STUDIES ON THE MYXOBACTERIUM CHONDROCOCCUS COLUMNARIS

Abstract
A serological typing procedure has been devised which separates 325 strains of C. columnaris, isolated since 1953 from fish of the Pacific Northwest and 1 strain from Texas, into 4 serological groups and 1 miscellaneous group. All of the strains possess a common antigen which may be characteristic of the species, but the strains vary in their composition of other antigens which are called the type antigens. All of the strains of C. columnaris isolated from lakes and hatcheries of western Washington and the Rogue River of western Oregon were placed in 1 serological group. However, representatives of all 4 serological groups were found in the Columbia River and its tributaries, most of which are located in eastern Washington.

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