カンテンコケムシの芽体の発生と成長について

概要

論文の詳細を見る
Ancestrulae, i.e., primary zooids evaginated from statoblasts of the freshwater bryozoan, Pectinatella gelatinosa OKA possess three buds of different size immediately after germination. In natural condition, these buds develop and grow into new zooids, thus an ancestrula forms bryozoan colony. However, in low food supply condition at laboratory culture, growth of buds was inhibited perfectly. When the ancestrula was amputated or ligated at the polypide below the lophophore, main bud developed quickly and new polypide evaginated. Therefore, it is indicated that growth of buds is inhibited by the anterior part of the polypide. When the ligation of polypide was performed at the posterior level over the digestive canal, main bud did not develop. Therefore, nutrition supply from the degenerated polypide may play an important role in the development and growth of the main buds.
横浜国立大学の論文
1990-03-25