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. 1983 Mar 1;24(1):14–33. doi: 10.1186/BF03546754

Electrophoretic Analysis of Isoenzymes of Mycoplasma Species

Elektroforetisk analyse af isoenzymer hos mykoplasmer

M M Salih 1, H Ernø 1,✉, V Simonsen 1
PMCID: PMC8291283  PMID: 6869144

Abstract

The purpose of this paper is to further characterize and determine relatedness among some Mycoplasma species or serogroups of significant practical veterinary interest. Twenty-four strains were examined for the presence of 35 enzymes by horizontal starch gel electrophoresis, revealing a total of 127 different electromorphs of 30 enzymes. Inter- as well as intraspecific differences were found demonstrating the application of isoenzyme studies in classification as well as epidemiology. It is concluded that the F38 group of MacOwan and group 7 of Leach constitute 2 new species, The elevation of the 2 subspecies of M. mycoides (mycoides and capri) to species level is favoured, but it is suggested that a decision be taken internationally, considering the practical consequences of a given nomenclature. Three alternative possibilities for classification are presented.

Regarding identification the results suggest that the presence or absence of maltase and ornithine transcarbamylase indicate whether an isolate is related to the agent of contagious bovine pleuropneumonia or merely a representative of either the caprine LG type of M. mycoides subsp. mycoides or the classical caprine subspecies, M. mycoides subsp. capri.

Key words: mycoplasmas, classification, isoenzymes, M. mycoide s-r elated groups

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