紫外线处理不同发育时期的金鱼幼胚产生的生理效应  

Physiological Effects of Goldfish Embryo in Various Developmental Stages under Ultraviolet Treatment

作　　者：张凤秋[1] 杨战国[1] 

机构地区：[1]郑州大学离子束生物工程实验室,河南省郑州市450052

出　　处：《曲阜师范大学学报（自然科学版）》2005年第1期88-90,共3页Journal of Qufu Normal University(Natural Science)

摘　　要：采用紫外线 (UV)来处理 4～ 8细胞期、多细胞期、原肠期和心脏搏动期四个时期的金鱼幼胚 ,研究紫外线对金鱼幼胚发育的影响 .结果发现 :⑴对多细胞期以前的金鱼幼胚进行UV辐射 ,整体上可以提高孵化率 .且低剂量时对金鱼幼胚并无明显伤害 ,但如果剂量过高 ,便会出现大量畸形鱼 ,成活率明显下降 .⑵对原肠期以后的幼胚进行照射 ,随着剂量的增加 ,致畸率急剧上升 ,同时孵化率和鱼苗的成活率都迅速下降 .这说明紫外线对此时的幼胚主要表现的是损伤作用 .The ultraviolet radiation is used in the experiment to treat goldfish embryo in different stages: 4～8 cell stage, cellulous stage, gastrula stage and heart beating stage. The results show: (1) the hatching rate rises generally when the goldfish embryos are radiated by ultraviolet before the cellulous stage. There are two peak values in the hatching curve: at 15″ and 5′ respectively. (2) If the goldfish embryos are radiated by ultraviolet after the gastrula stage, the abnormality rate rises while the radiant dosage of ultraviolet increases, but the hatching rate and the survival rate decrease rapidly. The ultraviolet treatment with goldfish embryo in different developmental stages can produce two distinct effects, stimulating or injuring.

关 键 词：紫外线(UV) 金鱼幼胚 剂量 

分 类 号：Q274[生物学—细胞生物学]