Ultrastructure of male accessory glands in the scorpionfly Sinopanorpatincta (Navás, 1931) (Mecoptera: Panorpidae)

　　論文信息：Qi-Hui Lyu, Bao-Zhen Hua. Ultrastructure of male accessory glands in the scorpionfly Sinopanorpatincta (Navás, 1931) (Mecoptera: Panorpidae). Arthropod Structure&Development (2017) 46: 627-634. http://dx.doi.org/10.1016/j.asd.2017.04.001

　　中科院四區(qū)，IF = 1.546

　　論文摘要：The ultrastructure of male reproductive accessory glands was investigated in the scorpionfly Sinopanorpatincta (Navás,1931) (Mecoptera: Panorpidae) using light and transmission electron microscopy. The male accessory glands comprise one pair of mesodermal glands (mesadenia) and six pairs of ectodermal glands (ectadenia). The former opens into the vasa deferentia and the latter into the ejaculatory sac. The mesadenia consist of a mono-layered elongated columnar epithelium, the cells of which are highly microvillated and extrude secretory granules by means of merocrine mechanisms. The epithelium of ectadenia consists of two types of cells: the large secretory cells and the thin duct-forming cells. These two types of cells that join with a cuticular duct constitute a functional glandular unit, corresponding to the class III glandular cell type of Noirot and Quennedey. The cuticular duct consists of a receiving canal and a conducting canal. The secretory granules were taken up by the receiving canal and then plunged into the lumen through the conducting canal.