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Citrobacter braakii Brenner et al. (ATCC® 6750)

Strain Designations: M8BK [NCIB 8173 (Escherichia intermedia)]  /  Type Strain: no  /  Biosafety Level: 1

Permits and Restrictions

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Deposited As Citrobacter intermedium Werkman and Gillen
Strain Designations M8BK [NCIB 8173 (Escherichia intermedia)]
Biosafety Level 1

Biosafety classification is based on U.S. Public Health Service Guidelines, it is the responsibility of the customer to ensure that their facilities comply with biosafety regulations for their own country.

Product Format freeze-dried
Storage Conditions Freeze-Dried: 2°C to 8°C
Preceptrol® no
Type Strain no
This strain is ornithine decarboxylase negative, which is atypical for Citrobacter braakii.
Original strain of Citrobacter intermedius
Medium ATCC® Medium 3: Nutrient agar or nutrient broth
Growth Conditions
Temperature: 37°C
Atmosphere: Aerobic
Name of Depositor CH Werkman
Chain of Custody
ATCC <-- CH Werkman <-- S. Koser M8B

Werkman CH, Gillen GF. Bacteria producing trimethylene glycol. J. Bacteriol. 23: 167-182, 1932.

J. Bacteriol. 29: 350, 1935.

ISO/CD 11133:2009, Annex E. Test microorganisms for commonly used culture media (giving information on the culture medium, culture conditions, test microorganisms, culture collection number of test organisms and the expected reactions)

Corry, JEL, Curtis, GDW and Baird, RM (Eds) Handbook of Culture Media for Food and Water Microbiology. Royal Society of Chemistry, In preparation. ICFMH-WPCM.

Notice: Necessary PermitsPermits

These permits may be required for shipping this product:

  • Customers located in the state of Hawaii will need to contact the Hawaii Department of Agriculture to determine if an Import Permit is required. A copy of the permit or documentation that a permit is not required must be sent to ATCC in advance of shipment.
Basic Documentation