摘要
运用透射电镜观察了莫桑鼻给非鲫卵母细胞内卵黄球的结构;卵黄球由被膜、结晶体及两者之间的非结晶区三部分组成。卵黄球结晶体呈斜方点阵,组成结晶体的卵黄高磷蛋白分子排列呈拟六角形列阵。本文还探讨了卵黄球结晶体形成的可能机制及生物学意义。
The yolk spheres of Tilapia mossmabica have been studied by transmission electron microscopy. The structure of yolk sphere can be distinguished into three main parts: limiting membrane; central crystalline body or bodies and non-crystalline area. The yolk-sphere crystals possess an orthorhombic lattice and the lipovitellin molecular particles in the crystalline body are arrayed in pseudohex-agonal pattern. The mechanism of formation and biological significance of the yolk-sphere crystals are also discussed.
出处
《生物物理学报》
CAS
CSCD
北大核心
1992年第1期109-113,共5页
Acta Biophysica Sinica
关键词
莫桑鼻给非鲫
卵黄球结晶体
电镜
Tilapia mossambica, yolk-sphere crystals, electron microscopy, orthorhombic lattice
