Urbanek Aleksandra, Łuszczek Dorota, Kapusta Małgorzata
Department of Invertebrate Zoology and Parasitology, University of Gdańsk, Wita Stwosza 59, Gdańsk, 80-308, Poland.
Laboratory of Electron Microscopy, University of Gdańsk, Wita Stwosza 59, Gdańsk, 80-308, Poland.
Microsc Res Tech. 2016 Dec;79(12):1230-1235. doi: 10.1002/jemt.22783. Epub 2016 Oct 2.
Acanthoscelides obtectus, a serious pest with a worldwide distribution, damages stored seeds of Phaseolus sp. To acquire a better understanding of the sensory orientation of bean weevils, their antennal and palpal sensilla were investigated. The antennae and palps possess several types of sensory hairs: blunt-tipped sensilla chaetica and trichoidea and also sharp-tipped sensilla trichoidea, these last being the most numerous. Sensilla basiconica are present only on the flagellomeres, but Böhm bristles occur on the basal sclerite and scape of the antennae. The terminal segments of the maxillary and labial palps bear a group of sensilla styloconica with single apical pores. Sensilla coeloconica are located only on the terminal palpal segments. They were unable to detect any distinct morphological differences between males and females. The possible chemosensory, mechanosensory, and thermo-/hygroreceptive functions of the sensilla are discussed.
菜豆象是一种分布于全球的严重害虫，会损害菜豆属植物的储存种子。为了更好地了解菜豆象的感官定向，对其触角和须的感器进行了研究。触角和须拥有几种类型的感觉毛：钝尖的毛形感器和锥形感器，还有尖形的锥形感器，后者数量最多。基部锥形感器仅存在于鞭节上，但博姆氏鬃毛出现在触角的基部骨片和柄节上。上颚须和唇须的末端节段有一组具单个顶端小孔的栓锥形感器。腔锥形感器仅位于须的末端节段。他们未能检测到雄性和雌性之间任何明显的形态差异。文中还讨论了这些感器可能的化学感受、机械感受以及热/湿感受功能。
