大阪鲫卵黄蛋白原和钙离子关系的初步研究

被引:13
作者
李朝军
刘荣臻
王浩
邓戎
机构
[1] 南京大学生物学系
关键词
大阪鲫; 钙离子; 卵黄蛋白原; 苯甲酸雌二醇; 肝细胞; 卵母细胞;
D O I
暂无
中图分类号
学科分类号
摘要
注射苯甲酸雌二醇诱导雄性大阪鲫产生雌性特异血清蛋白(卵黄蛋白原),随着诱导天数的增加,血清中的钙离子浓度升高,同时血清中的卵黄蛋白原的含量也相应增加。在此过程中肝细胞的细胞质中存在大量的钙离子,并进行着旺盛的蛋白合成。雌鱼和被诱导的雄鱼一样在肝细胞内也存在大量的钙离子。正常雄鱼的肝细胞不合成卵黄蛋白原,只有很少的钙离子存在。腹腔注射氯化钙使卵母细胞的卵径增大(实验组为 1.08±0.14mm;对照组为 1.04±0.14mm),并使卵母细胞的蛋白含量升高,同时卵泡膜上毛细血管的分布更为稠密,这表明钙离子可促进卵母细胞的发育和蛋白的吸收。
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页码:297 / 303
页数:7
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