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[Biochemical tests for identifying Pasteurella multocida].

L Karaivanov

    Veterinarno-Meditsinski Nauki
    |January 1, 1984
    PubMed
    Summary

    Biochemical tests differentiate Pasteurella strains from birds and mammals. Phosphatase activity and fermentation of arabinose/xylose distinguish Pasteurella multocida, aiding fowl cholera diagnosis.

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    Area of Science:

    • Microbiology
    • Bacteriology

    Context:

    • Pasteurella species are significant pathogens in both avian and mammalian hosts.
    • Differentiating between avian and mammalian strains of Pasteurella is crucial for disease control and treatment.

    Purpose:

    • To biochemically characterize 168 strains of Pasteurella isolated from birds and mammals.
    • To identify reliable biochemical tests for differentiating Pasteurella multocida strains based on their host origin.

    Summary:

    • A comprehensive biochemical analysis was performed on 168 Pasteurella strains (73 avian, 95 mammalian).
    • Phosphatase activity and fermentation patterns of arabinose and xylose were identified as key discriminators.
    • Mammalian strains exhibited positive phosphatase activity, while avian strains were negative.
    • Avian strains from acute fowl cholera fermented arabinose (positive) and xylose (negative), with mammalian strains showing the reverse.

    Impact:

    • Establishes phosphatase activity as a reliable marker for distinguishing mammalian from avian Pasteurella.
    • Provides a simple biochemical method using arabinose and xylose fermentation for differentiating strains, aiding in diagnostics.
    • Supports accurate identification of Pasteurella multocida, crucial for managing fowl cholera and other Pasteurella-related diseases.

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