Change of tissue protein related to ovarian development in the fleshfly, Sarcophaga ruficornis Fabricius
1991
Wei, B. | Sakurai, H. | Takeda, S. (Gifu Univ. (Japan). Faculty of Agriculture)
In order to clarify the mechanism of ovarian development in the freshfly, Sarcophaga ruficornis Fabricius, the interrelationship of protein utilization was studied among ovary, pupal fat body and blood. Protein content in pupal fat body decreased markedly after emergence. The content in blood changed showing N-shaped diminution pattern, which indicates 3 steps in the process absorbing blood protein by ovary. The blood protein content was lower and ovarian development delayed in sugar-fed flies compared to liver-fed ones. Ovariectomy of liver-fed flies caused remarkable increase of blood protein. Results indicated the transportation of reserved protein in pupal fat body to ovary via blood. In male flies the protein did not deposit in blood after emergence and was consumed with their active mating behavior
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