丝光绿蝇触角鞭节感受器官超显微形态研究
Ultrastructure of the antennal funiculus sensory organs of adult Lucilia sericata (Meigen) (Diptera: Calliphoridae)
刘贤慧** 李心钰** 张 东***
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DOI：10.7679/j.issn.2095-1353.2015.125
作者单位：北京林业大学自然保护区学院，北京 100083
中文关键词：丝光绿蝇，触角鞭节，透射电镜，激光共聚焦显微镜，感受器，感觉囊
英文关键词： Lucilia sericata, antennal funiculus, TEM, LSCM, sensilla, sensory sacculus
中文摘要：
【目的】 观察研究重要的医学昆虫丝光绿蝇Lucilia sericata触角感受器的形态，以明确不同类型感受器的结构及功能。【方法】 采用透射电镜与激光共聚焦显微镜技术相结合的方法。【结果】 明确并详细描述了毛型感受器、锥型感受器、腔锥型感受器及感觉囊的形态结构。【结论】 毛型感受器和锥型感受器可能为化学感受器，腔锥型感受器可能为温湿度感受器；感觉囊中的无孔锥型感受器可能为温湿度感受器，类锥型感受器及类腔锥型感受器可能为化学感受器，各类型感受器同时行使功能，表明感觉囊为一个功能复合体。蝇类触角的感器类型多样、囊结构复杂，可作为研究昆虫触角感器形态、功能及演化的模式类群。
英文摘要： [Objectives] To investigate the ultrastructure, and discuss the potential functions of antennal sensilla on funiculus of Lucilia sericata, which is a synanthropic fly of great medical importance. [Methods] Using transmission electron microscopy and a laser scanning confocal microscope. [Results] The ultrastructure of four types of sensilla, including trichoid sensilla (Tr), basiconic sensilla (Ba), coeloconic sensilla (Co), and sensory sacculus (SS), were identified and descripted. [Conclusion] Tr and Ba may function as olfactory receptors, while Co might be involved in thermo- or hygro- reception. In the sensory sacculus, non-pore basiconic sensilla could be hygro- and thermo- sensilla, whereas basiconic-like sensilla and coeloconic-like sensilla might indicate a potential chemoreceptor function. Sensilla in the sacculus can function together, which demonstrates that the sensory sacculus acts as a functional complex. Due to the various types of sensilla and the complex sacculus, the antennae of flies could be a useful model for morphological, functional and evolutionary research on insect antennae.