A proposal for minimal standards for descriptions of new species of the order is submitted for considration by the Judicial Commission. The classification of an organism as a member of the order should be based primarily on the following criteria: Lack of a cell wall, typical colonial appearance, filterability through a 450-nm membrane filter, and absence of reversion to a bacterium under appropriate conditions. Classification of the family depends on determination of sterol requirements. The properties to be determined to establish differences from existing species include cultural and biochemical characteristics as well as antigenicity. Reference is made to a number of biochemical and serological tests that are considered particularly important. In addition, a series of optional tests, that may provide further useful information, are mentioned.


Article metrics loading...

Loading full text...

Full text loading...


Most cited this month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error