Bromley A K, Dunn J A, Anderson M
Cell Tissue Res. 1979;203(3):427-42. doi: 10.1007/BF00233272.
An electron microscopical study was made of the coeloconic and placoid sensilla on the antennae of the aphids Aphis pomi, Macrosiphum euphorbiae, Nasonovia ribis-nigri, and Pemphigus bursarius. Scanning electron microscopy revealed some variation in morphology which may be functionally important but is more likely to reflect the evolution of these species. The placoid sensilla were shown by tranwo or three neurons is surrounded by two ensheathing cells. The ciliary regions of the dendrites pass through a vacuole into a cavity between an outer and an inner cuticle where they may be connected to the dendritic branches although such connections were no seen. Small pores (8 nm diameter) partially penetrate the cuticle implying that these sensilla have an olfactory function. They are suggested to be important in host selection by alate aphids. The coeloconic sensilla are poreless pegs with nonsensory cuticular projections at their tips. The distal portions of their dendrites contain densely packed microtubules and the cellular arrangement of the sensila is similar to that of the placoid sensilla. It is suggest that they may function as thermoreceptors.
对苹果蚜、大戟长管蚜、黑背蚜和梨瘿蚜触角上的腔锥感器和板状感器进行了电子显微镜研究。扫描电子显微镜显示出一些形态上的差异，这些差异可能在功能上很重要，但更有可能反映了这些物种的进化。通过透射电子显微镜观察到，板状感器由两到三个神经元组成，周围有两个鞘细胞。树突的纤毛区域穿过一个液泡进入外层和内层角质层之间的腔室，在那里它们可能与树突分支相连，尽管没有观察到这种连接。小孔（直径8纳米）部分穿透角质层，这意味着这些感器具有嗅觉功能。它们被认为在有翅蚜虫选择宿主方面很重要。腔锥感器是无孔的栓状物，顶端有非感觉性的角质突起。其树突的远端部分含有密集排列的微管，感器的细胞排列与板状感器相似。有人认为它们可能起温度感受器的作用。
