To ATCC Valued Customers,

ATCC stands ready to support our customers’ needs during the coronavirus pandemic. If you experience any issues with your products or services, please contact ATCC Customer Service at For Technical questions please contact Thank you.

Privacy Policy Update

We remain dedicated to protecting your data and experience throughout our platforms. We have updated our Privacy Policy and your continued use of the Site means you have accepted the revised Privacy Policy. View now >

Actinomyces viscosus (Howell et al.) Georg et al. (ATCC® 15987)

Strain Designations: T-6  /  Type Strain: yes  /  Biosafety Level: 2

Permits and Restrictions

View Permits

Deposited As Odontomyces viscosus Howell et al.
Strain Designations T-6
Quality control strain
Naturally occurring periodontal disease in hamsters.
Biosafety Level 2

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 Frozen: -80°C or colder
Freeze-Dried: 2°C to 8°C
Live Culture: See Propagation Section
Preceptrol® no
Type Strain yes
Medium ATCC® Medium 44: Brain Heart Infusion Agar/Broth
Growth Conditions
Temperature: 37°C
Atmosphere: 5% CO2
Name of Depositor A Howell
Chain of Custody
ATCC <-- A Howell <-- H.V. Jordan
Naturally occurring periodontal disease in hamsters.

Howell A Jr., et al. Odontomyces viscosus gen. nov., spec. nov., a filamentous microorganism isolated from periodontal plaque in hamsters. Sabouraudia 4: 65-67, 1965. PubMed: 5896131

Jordan HV, Keyes PH. Aerobic, gram-positive filamentous bacteria as etiologic agents of experimental periodontal disease in hamsters. Arch. Oral Biol. 9: 401-414, 1964.

Gerencser MA, Slack JM. Identification of human strains of Actinomyces viscosus. Appl. Microbiol. 18: 80-87, 1969. PubMed: 4896106

. . J. Gen. Microbiol. 38: 125-130, 1965.

Georg LK, et al. Actinomyces viscosus comb. nov. A catalase positive, facultative member of the genus Actinomyces. Int. J. Syst. Bacteriol. 19: 291-293, 1969.

Howell A Jr.. A filamentous microorganism isolated from periodontal plaque in hamsters. 1. Isolation, morphology and general cultural characteristics. Sabouraudia 3: 81-92, 1963. PubMed: 5875373

Howell A Jr., Jordan HV. A filamentous microorganism isolated from periodontal plaque in hamsters. II. Physiological and biochemical characteristics. Sabouraudia 3: 93-105, 1963. PubMed: 5181582

Skerman VB, et al. Approved lists of bacterial names. Int J Syst Bacteriol 30: 225-420, 1980.

API Rapid ID 32 A. bioMerieux.

Cross References

Nucleotide (GenBank) : X81381 A.viscosus partial SOD gene.

Nucleotide (GenBank) : AF058051 Actinomyces viscosus 16S ribosomal RNA gene, partial sequence.

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