Lipases from psychrotropic antarctic bacteria

Georges Feller, Michel Thiry, Jean Louis Arpigny, Max Mergeay, Charles Gerday

    Research outputpeer-review

    Abstract

    Properties of lipases excreted by 4 psychrotropic Moraxella strains from antarctic sea water have investigated. Despite an optimal cell generation time at 25°C, maximal lipase excretion essentially occurs at low temperatures. These enzymes are characterized by a shift of the apparent optimal activity towards low temperatures, by a reduction of the activation energy value and by a decrease in heat stability. These lipases are associated with lipopolysaccharides, forming high molecular weight complexes. One of the selected strain is able to express the antibiotic resistances carried by RP4, at both 4 and 25°C.

    Original languageEnglish
    Pages (from-to)239-243
    Number of pages5
    JournalFEMS Microbiology Letters
    Volume66
    Issue number1-3
    DOIs
    StatePublished - 1 Jan 1990

    ASJC Scopus subject areas

    • General Medicine

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