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.

Spirosoma linguale Migula (ATCC® 23276)

Strain Designations: Mc1 [CCM 2041]  /  Type Strain: no  /  Biosafety Level: 1

Permits and Restrictions

View Permits

Deposited As Microcyclus flavus Raj
Strain Designations Mc1 [CCM 2041]
Long Beach California,
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
Preceptrol® no
Type Strain no
Referred to as the type strain of Microcyclus flavus
Name of Depositor HD Raj
Long Beach California,

Leathen WW, Braley SA. A new iron-oxidizing bacterium: Ferrobacillus ferrooxidans. Bacteriol. Proc. 1954: 44, 1954.

Raj HD. A new species - Microcyclus flavus. Int. J. Syst. Bacteriol. 20: 61-81, 1970.

Claus D, et al. DNA base composition of Microcyclus species and organisms of similar morphology. Arch. Mikrobiol. 63: 26-28, 1968. PubMed: 5709639

Larkin JM, et al. Taxonomy of the genus Microcyclus (Orskov 1928: Reintroduction and emendation of the genus Spirosoma Migula 1894 and proposal of a new genus, Flectobacillus. Int. J. Syst. Bacteriol. 27: 147-156, 1977.

fresh water from deep wells, Long Beach

Cross References

Nucleotide (GenBank) : M62789 S.linguale 16S ribosomal RNA.

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