Culture Repository

The Mollicutes Collection of Cultures and Antisera

The Mollicutes Collection of Cultures and Antisera (World Federation of Culture Collections [WFCC] acronym TMC; World Data Centre for Microorganisms [WDCM] Collection Number 858) is controlled by the International Organization for Mycoplasmology (IOM), a non-profit scientific organization dedicated to the study of bacteria in the Class Mollicutes. The Collection contains about 12,000 lyophilized cultures representing more than 200 species and 1500 strains of mollicutes, and 18,000 specimens of lyophilized antiserum, assembled between 1970 and 2000 through joint efforts of the FAO/WHO, the U.S. National Institutes of Health, and the U.S. Department of Agriculture.

Specific polyclonal antisera against many strains of the bacteria were produced in rabbit (and a few in horse). These were prepared by multiple university or government research laboratories, or through contracts with commercial sources, again dating back to the 1970’s. Both unconjugated and FITC-conjugated antisera are available for some of the strains.

It will be inconvenient, and seems unnecessary, to preserve the very large quantities of antiserum included for certain species of Acholeplasma, Entomoplasma, Mesoplasma, Mycoplasma and Spiroplasma. The IOM Board of Directors has therefore approved an inventory reduction of the 2-ml and 5-ml vials, and disposal of all irregular-size (10 ml, 25 ml, 30 ml) vials for each strain. A spreadsheet of the available antisera can be downloaded here.

The 2-ml vials are normally sold on a cost-recovery basis of $50 USD each to IOM members or $100 USD to non-IOM members, but for inventory reduction purposes an unlimited quantity will be available for only the cost of shipping. Requests will be honored in the order that they are received.
No documentation exists regarding the health status of the animals used for antiserum production. The Collection cannot guarantee the current potency of the antisera.
The deadline to request antisera is October 1, 2014. Please email requests to Dan Brown at


Last updated July 24, 2014