EFFECT OF BRAIN ON SUBOESOPHAGEAL GANGLION AND DETERMINATION OF VOLTINISM IN BOMBYX MORI

被引:21
作者
MOROHOSHI, S
OSHIKI, T
机构
[1] Faculty of Agriculture, Tokyo University of Agriculture and Technology, Fuchu-shi Tokyo-to
关键词
D O I
10.1016/0022-1910(69)90222-4
中图分类号
Q96 [昆虫学];
学科分类号
摘要
It is known that voltinism in the silkworm is affected by inhibitory and promoting functions of the brain through the nerve commissures on the suboesophageal ganglion or the corpora allata. It was demonstrated that the brain has only an accelerative function through the nerve commissures on the secretion of the suboesophageal ganglion and has no inhibitory function. Voltinism in the silkworm is determined by the amount of the suboesophageal ganglion hormone. When silkworms have a large quantity of this hormone, they lay diapause egg batches, and when they have a small quantity, they lay non-diapause egg batches. The quantity of its hormone is modified by two factors; one is the brain-suboesophageal ganglion system (diapause direction) and the other is the brain-corpora allata system (non-diapause direction). © 1969.
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页码:167 / +
页数:1
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