Effect of Gluconic Acid on the Production of Cellulose in Acetobacter xylinum BRC5

  • PARK, SANG TAE (Molecular Microbiology Laboratory, Department of Biology, and Bioproducts Research Center, Yonsei University) ;
  • TAEKSUN SONG (Molecular Nmicrobiology Laboratory, Department of Biology, and Bioproducts Research Center, Yonsei University) ;
  • YOUNG MIN KIM (Molecular Nmicrobiology Laboratory, Department of Biology, and Bioproducts Research Center, Yonsei University)
  • 발행 : 1999.10.01

초록

Four mutants of Acetobacter xylinum BRC5 defective in gluconic acid production were isolated from UV-irradiated cells. The gluconic acid-negative mutants did not show glucose oxidase activity. The mutants were also defective in cellulose production. A randomly selected mutant grown in the Hestrin-Schramm medium (pH 6.0) supplemented with gluconic acid, however, was found to synthesize cellulose. The mutant grown in Hestrin-Schramm medium whose pH was adjusted to 5.0 with HC1 and contained no gluconic acid also produced cellulose. Wild-type cells grown under the same condition synthesized cellulose more rapidly than those grown in the pH 6.0 medium.

키워드

참고문헌

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