真骨鱼类卵膜孔精子引导系统的数学模型

继１９８７年发现泥鳅成熟卵卵膜孔涡旋状结构后,作者又发现大银鱼卵膜孔区域呈现沟脊放射状结构,通过对大银鱼,鲂鱼卵孔纵切面曲线的数学建模及其对这种给切面曲线成因的研究,     

Chorion surface ultrastructure of loach Misgurnus anguillicaudatus: adaptation to the environment and correlation with the reproductive strategy

The ultrastructure of the egg chorion surface in the loach Misgurnus anguillicaudatus was investigated using scanning electron microscopy (SEM). A single micropyle, which belonged to type II, was found at the animal pole of an M. anguillicaudatus egg. Several sinistral grooves which originated at the micropyle probably served for sperm guidance. The egg envelope had numerous pores with bud-like fillings and a regular arrangement like honeycomb. Lots of small knobs were situated on the zona radiata at the vegetal pole. Water contact triggered egg stickiness within about 10 seconds. The egg surface became smooth after treatment with trypsin solution. The features of the micropyle, pores and stickiness were correlated with the reproductive strategy of the loach and are important for egg identification.