養殖ハマチから分離された滑走細菌の性状

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書誌事項

タイトル別名
  • Characteristics of Gliding Bacterium Isolated from Cultured Yellowtail <i>Seriola quinqueradiata</i>
  • ヨウショク ハマチ カラ ブンリサレタ カッソウ サイキン ノ セイジョウ

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抄録

Since the summer of 1977 there has been prevalent occurrence of epizootic by gliding bacterium among cultured yellowtail Seriola quinqueradiata in Kochi Prefecture. Typical symptoms of the disease observed were as follows; erosin of the mouth, frizzle of the fins and rot of the tail. In this study morphological, biological and biochemical characteristics were investigated with the isolated strain and Flexibacter marinus strain. The isolate was gram negative, oxidase positive and catalase negative 0.2 ?? 0.4×2 ?? 6μm rod with flexible movement. Resting stage was not observed in the fish tissue nor on the medium. Growth was observed on media with seawater but not on media with NaCl. Growth was observed at 37°C but not at pH 4. Production of indol, H2S, gas, acetoin and pigment were negative. Ammonium production was positive. Nitrate reduction was negative. Gelatin liquefaction was positive. Hydrolysis of casein, chitin and starch were positive but hydrolysis of arginine and esculin were negative, Twenty-six carbogydrates were not utilized. Dissolu-tion of hide powder and tyrosin were positive but dissolution of xantine was negative. Lipase, urease and congo red tests were positive but dissolution of xantine was negative. Lipase, urease and congo red tests were positive. From these results the isolated strain was classified into the genus Cytophaga.

収録刊行物

  • 日本水産学会誌

    日本水産学会誌 48 (8), 1107-1112, 1982

    公益社団法人 日本水産学会

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