アブラボテ及びイチモンジタナゴ卵の精子凝集作用

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概要

• 論文の詳細を見る

• When mature unfertilized eggs Acheilognathus limbata and A. cyanostigma are added to the sperm artiffcially, spermatoza become very active around the micropyle membrane where a remarkable aggregation of spermatozoa occurs. In some eggs, however, the surface of the vegetal pole also induces sperm aggregation, although not conspicuous as in the case of the micropyle area. Such aggregation on the vegetal pole takes place in the eggs which have come in contact with the animal pole of the egg located just in front of the former, when they are oviposited through the elongated ovipositor making a single row with the vegetal pole of each in front, while any non-contacted egg failed to aggregate spermatozoa on the vegetal pole. The factor responsible for sperm activation and aggregation can be transferred to the intermediate area other than the both poles of the egg membrane, which have come in contact artificially with the micropyle area of another mature unfertilized egg. These facts show that the factor is probably a chemical substance. The factor is not species-specific to heterologous spermatozoa of fish belonging to either different genera or families. But no aggregation of spermatozoa can be observed around the micropyle of eggs of the minnow, the gold fish, the mud loach, etc., all of which spawn both eggs and spermatozoa simultaneously into the fresh water when the male chases the female. The factor located around the micropyle membrane can readily be removed within few minutes by treating the eggs with acidified distilled water, while alkalinized water is not effective. However, spermatozoa aggregate remarkably around the micropyle area when the eggs are exposed to acid side distilled water and inseminated. On the contrary, in alkaline side water the eggs fail to aggregate spermatozoa. These facts may be interpreted as indicating that the factor dissolves into acid water, attracting spermotozoa toward the eggs.

• 社団法人日本動物学会の論文
• 1959-12-15

著者

• 鈴木 亮

  淡水研究所上田支所

• 鈴木 亮

  愛知学芸大・生

関連論文

• マス属間雑種の発生過程における幼生型および成体型ヘモグロビンの発現(発生学)
• タナゴ類卵の精子凝集要因(発生)
• アブラボテ及びイチモンジタナゴ卵の精子凝集作用
• タナゴ類及びヒガイの卵門附近に於ける異種精子の凝集(生理・発生・実験形態・生化学・分類・生態)
• 綜合討論(形態学・遺伝学)
• 綜合討論(発生学・実験形態学)
• タナゴ類の卵門附近に於ける精子の凝集(発生学・実験形態学)
• 異種精子によるキンギヨ卵の発生(予報)
• コイ科魚類に於ける人工排卵の研究(遺伝学・発生学・実験形態学)
• シマドジヨウの雌雄同体とマドジヨウとの交雑について
• タナゴ類属間雑種の性と不妊性
• コイ科魚類における交雑実験-III : シナイモツゴとタモロコの正逆交雑
• コイ科魚類における交雑実験-I : タモロコとモツゴの正逆交雑
• マドジョウの養殖に関する2, 3の実験
• コイ科魚類における交雑実験-IV : ゼゼラとタモロの正逆交雑
• タナゴ類属間雑種の外部形態

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