Croll R P
Brain Res. 1987 Mar 10;405(2):337-47. doi: 10.1016/0006-8993(87)90303-9.
The distribution of monoamines in the central ganglia of the nudibranch gastropod Hermissenda crassicornis was examined through the histological localization of both glyoxylic acid-induced fluorescence and serotonin-like immunoreactivity. Glyoxylic acid histochemistry revealed several clusters of catecholamine-containing cells which were located principally in the cerebropleural ganglia. One large unpaired catecholamine-containing cell was also located in the right pedal ganglion. Glyoxylic acid histochemistry and immunohistochemistry together revealed several serotonin-containing cells. The most prominent of these was a bilateral pair of cells (the metacerebral giants or MCG's) with somata located in the anterior lobes of the cerebropleural ganglia and each with a single large axon running through the ipsilateral cerebrobuccal connective to the buccal ganglia. Apart from the MCG's and a few smaller ones in the cerebropleural ganglia, most other serotonergic cells were located in the pedal ganglia. Among the serotonergic cells identified in the pedal ganglia was a single unpaired giant cell (LP1) located only on the left side. The neurites of LP1 projected through the cerebropleural ganglia to the contralateral pedal ganglion. Similarities in the distribution of monoamines in different gastropod species are discussed.
通过乙醛酸诱导荧光和血清素样免疫反应的组织学定位，研究了裸鳃亚目腹足纲动物厚角海兔中枢神经节中单胺的分布情况。乙醛酸组织化学显示，有几簇含儿茶酚胺的细胞，主要位于脑侧神经节。在右足神经节中还发现了一个大的不成对的含儿茶酚胺细胞。乙醛酸组织化学和免疫组织化学共同显示了几个含血清素的细胞。其中最突出的是一对双侧细胞（大脑巨细胞或MCG），其胞体位于脑侧神经节的前叶，每个细胞都有一条大的轴突，穿过同侧脑口连接至口神经节。除了MCG和脑侧神经节中的一些较小细胞外，大多数其他血清素能细胞位于足神经节。在足神经节中鉴定出的血清素能细胞中，有一个仅位于左侧的不成对巨细胞（LP1）。LP1的神经突穿过脑侧神经节延伸至对侧足神经节。文中讨论了不同腹足纲动物中单胺分布的相似性。
