中国水产科学Issue(5)：958-967,10.DOI:10.3724/SP.J.1118.2013.00958
达氏鲟视网膜早期发育及其相关机能
Retina development and correlated function during Dabry’s sturgeon (Acipenser dabryanus) ontogeny
摘要
Abstract
We studied the retina structure, visual characteristics, and correlated function of Dabry’s sturgeon (Acipenser dabryanus) ranging from newly hatched larvae to 64-day-old juveniles using paraffin serial sections. The main results are as follows: Larvae exhibited undifferentiated retina at hatching. Single cones appeared after 36 hours and rods appeared after 6 days. After 7 days, the visual system had completely differentiated. The ap-parent retinomotor responses first occurred on day 13. However, the minimum separable angle (α) decreased from 13.26′on day 8 to 3.37′on day 64. During the developmental period, the density of single cones and ganglion cells decreased while that of the rods correspondingly increased. The ratio of nuclei of the outer nuclear layer to gan-glion cells per 100μm increased, as did the ratio of nuclei of the outer nuclear layer to single cones. Our investi-gation revealed that the retina structure and visual characteristics changed rapidly from day 6 to 12 to adapt to ecological shifts and changes in photo taxis and feeding behavior.关键词
达氏鲟/视网膜/早期发育/相关机能Key words
Acipenser dabryanus/retina/ontogeny development/correlated function分类
生物科学引用本文复制引用
史玲玲,危起伟,柴毅,杜浩,李罗新,谢晓..达氏鲟视网膜早期发育及其相关机能[J].中国水产科学,2013,(5):958-967,10.基金项目
农业部公益性行业科研专项经费资助项目(200903048-02) （200903048-02）
