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Related Experiment Videos

Alkane oxidation by a particulate preparation from Candida.

C M Liu, M J Johnson

    Journal of Bacteriology
    |June 1, 1971
    PubMed
    Summary

    Candida intermedia oxidizes decane to decanoate through alcohol and aldehyde intermediates. Specific enzymes, induced by decane, facilitate this metabolic pathway, primarily in the cell membrane.

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    Area of Science:

    • Microbiology
    • Biochemistry
    • Enzymology

    Background:

    • Candida intermedia utilizes hydrocarbons as a carbon source.
    • Understanding microbial alkane oxidation pathways is crucial for biotechnology and environmental applications.

    Purpose of the Study:

    • To elucidate the enzymatic steps and regulation involved in decane oxidation by Candida intermedia.
    • To characterize the enzymes responsible for converting decane to decanoate.

    Main Methods:

    • Utilized a cell-free particulate preparation from Candida intermedia.
    • Investigated the oxidation intermediates: decane, decanol, decanaldehyde, and decanoate.
    • Assessed enzyme induction in the presence of decane.
    • Determined the subcellular localization of the enzymes.

    Main Results:

    • Decane is sequentially oxidized to decanol, decanaldehyde, and finally decanoate.
    • Decane to decanol oxidation requires molecular oxygen.
    • Two distinct nicotinamide adenine dinucleotide-linked dehydrogenases are involved: one for decanol and another for decanaldehyde.
    • The enzymes responsible for decane, decanol, and decanaldehyde oxidation are induced by decane presence.
    • These enzymes appear to be localized within the cell membrane.

    Conclusions:

    • Candida intermedia possesses a specific enzymatic system for decane catabolism.
    • The pathway involves sequential oxidation steps mediated by distinct, inducible enzymes.
    • The cell membrane harbors the key enzymes for this metabolic process.

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