Studies on the Neurosecretory Cells in the Silkworms, Bombyx mori (Lipidoptera : Bombycidae). II. : Ultrastructural Changes of the Neurosecretory Cells after Severance of Nervi Corporis Cardiaci and Circumesophageal Connectives
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This paper deals with the ultrastructural changes of the neurosecretory cells in pars intercerebralis of Bombyx mori after severance of both nervi corporis cardiaci and circumesophageal connectives. The neurosecretory granules of type I cells decreased their electron densities, showing that their granulations were disturbed. However, the cisternae of rough-surfaced endoplasmic reticulum (rER) or type I cells showed swollen forms, like those of normal brains, while in the previous study rER had shown non-shollen forms under the condition of the severance of nervi corporis cardiaci alone. These observations suggest that type I cells also have another function to act on the nerve cells terminating in subesophageal ganglion through circumesophageal connectives.
- 日本応用動物昆虫学会の論文
- 1979-11-25
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