Mycobacterium botniense
Scientific classification
Domain:	Bacteria
Kingdom:	Bacillati
Phylum:	Actinomycetota
Class:	Actinomycetia
Order:	Mycobacteriales
Family:	Mycobacteriaceae
Genus:	Mycobacterium
Species:	M. botniense
Binomial name
Mycobacterium botniense Torkko et al. 2000, ATCC 700701

Mycobacterium botniense is a slowly growingMycobacterium, which produces a yellow pigment. It was first isolated from a stream of water.M. botniense is most closely related toMycobacterium xenopi.Etymology: botniense; of Botnia, referring to the Latin name of the province of Finland from which the isolation was made.

Microscopy

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

Colony characteristics

• Colonies onLöwenstein-Jensen media and onMiddlebrook 7H11 agar are small, dysgonic and scotochromogenic, and produce yellow pigment.

Physiology

• Visible growth from diluted inocula requires 5 to 8 weeks. Growth occurs at 37 to 50 °C.
• The type strain is positive for 10-d arylsulfatase and pyrazinamidase.
• Negative for 3-d arylsulfatase, urease, nitrate reductase, semi-quantitative catalase, heat-stable catalase, acid phosphatase, b-galactosidase and 5% NaCl tolerance.
• Tween 80 is not hydrolysed in 10 d.

Differential characteristics

• A phylogenetic tree based on the evaluation of 16S rDNA sequences placesM. botniense among the slow-growing mycobacteria, closest toM. xenopi.

• Not known, but first isolated from an environmental source.

• First isolated in Finland from stream waters. Strain E347 = ATCC 700701 = CCUG 47976 = CIP 106753 = DSM 44537.

• Torkko P. 2000., Mycobacterium xenopi and related organisms isolated from stream waters in Finland and description of Mycobacterium botniense sp. nov. Int. J. Syst. Evol. Microbiol., 50, 283–289.

• Type strain ofMycobacterium botniense at BacDive - the Bacterial Diversity Metadatabase

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