The Chloride Ion Is an Environmental Factor Affecting the Biosynthesis of Pyoluteorin and 2,4-Diacetylphloroglucinol in Pseudomonas sp. YGJ3

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  • MATANO Ikue
    Department of Biomolecular Science, Faculty of Engineering, Gifu University
  • TSUNEKAWA Masahiro
    Department of Biomolecular Science, Faculty of Engineering, Gifu University
  • SHIMIZU Syotarou
    Department of Biomolecular Science, Faculty of Engineering, Gifu University
  • TANAKA Ichiki
    Department of Biomolecular Science, Faculty of Engineering, Gifu University
  • MITSUKURA Kouichi
    Department of Biomolecular Science, Faculty of Engineering, Gifu University
  • MARUYAMA Kiyofumi
    Department of Biomolecular Science, Faculty of Engineering, Gifu University

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  • The Chloride Ion Is an Environmental Factor Affecting the Biosynthesis of Pyoluteorin and 2,4-Diacetylphloroglucinol in<i>Pseudomonas</i>sp. YGJ3

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The effects of Cl− on the antibiotics productivity of Pseudomonas sp. YGJ3 were investigated. YGJ3 produced pyoluteorin and 2,4-diacetylphloroglucinol, depending on the concentration of Cl− in the culture medium. Cl− stimulated the biosynthesis of pyoluteorin, thereby repressing 2,4-diacetylphloroglucinol biosynthesis. The cell-free extract from the bacteria grown without Cl− showed high activity of monoacetylphloroglucinol acetyltransferase, an essential enzyme in 2,4-diacetylphloroglucinol biosynthesis.

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