CRUSTACEAN CARDIOACTIVE PEPTIDE-IMMUNOREACTIVE NEURONS INNERVATING BRAIN NEUROPILS, RETROCEREBRAL COMPLEX AND STOMATOGASTRIC NERVOUS-SYSTEM OF THE LOCUST, LOCUSTA-MIGRATORIA
CRUSTACEAN CARDIOACTIVE PEPTIDE-IMMUNOREACTIVE NEURONS INNERVATING BRAIN NEUROPILS, RETROCEREBRAL COMPLEX AND STOMATOGASTRIC NERVOUS-SYSTEM OF THE LOCUST, LOCUSTA-MIGRATORIA
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DOI：
10.1007/bf00318163
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发表时间：
1995-03-01
影响因子：
3.6
通讯作者：
HOMBERG, U
中科院分区：
文献类型：
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作者：
DIRCKSEN, H;HOMBERG, U
甲壳动物心脏活性肽免疫反应神经元在蝗虫 Locusta migratoria 大脑中的分布和形态已被确定。在总共 500 多个免疫反应性神经元中，约 380 个是视叶中的中间神经元。这些神经元侵入髓质的多层和小叶的远端部分。此外，一小群神经元投射到副髓质、椎板和中原大脑的几个区域。在中脑中，12组或单个神经元已被重建。四组神经支配上外侧和腹外侧原大脑以及侧角的区域。两个细胞群在中央体的前后或上正中原脑中具有双侧树枝状结构。中央体亚基以及侧副叶和中副叶的分支由四个额外的细胞群产生。两个局部中间神经元支配触角叶。三脑细胞向对侧投射到额神经节中，似乎在返神经、下脑神经节和雨积神经节中产生纤维。贲门神经 III 和贲门神经以及咽扩张肌末端的曲张纤维由两个食管下神经元产生。一些蝗虫神经元与甲虫和飞蛾的免疫阳性神经元非常相似。我们的结果表明，该肽可能是（1）许多大脑中间神经元产生的调节物质，以及（2）食管下神经分泌细胞释放的神经激素。
The distribution and morphology of crustacean cardioactive peptide-immunoreactive neurons in the brain of the locust Locusta migratoria has been determined. Of more than 500 immunoreactive neurons in total, about 380 are interneurons in the optic lobes. These neurons invade several layers of the medulla and distal parts of the lobula. In addition, a small group of neurons projects into the accessory medulla, the lamina, and to several areas in the median protocerebrum. In the midbrain, 12 groups or individual neurons have been reconstructed. Four groups innervate areas of the superior lateral and ventral lateral protocerebrum and the lateral horn. Two cell groups have bilateral arborizations anterior and posterior to the central body or in the superior median protocerebrum. Ramifications in subunits of the central body and in the lateral and the median accessory lobes arise from four additional cell groups. Two local interneurons innervate the antennal lobe. A tritocerebral cell projects contralaterally into the frontal ganglion and appears to give rise to fibers in the recurrent nerve, and in the hypocerebral and ingluvial ganglia. Varicose fibers in the nervi corporis cardiaci III and the corpora cardiaca, and terminals on pharyngeal dilator muscles arise from two subesophageal neurons. Some of the locust neurons closely resemble immunopositive neurons in a beetle and a moth. Our results suggest that the peptide may be (1) a modulatory substance produced by many brain interneurons, and (2) a neurohormone released from subesophageal neurosecretory cells.