| 大鳞副泥鳅卵巢发育的组织学研究 |
| Histological Studies on the Ovarian Development of Paramisgurnus dabryanus |
| 投稿时间：2007-05-03 |
| DOI： |
| 中文关键词:大鳞副泥鳅 卵巢 组织学 |
| 英文关键词:Paramisgurnus dabryanus ovary histology |
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| 中文摘要: |
| 采用组织切片方法，对大鳞副泥鳅的卵巢发育进行了组织学研究，系统地描述了卵巢的形态结构、组织学特征。２个卵巢左右成对，位于体腔中线两侧和消化管的背面，以肠系膜与体壁相连。大鳞副泥鳅卵巢的发育分为Ⅵ个时期，第Ⅱ期卵巢出现产卵板，卵母细胞明显增多，原生质增长，胞质嗜碱性增强，早期排列紧密，后期排列疏松；第ＩＩＩ期卵巢体积显著增大，扁圆，浅黄色，卵黄颗粒出现在皮质Ｍ，单层滤泡层形成，放射带出现；第ＩＶ期卵巢体积更加增大，圆筒形，深黄色，能见许多血管分枝；第Ｖ期卵巢一般只在繁殖季节达到性成熟的可自然排卵产出体外的雌鳅体内出现；第ＶＩ期卵巢呈现排空的滤泡。卵母细胞的发育分为５个时相，在第２时相晚期到第３时相早期，卵母细胞中具有卵黄核。
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| 英文摘要: |
| The ovarian development of Paramisgurnus dabryanus Sauvage was studied using light-microscopy to describe characters of the ovary at different stages. The results showed that a pair of ovaries connected body wall with mesentery besides coelom midline, and in dorsal view of digestive tract. According to the morphological and histo- logical features, the development of ovary can be derided into six stages and the change of the oocytes of the female can be derided into five phases. The overy in the stage Ⅱ had ovipositor, oocyte increased evidently with tight arrangement in early and loose arrangement in later, protoplasm increased, and cytoplast of alkalescence boosted up. The Ovary in the stage Ⅲ was oblate, colour was buff, volume increased evidently, yolk appeared in the cortex M, monolayer follicle membrane was formed and zona radiate had appeared. The Ovary in the stage Ⅳ was columnar with yellow colour ,the volume was much more increascd, and many ramification of blood vessel was showed. The Ovary in the stage Ⅴ just displayed in the wild Paramisgurnus dabryanus. Ovary in the stage Ⅵ showed discharging follicles. The development of oocytes from the later Phase Ⅱ to the early Phase Ⅲ had yolk nucleus. |
| 杨帆.2009.大鳞副泥鳅卵巢发育的组织学研究[J].水生态学杂志,30(1):78-81. |
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