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<Author> Hironori SAKURAI ; Yosiki MURAKAMI ; Tsuguo KOHAMA ; Tadashi TERUYA |
To study the mechanism of gamma-radiation in the female adults of the West Indian sweet potato weevil, Eusceps postfasciatus, the effects of gamma-radiation on their oogenesis and digestive function were examined histologically. In the irradiated female adults, histological changes related to the inhibition of oogenesis were found in light-and electron-microscopic observations. In the irradiated aduls, a collapse of epthelial tissue of the midgut was also observed. This suggested digestive obstruction resulting in the short life-span of gamma-radiated female adults. |
