Mature Cells Attracting Cells of the Complementary Mating Type in Euplotes woodruffi syngen 3 (Ciliophora, Hypotrichida)(Cell Biology)
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概要
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A trap for attracting ciliate cells was devised. By using the trap and cells of Euplotes woodruffi syngen 3, effects of gamone-like substance on attraction of cells were studied. Various types of cells such as the same mating type cells, complementary mating type cells, conjugating pairs, exconjugants and immature cells were used as bait in the trap. The cells were prepared for bait by freeze-thawing. Mature cells were attracted to the complementary mating type cells, but not to the same mating type cells and immature cells. Gl phase cells as well as late S to D phase cells attracted the complementary mating type cells. Conjugating pairs, both selfing and heterotypic pairs, and even exconjugant cells had strong attraction for mature cells. Exconjugant cells which were at 6 cell divisions after conjugation had lost their attracting ability. Immature cells, on the contrary, showed no interest in mature cells. Food organisms for bait gathered both mature and immature cells more rapidly than mature cells did. Preliminary studies showed that mature cells of E. woodruffi syngen 3 had no effect of attraction of mature cells of E. woodruffi syngen 1 and E. aediculatus.
- 社団法人日本動物学会の論文
- 1991-08-15