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Related Experiment Videos

[The mixotrophy of pathogenic bacteria]

G P Somov, L S Buzoleva, S A Cherkasova

    Zhurnal Mikrobiologii, Epidemiologii I Immunobiologii
    |September 1, 1994
    PubMed
    Summary

    Yersinia pseudotuberculosis and Listeria monocytogenes can use carbon dioxide and hydrogen for growth. These bacteria exhibit metabolic flexibility, functioning as heterotrophs in hosts and chemolithoautotrophs in the environment.

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    Mikrobiologiia·2012

    Area of Science:

    • Microbiology
    • Environmental Science
    • Biochemistry

    Context:

    • Investigating microbial metabolism in diverse environments.
    • Understanding the nutritional requirements of pathogenic bacteria.
    • Exploring the role of gas utilization in bacterial survival.

    Purpose:

    • To determine the metabolic capabilities of Yersinia pseudotuberculosis and Listeria monocytogenes.
    • To elucidate the utilization of carbon dioxide and hydrogen by these bacteria.
    • To characterize the metabolic plasticity of Yersinia pseudotuberculosis and Listeria monocytogenes.

    Summary:

    • Yersinia pseudotuberculosis and Listeria monocytogenes were cultivated in a mineral medium utilizing carbon dioxide and hydrogen from a gas-air mixture.
    • These bacterial species demonstrated chemolithoautotrophic metabolism when in environmental conditions.
    • In contrast, they exhibited heterotrophic metabolism during infection in warm-blooded animals.

    Impact:

    • Highlights the metabolic adaptability of Yersinia pseudotuberculosis and Listeria monocytogenes.
    • Explains the dual saprophytic and parasitic nature of these bacteria.
    • Provides insights into bacterial survival strategies in different ecological niches.

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