Mycobacterium moriokaense
Encyclopedia
Mycobacterium moriokaense

Etymology
Etymology
Etymology is the study of the history of words, their origins, and how their form and meaning have changed over time.For languages with a long written history, etymologists make use of texts in these languages and texts about the languages to gather knowledge about how words were used during...

: moriokaense, from Morioka, Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

 where the organism was first isolated.

Description

Gram-positive
Gram-positive
Gram-positive bacteria are those that are stained dark blue or violet by Gram staining. This is in contrast to Gram-negative bacteria, which cannot retain the crystal violet stain, instead taking up the counterstain and appearing red or pink...

, nonmotile and acid-fast
Acid-fast
Acid-fastness is a physical property of certain bacteria, specifically their resistance to decolorization by acids during staining procedures.Acid-fast organisms are difficult to characterize using standard microbiological techniques Acid-fastness is a physical property of certain bacteria,...

 rods (2-6 µm x 0.5 µm).

Colony characteristics
  • Dry, rough and nonpigmented (nonphotochromogenic) colonies.


Physiology
  • Rapid growth on Löwenstein-Jensen media at 28°C, 37°C and 42°C, but not at 45°C within 3 days.

Type strain

  • First isolated from sputum of a patient with tuberculosis and from soil in Morioka, Japan.

Strain NCH E11715 = ATCC 43059 = CCUG 37671 = CIP 105393 = DSM 44221 = JCM 6375 = VKM Ac-1183.
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