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首页> 外文期刊>Zoological Science >Firing activities of neurosecretory cells producing diapause hormone and its related peptides in the female silkmoth, Bombyx mori. II. Mandibular and maxillary cells
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Firing activities of neurosecretory cells producing diapause hormone and its related peptides in the female silkmoth, Bombyx mori. II. Mandibular and maxillary cells

机译：雌性家蚕（家蚕）中产生滞育激素及其相关肽的神经分泌细胞的激发活性。二。下颌和上颌细胞

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摘要

A gene encoding a precursor polyprotein of diapause hormone (DH) and four related peptides is expressed by three groups of neurosecretory cells in the suboesophageal ganglion (SOG) of Bombyx mori. Long-term chronic recordings of firing activities were made from a common axonal tract (the maxillary nerve) of two groups of cells localized in the mandibular and maxillary neuromeres of SOG during pupal-adult development. Mandibular and maxillary cells usually produced a cluster of action potentials at an interval of 30-60 min during pupal-adult development and there was no significant difference in the firing activity profile between diapause-egg and non-diapause-egg producers. We suggest that rather than DH secretion, pupal mandibular and maxillary cells are involved in the secretion of DH-related neuropeptides. DH secretion seems to be assigned to the third group of cells (labial cells); hence, there may be different posttranslational processing of the precursor polyprotein in different neurosecretory cell groups.
机译：家蚕食管下神经节（SOG）中的三组神经分泌细胞表达一种编码滞育激素（DH）和四个相关肽的前体多蛋白的基因。从p成人发育过程中位于SOG的下颌和上颌神经绒毛中的两组细胞的共同轴突道（上颌神经）进行了长期的射击活动的长期记录。下颌和上颌细胞通常在成年development发育期间以30-60分钟的间隔产生一簇动作电位，滞育卵和非滞育卵生产者的射击活动曲线没有显着差异。我们建议，p的下颌和上颌细胞不是DH的分泌，而是与DH相关的神经肽的分泌有关。 DH分泌似乎与第三组细胞（阴唇细胞）有关。因此，在不同的神经分泌细胞群中，前体多蛋白的翻译后加工过程可能不同。

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