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https://doi.org/10.1016/0022-1910(73)90082-6
Copy DOIJournal: Journal of Insect Physiology | Publication Date: Aug 1, 1973 |
Citations: 2 |
The rôle of a factor produced by neurosecretory cells of the suboesophageal ganglion in the regulation of the level of RNA synthesis in some tissues of the female house cricket was studied in vivo and in vitro. It was shown that the action of the suboesophageal ganglion in vivo causes a reduction in the level of RNA synthesis in the neurosecretory cells of the pars intercerebralis, and also in the cells of the follicular epithelium, but it does not affect synthesis in the fat body cells. In experiments in which the action of the ganglion was examined in vitro, it was not found to have any influence on synthesis in the follicular epithelial cells, but the synthesis in the fat body cells was reduced. The causes of the differences obtained in the two types of experiments are discussed, and it is suggested that the suboesophageal ganglion acts directly on the fat body, but indirectly on the follicular epithelial cells through the corpora allata.
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