アオムシコマユバチの寄生をうけたモンシロチョウ幼虫体液内にみられる巨細胞の起原

概要

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In order to determine the origin of the giant cells found in the body fluid of Pieris rapae curcivora on which Apanteles glomeratus has been parasitic, measurement of the change in diameter of the giant cells, histological observation of the host and injection experiment of the eggs or larvae of the parasite to the host body were made. The results were as follows. 1. The giant cells seemed to appear just after hatching of the parasite egg and its initial diameter was assumed to be 17 to 24μ. 2. Just before hatching, the parasite egg was found to have a particular group of cells (called X-cells for convenience) just beneath the chorion. 3. The injection of the parasite eggs (with X-cells) to the host body induced the occurernce of the giant cells in the body fluid of the host. However, no giant cells ware found in the body fluid of the host to which the parsite larvae (without X-cells) were injected. 4. All the injected larvae or the larvae hatched from the injected eggs were encapsulated owing to the haemocytic reaction. 5. Histological sections clearly showed the migration of X-cells into the body cavity of the host at the time of hatching. 6. From these results it is highly probable that the giant cells found in the body fluid of the host have the origin from the peculiar cells in the parasite.
社団法人日本動物学会の論文
1962-08-15