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首页> 外文期刊>Cell and Tissue Research >Dendritic projections of different types of octopaminergic unpaired median neurons in the locust metathoracic ganglion
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Dendritic projections of different types of octopaminergic unpaired median neurons in the locust metathoracic ganglion

机译：蝗虫后胸神经节中不同类型的章鱼胺能不成对中位神经元的树突状投射

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摘要

Octopaminergic dorsal unpaired median (DUM) neurons of locust thoracic ganglia are important components of motor networks and are divided into various sub-populations. We have examined individually stained metathoracic DUM neurons, their dendritic projection patterns, and their relationship to specific architectural features of the metathoracic ganglion, such as longitudinal tracts, transverse commissures, and well-defined sensory neuropils. The detailed branching patterns of individually characterized DUM neurons of various types were analyzed in vibratome sections in which architectural features were revealed by using antibodies against tubulin and synapsin. Whereas DUM3,4,5 and DUM5 neurons (the group innervating leg and “non-wing-power” muscles) had many ventral and dorsal branches, DUM1 and DUM3,4 neurons (innervating “wing-power” muscles) branched extensively only in dorsal areas. The structure of DUM3 neurons differed markedly from that of the other DUM neurons examined in that they sent branches into dorsal areas and had differently structured side branches that mostly extended laterally. The differences between the branching patterns of these neurons were quantified by using currently available new reconstruction algorithms. These structural differences between the various classes of DUM neurons corresponded to differences in their function and biophysical properties.
机译：蝗虫胸神经节的八巴胺能背侧不成对中位神经元是运动网络的重要组成部分，分为多个亚群。我们已经检查了单个染色的胸廓DUM神经元，它们的树突状投射模式以及它们与胸廓神经节的特定建筑特征（例如纵向束，横连合和定义明确的感觉神经纤维）的关系。在玻璃纤维切片中分析了各种类型的具有个性化特征的DUM神经元的详细分支模式，通过使用抗微管蛋白和突触蛋白的抗体揭示了其结构特征。 DUM3,4,5和DUM5神经元（支配腿和“非翼动力”的肌肉群）有许多腹侧和背侧分支，而DUM1和DUM3,4神经元（支配的“翼动力”的肌肉）仅在背区。 DUM3神经元的结构与所检查的其他DUM神经元的结构显着不同，因为它们将分支发送到背侧区域，并且具有不同结构的侧分支，大部分侧向延伸。这些神经元的分支模式之间的差异通过使用当前可用的新重建算法进行了量化。 DUM神经元的各种类别之间的这些结构差异对应于其功能和生物物理特性的差异。

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