@article{oai:soar-ir.repo.nii.ac.jp:00012124, author = {KOENUMA, AKIRA and TSUBOUCHI, MASAMICHI and KONNO, TOHORU}, issue = {2}, journal = {信州大学理学部紀要}, month = {Mar}, note = {Termination of diapause occurs with activation of brain-prothoracic gland system in diapausing pupae of Samia cynthia pryeri. It does not occur with 20℃ incubation, but it occurs with 26℃ incubation. To investigate the cause of this fact histological change of neurosecretory cells of pupal brain during incubation and effect of β-ecdysone injection were observed. In histological observation, phloxinophilic granules of lateral B type cells in pars intercerebralis decreased on and after the 5-th day of 20℃ incubation. Diapausing pupae developed into imagines with β-ecdysone injection during 20℃ incubation. From these results, it is concluded that fail of termination of diapause with 20℃ incubation is not resulted from the inactive state of neurosecretory cells in brain but it is resulted from the inactive state of ecdysone secretory system in this temperature., Article, 信州大学理学部紀要 21(2): 105-114(1987)}, pages = {105--114}, title = {Effect of Temperature of Incubation on Activation of Brain-Pro thoracic Gland System of Diapausing Pupae in Samia cynthia pryeri}, volume = {21}, year = {1987} }