''Mycobacterium madagascariense''
Etymology: madagascariense, relating to

Madagascar Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa ...

where it was first isolated.

Description

Polymorphic,

gram-positive In bacteriology, gram-positive bacteria are bacteria that give a positive result in the Gram stain test, which is traditionally used to quickly classify bacteria into two broad categories according to their type of cell wall. Gram-positive bacte ...

, nonmotile and

acid-fast Acid-fastness is a physical property of certain bacterial and eukaryotic cells, as well as some sub-cellular structures, specifically their resistance to decolorization by acids during laboratory staining procedures. Once stained as part of a sam ...

rods. Colony characteristics *Smooth and glistening colonies with yellow or orange pigmentation (1-2mm in diameter). Physiology *Rapid growth on Löwenstein-Jensen medium and Middlebrook 7H10 agar at 31 °C. No growth at 37 °C or above. Differential characteristics *Differentiated from ''

Mycobacterium aurum ''Mycolicibacterium aurum'' is a species of the phylum Actinomycetota (Gram-positive bacteria with high guanine and cytosine content, one of the dominant phyla of all bacteria), belonging to the genus ''Mycolicibacterium''. The species is an ...

'' and ''

Mycobacterium obuense ''Mycobacterium obuense'' is a species of soil-dwelling scotochromogenic ''Mycobacterium''. The cell wall of ''M. obuense'' contains 1-tetradecanol, 2-octadecanol, and 2-eicosanol, and triacylated lipoproteins. Use in immunomodulatory therapy ...

'' by its failure to grow at 37 °C

Pathogenesis

*Not known to be pathogenic. * Biosafety level 1

Type strain

*First isolated from three different

sphagnum ''Sphagnum'' is a genus of approximately 380 accepted species of mosses, commonly known as sphagnum moss, peat moss, also bog moss and quacker moss (although that term is also sometimes used for peat). Accumulations of ''Sphagnum'' can store wa ...

biotopes in

. Strain P2 = ATCC 49865 = CIP 104538 = JCM 13574.

References

*Kazda et al. 1992. Mycobacterium madagascariense sp. nov. Int. J. Syst. Bacteriol., 42, 524–528.

External links

Type strain of ''Mycobacterium madagascariense'' at Bac''Dive'' - the Bacterial Diversity Metadatabase
Acid-fast bacilli madagascariense Bacteria described in 1992 {{Mycobacterium-stub