红鲫主要器官组织的显微和超微结构研究

Study on Microscopic Structure and Ultrastructure of Main Organs and Tissues of Carassius Auratus Red Variety

目的 系统观察红鲫主要器官组织的显微和超微结构 ,为相关研究提供参考依据。方法 用光学显微镜、透射电子显微镜观察了 2龄红鲫鱼的肝、脾、肾、心脏、腹大动脉、腹大静脉、肠、脑等主要器官组织的显微和超微结构。结果 红鲫肝脏内有游离的胰腺组织 ,脾脏内具有较大的由网状细胞和网状纤维鞘所包绕毛丛动脉而形成的椭球 ;肾单位没有肾小球 ,而由刷毛缘段和集合管两部分组成 ;胃分区不明显 ,只是肠管略增大 ,壁稍增厚 ,从胃段至小肠和大肠消化道基本由粘膜层、粘膜下层、粘膜肌层和浆膜层四层构成 ,类似于哺乳动物的消化道的结构 ,但粘膜肌层薄 ,只是上皮下有一层平滑肌细胞 ;心血管系统管壁组织结构疏松。结论 阐明了红鲫主要器官组织的显微和超微结构 。

Objective To observe systemically the microscopic structure and ultrastructure of main organs and tissues of Carassius Auratus red variety in order to provide the available basis for the interrelated study. Methods The microscopic structure and ultrastructure of the main organs and tissues of two year's old Carassius Auratus red variety were observed by means of optical microscope and transmission electronic microscope. Results There are free pancreas tissues in liver of Carassius Auratus red variety and elliptic globes were observed in the spleen, including netted cells and netted fibre scabbard wrapping blood capillary. Kidney units are composed of brush hair edge segmentes and assemble tubes but without kidney minor ball. Stomach is intestine tube that is slightly large, and the wall is thicker. The alimentary canal is essentially made of four layeres, which are similar to those of mammals. The structures of heart and vessel tissues are loose. Conclusion The microscopic structure and ultrastructure of main organs and tissues of Carassius Auratus red variety have been made clear. The results can provide the available basis for the study of Carassius Auratus red variety.