at 30°C and 37°C.

Resistant to isoniazid, cycloserine, capreomycin, pyrazinamide, and thiosemicarbazone

Most strains are also resistant to ethambutol.

Differential characteristics

Characterised by unique hsp65 gene, 16S rDNA and sodA sequences. *Closely related to M. fortuitum and M. peregrinum at the DNA homology level.

Differentiation from M. fortuitum by its growth at 45°C and by its use of mannitol as a sole carbon source.

Biosafety level 1

First isolated from human sputum in Madrid

Strain 938 = ATCC 700351 = CCUG 37984 = CIP 104973 = DSM 44476 = JCM 12375.

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