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  • Title: Comparative electrophoretic profiles of esterases, and of glutamate, lactate and malate dehydrogenases, from Aeromonas hydrophila, A. caviae and A. sobria.
    Author: Picard B, Goullet P.
    Journal: J Gen Microbiol; 1985 Dec; 131(12):3385-91. PubMed ID: 3831235.
    Abstract:
    Esterases, and glutamate, lactate and malate dehydrogenases of 64 Aeromonas hydrophila, A. caviae and A. sobria strains, were analysed by polyacrylamide agarose gel electrophoresis and by thin layer isoelectrofocusing. On the basis of the isoelectric points of malate dehydrogenase from the three species and the mobility of lactate dehydrogenase from A. sobria, 8 species specific zymotypes were defined: three for A. hydrophila strains, three for A. caviae strains and two for A. sobria strains. These zymotypes correlated with previously established DNA hybridization groups. The other electrophoretic data were found to be less useful for distinction between A. hydrophila and A. sobria strains, but supported differentiation into zymotypes for A. caviae strains. The two-dimensional electrophoretic profile established by plotting isoelectric point against electrophoretic mobility of the major esterase illustrated the degree of enzyme polymorphism among the strains of the three species. Variation in electrophoretic patterns within A. hydrophila and A. caviae might provide useful epidemiological markers.
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