有輪条虫卵の孵化機転におよぼす温度ならびにタイロード液の影響

概要

論文の詳細を見る
The present study was carried out to examine the effect of Tyrode's solution and of temperature on the hatching of Raillietina cesticillus onchosphere in vitro. After the proglottides of R. cesticillus had been immersed for some limited length of time in Tyrode's solution at 15℃, 20℃ and 30℃, the proglottides were torn to pieces by a needle for releasing onchospheres into Tyrode's solution (30℃). The hatching rates of onchospheres after some limited length of time were compared between groups with different temperature treatments. The resutls can be summarized as follows: 1. The onchospheres in proglottides immersed for a longer period of time in Tyrode's solution at a low temperature (15℃) had an extremely low hatching rate. 2. A high hatching rate was obtained when freshly excreted proglottides were kept in Tyrode's solution at 30℃ for less than 60 minutes. The highest rate was observed with onchospheres from the proglottides treated in Tyrode's solution at 30℃ after a pre-treatment at a low temperature (20℃). The highest rate was 63%. A treatment of proglottides at a high temperature in Tyrode's solution followed after keeping them at a low temperature in Tyrode's solution accelerated the hatching of onchospheres. From these results it is concluded that a treatment of proglottides at a high temperature excerts a favourable effect on inducing hatching of the onchosperes.
社団法人日本動物学会の論文
1967-10-15