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|Other Titles:||The Morphology and Distribution of Sensillae and Sensory Neurons Distributed on the Wings of American Cockroach (Periplanta Americana)|
Department of Life Science, NTNU
There are many different types of sensillae distributed on the surface of wings in american cockroach. According to the research investigated using a scanning electron microscope, we have found seven types of sensillae on the dorsal and ventral surface of wings. These sensillae might be termed short-trichodeum, long-trichodeum, fine-trichodeum, chaeticum, short-basiconicum, long-basiconicum and coeloconicum. Each type of sensilla has a specific distribution pattern. There are five types of sensilla distributed on the dorsal surface and three types on the ventral surface of forewings. There are six types of sensillae distributed on the dorsal surface of hindwings, but we have found few or no sensilla on the ventral surface of hindwings. The quantity of long-trichodeum sensilla was more abundant than any other types on the dorsal surface of forewings, the chaeticum sensilla was more abundant on the ventral surface of forewings, whereas the long-basiconicum sensilla was the most abundant on the dorsal surface of hindwings. In addition, we used methylene blue to dye the wings and found that there were many sensory neurons distributed within fore- and hindwings. By their appearances, the sensory neurons could be divided into three types: monopolar, bipolar and multipolar neurons. We suggested that the wings of american cockroach might not only function in flying, but also could detect the changes of surrounding environment using sensillae. The messages collected form sensillae may deliver to central nervous system by the sensory neurons distributed within wings, and subsequently modulate behaviors.
|Appears in Collections:||生物學報|
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