中华蜜蜂嗅叶胚后发育过程中的神经胶质
Glial patterning during the postembryonic development of theolfactory lobe of the honeybee (Apis cerana cerana)
李兆英**
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作者单位：陕西教育学院生物科学与技术系西安710061
中文关键词：中华蜜蜂，嗅叶，胚后发育，神经胶质
英文关键词：Apis cerana cerana，olfactory lobe，development，glial cells
中文摘要： 本研究通过形态解剖、免疫组织化学等技术，对中华蜜蜂Apis cerana cerana Fabricius 工蜂嗅叶胚后发育
中神经胶质的模式进行了比较研究。结果表明:神经胶质在蜜蜂嗅叶的发育过程中起着重要的作用，它们在嗅叶
发育早期就划定了神经纤维网的边界;在嗅觉神经轴突进入嗅叶之前，对神经轴突进行“分选”，并引导它们进入
嗅叶特定的区域，形成神经纤维球;它们不仅规定了神经纤维网的边界和区域，还为神经纤维网提供内部的分隔。
中华蜜蜂神经胶质增殖的高峰期集中在幼虫发育末期和预蛹期。
英文摘要： Glial cells have several functions during the development of the nervous system． The characteristics of glialpatterns during the postembryonic development of the olfactory lobes of Apis cerana cerana Fabricius were investigated using comparative anatomy and BrdU immunohistochemistry． The results show that a continuous layer of glial cell bodies defined the boundaries of all growing neuropiles in early larvae． Just before the olfactory receptor neuron axons entered the ntennal lobe，they encountered the so － called sorting － zone glia． Here，axonal contact lead to a pause in the growth cone’s advance and a subsequent change in growth cone morphology． Finally this enabled the sorting of olfactory receptor neurons axons into discrete fascicles，which terminated in specific glomeruli． Proliferation of glial cells peaked from the
end of the final larval instar stage to the prepupal stage．