杂色鲍鳃下腺的显微和亚显微结构研究

bstract: Microstructure and ultrastructure of the hypobranchial gland of Haliotis diversicolor have been studied by light and electron microscopy. The results showed that the hypobranchial gland is fold pleats organ, highly glandular area of the epidermal lining the roof of the mantle cavity. Two such glandular areas,one on each side of the rectum, occur in Haliotis diversicolor. Left one is much large than right one. Under light microscope, on H-E stain section, four types cells can be distinguish: cells with weak basophilic fibrillar elements; cells with acidophilic granular substance; cells with strong basophilic fibrillar elements and ciliated cells. In the basal lamina region under gland epithelium, there are a few connective tissue; Surface view of the hypobranchial gland could be see by scanning electron microscope, there are cilia and different kinds of secretions distributed. Ultrastructure of the hypobranchial gland could be understand by transmission electron microscope, supporting cells, sensory cells and seven types gland cell were observed to form the glandular epithelium; cells with much rough endoplasmic reticulum,smooth muscle fiber and nerve endings were found beneath glandular epithelium, among basal lamina region.