黑翅土白蚁下唇腺超微结构研究

here is phagostimulating pheromone which can be released on the surface of food in the secretion excreted by the labial gland of the termite, in order to explore the mechanism by which the cell of O. formosanus`s labial gland excretes phagostimulating pheromone, we observe the ultrastructure of O. formosanus`s labial gland by tools like scanning electron microscope(SEM) and transmission electron microscope(TEM). Results of the observation display some obvious characters of O. formosanus`s labial gland. Firstly, worker`s labial gland which is oblate and connected by labial gland duct can be classified into two types called typeⅠand type Ⅱ by the different amount of microvilli and vacuole. Secondly, two types of worker`s acini cell are both monocyte and contain manifold organelles, but on the contrary acini cell of soldier and alate is coenocytic and lacks of organelle. Furthermore, it can be observed that acini`s cytoplasm has difference between soldier and alate. When concluding this experiment`s result and former reports of this aspect we can catch that acini`s type changes as the type of the termite, besides, the acini in the labial gland of worker, soldier and alate is much different in conformation and inner substance.