【摘要】 用电镜和细胞化学技术对鸡和鹌鹑(Coturntixcoturntix)肺表面活性物质的定位、形成和主要功能进行了研究。经电镜结合磷脂和AcP酶定位,证明禽肺同哺乳动物一样,有表面活性物质,存在于三级支气管、肺房、漏斗和呼吸毛细管始段,但其主要作用可能不是防止塌陷。禽肺的板层小体是表面活性物质的贮存库,属溶酶体系列物,来源于粗面内质网和高尔基复合体,其发生过程大致经历前板层体、小板层体和成熟板层体三个阶段,其间无明显界限。更多还原

【Abstract】 Localication,formation and main function of surfactant in chick and quail ( Coturntix coturntix ) were studied by using the transmission electron microscope and ultracytochemical techiques.Localicated with phospholipid and AcPase under transmission electron microscope,it was confirmed that there were surfactant in the lungs of fowls,which spreaded along the surface of the tertiary bronchi,atia,infundibulium and first part of the respiratory capillaries,but whose main function was not to prevent collapse.Lamellar bodies of lungs of fowls belonged to a series of lysomomes and arose from rough endoplasmic reticulum and Golgi complex.The formation of lamellar bodies experienced three main stages:prelamellar body stage,small lamellar body stage and matural lamellar body stage,but there were no apparent bounds from one stage to next.更多还原