Mycolicibacter hiberniae

Mycolicibacter hiberniae
Scientific classification
Domain:	Bacteria
Kingdom:	Bacillati
Phylum:	Actinomycetota
Class:	Actinomycetes
Order:	Mycobacteriales
Family:	Mycobacteriaceae
Genus:	Mycolicibacter
Species:	M. hiberniae
Binomial name
Mycolicibacter hiberniae (Kazda et al. 1993) Gupta et al. 2018[1][2]
Type strain[3]
ATCC 49874 ATCC 9874 CIP 104537 DSM 44241 Hi 11 JCM 13571
Synonyms[2]
Mycobacterium hiberniae Kazda et al. 1993

Mycolicibacter hiberniae (formerly Mycobacterium hiberniae) is a species of bacteria in the phylum Actinomycetota.^[1]

Etymology Hibernia, Latin for Ireland where it was first isolated.

Polymorphic, beaded, gram-positive, nonmotile and acid-fast rods (0.9 μm × 1.2–1.5 μm).

Colony characteristics

• Smooth and glistening colonies with rose-pink pigmentation but become rough and dry later. Colonies with unique pigment production are 1-1.5 mm in diameter.

Physiology

• Slow growth on Löwenstein-Jensen medium and Middlebrook 7H10 agar at 37 °C (range: 22-37 °C). No growth at 42 °C.
• Resistant to isoniazid, rifampin, and streptomycin
• Sensitive to ethambutol.

Differential characteristics

• M. hiberniae has unusual rose-pink pigmentation, which is unique in the genus Mycobacterium.

• Not pathogenic
• Provokes a nonspecific skin hypersensitivity reaction to bovine tuberculin.
• Biosafety level 1

• First isolated from true moss, sphagnum, and soil in Ireland

• Type strain of M. hiberniae at BacDive - the Bacterial Diversity Metadatabase

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