蚊幼虫の齢期別栄養条件が無吸血産卵性に与える影響

概要

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Experiments were carried out to determine in what larval stage malnutrition affects ovary development of Culex pipiens molestus and autogenous strain of Aedes togoi. Malnutrition effects were evaluated by dissecting the females on the 5th day after emergence, counting total number of ovarioles, and observing degree of follicular development as well as measuring wing length. 1) Four groups of larvae were reared under poor nutrition during each one larval stage. In both species almost only in the 4th stage larvae the malnutrition affected the ovary development. 2) The 4th stage larvae were reared under such condition during earlier or latter period of the stage. In Culex pipiens molestus, the malnutrition in both the earlier and the latter period of the 4th larval stage caused the decrease of total number of ovarioles and eggs. Though the effect in the latter period of the stage was stronger than in the earlier period, the autogeny rate of the mosquito was more than 80%. In Aedes togoi, the malnutrition in the earlier period of the 4th larval stage had almost no effect on the development of ovaries and body size. On the other hand the malnutrition in the latter period of the stage not only reduced the total number of ovarioles but also made the adult mosquito difficult to produce autogenous eggs.
日本衛生動物学会の論文
1984-03-15