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| 背瘤丽蚌胚胎发育的初步研究 | |
| 引用本文： | 张根芳,许式见,方爱萍.背瘤丽蚌胚胎发育的初步研究[J].动物学杂志,2009,44(4):96-101. |
| 作者姓名： | 张根芳 许式见 方爱萍 |
| 作者单位： | 1. 金华职业技术学院生物工程学院,金华,321007;金华市九色珍珠研究所,金华,321017 2. 金华市九色珍珠研究所,金华,321017 3. 金华市威旺养殖新技术有限公司,金华,321017 |
| 基金项目： | 金华市技术创新项目(2005-1-206) |
| 摘 要： | 用显微技术研究了背瘤丽蚌(Lamprotula leai)胚胎发育和钩介幼虫结构。结果表明,背瘤丽蚌卵为均黄卵,受精卵分布在雌蚌内、外鳃腔中进行胚胎发育;胚胎发育同步;胚胎发育过程包括受精卵、卵裂期、囊胚期、原肠期、膜内钩介幼虫期和钩介幼虫期;卵裂为螺旋不等完全卵裂;未受精的成熟卵在鳃腔内退化;胚胎发育期与胚胎、外鳃和内鳃颜色相关;怀卵母蚌胚胎在外界环境变化时容易全部流产。分析认为背瘤丽蚌胚胎发育期的繁殖特征可指导人工苗种生产。 |
| 关 键 词： | 背瘤丽蚌 胚胎发育 钩介幼虫 |
| 收稿时间： | 2008/12/22 0:00:00 |
| 修稿时间： | 5/5/2009 12:00:00 AM |
Preliminary Study on the Embryonic Development of Lamprotula leai |
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| ZHANG Gen-Fang,XU Shi-Jian and FANG Ai-Ping.Preliminary Study on the Embryonic Development of Lamprotula leai[J].Chinese Journal of Zoology,2009,44(4):96-101. | |
| Authors: | ZHANG Gen-Fang XU Shi-Jian and FANG Ai-Ping |
| Institution: | ZHANG Gen-Fang XU Shi-Jian FANG Ai-Ping( Department of Animal Engineering,Jinhua College of Profession , Technology,Jinhua 321007, Jinhua Jewel Pearl Institute,Jinhua 321017, Jinhua Wellwant New Aquaculture Technology Co.Ltd.,China) |
| Abstract: | The characteristics of embryonic development and glochidia structure were observed in Lamprotula leai by means of light microscopy.The results showed that the isolecithal fertilized eggs developed synchronizedly in the inner and outer gill of the female.The embryonic development of L.leai could be divided into 6 stages:oosperm,cleavage,blastocyst,gastrulae,glochidia in membrane and glochidia.The cleavage was holoblastic and spiral.The unfertilized egg degenerated in the gill.There were relations between dif... |
| Keywords: | Lamprotula leai Embryonic development Glochidia |
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