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题目:: Fine structure of cells specialized for secretion of aggregation pheromone in a nitidulid beetle Carpophilus freemani (coleoptera: Nitidulidae).
作者:: Nardi(J B),Dowd(P F),Bartelt(R J)
状态:: 发布时间2008-07-14 , 更新时间 2008-07-14
期刊:: Tissue Cell
摘要:: The cells that secrete the aggregation pheromone of the male nitidulid beetle Carpophilus freemani are exceptionally large and lie within the body cavity. These secretory cells share many ultrastructural features with cells of other pheromone and defense glands, but they also have several unique features. A deep invagination of the surface of each of these cells acts as the secretory surface for the pheromone. The invaginated surface is highly convoluted and surrounds a narrow cuticular ductule that is connected to the tracheal system. This surface is not covered with microvilli as the comparable surfaces are in other insect secretory cells. Each secretory cell is filled with an abundance of lipid spheres that presumably contain precursors for the pheromone. Examining cells from beetles producing different levels of pheromone showed that sizes of secretory cells are positively correlated with rates of pheromone production. Whereas secretory and ductule cells of other insect glands are usually epidermal cells, these cells of nitidulid beetles represent the first pheromone glands in which oenocytes are believed to have been recruited for pheromone production and tracheal cells have been recruited as ductules for these cells.
语言:: eng
DOI:

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