メダカ胚における周縁核の有糸分裂の生体観察

書誌事項

タイトル別名
  • AN <i>IN VIVO</i> OBSERVATION OF MITOTIC MULTIPLICATION OF PERIBLAST NUCLEI IN EMBRYO OF THE MEDAKA, <i>ORYZIAS LATIPES</i>
  • メダカハイ ニ オケル シュウエンカク ノ ユウシ ブンレツ ノ セイタイ カンサツ エイブン

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説明

1) Behavior of periblast nuclei in the morula and the blastula stages of a freshwater teleost, the medaka, Oryzias latipes was observed in vivo and in sections.<br> 2) They first appear in the early morula, 64-cell stage as free nuclei in the periblast.<br> 3) They increase synchronously and mitotically until the blastula stage.<br> 4) Their synchronism lasts longer than that of the division of blastomeric nuclei, probably because of their rather even environmental conditions compared with that of blastomeres.<br> 5) Their mitotic division ceases at the blastula stage, suggesting a disturbance by the epibolic movement.

収録刊行物

  • 日本水産学会誌

    日本水産学会誌 27 (10), 897-902, 1961

    公益社団法人 日本水産学会

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