Rapid identification of mycoplasmas by indirect immunoperoxidase test using small square filter paper

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Abstract
The indirect immunoperoxidase test using small, square filter paper was used for rapid identification of mycoplasmas. Colonies of type strains of 22 mycoplasma species, 3 acholeplasma species, and three Ureaplasma diversum serogroups were stained by this test with high sensitivity and specificity. All of 49 isolates from bovine materials and cell cultures were easily identified by this test, and the results agreed with those obtained by growth inhibition test. Use of filter paper made it possible to add different kinds of antisera or conjugates to the same agar plate simultaneously and also to save antiserum and conjugate. This test proved to be a simple and useful technique for rapid identification of many mycoplasma species grown on agar medium.