| 一秋龄性成熟中华绒螫蟹的生物学──1.外部形态特征及性腺变化 |
| |
| 引用本文： | 金刚,李钟杰.一秋龄性成熟中华绒螫蟹的生物学──1.外部形态特征及性腺变化[J].湖泊科学,1999,11(1):52-56. |
| |
| 作者姓名： | 金刚 李钟杰 |
| |
| 作者单位： | 中国科学院水生生物研究所, 武汉 430072,中国科学院水生生物研究所, 武汉 430072 |
| |
| 基金项目： | 中国科学院水生生物研究所所长择优基金, 950402;农业部“八五”攻关课题, 85－14－01－01 |
| |
| 摘 要： | 极大螺旋藻藻体ＳＯＤ聚丙烯酰胺梯度凝胶电泳呈现４条同工酶带，Ｈ２Ｏ２明显抑制该酶活性，ＫＣＮ对酶活性无影响，确认为Ｆｅ－ＳＯＤ。经硫酸铵分部盐析，离子交换柱层析及凝胶过滤，纯化到电泳单斑点均一程度。纯化的Ｆｅ－ＳＯＤ分子量为３９．３ＫＤ，亚基分子量为２０ＫＤ，金属元素分析表明，每个亚基含０．５５个Ｆｅ原子。该酶在紫外区最大吸收峰值为２７５．８ｎｍ，该酶氨基酸组成与蓝，绿藻和高等植物的Ｆｅ－ＳＯＤ相
|
| 关 键 词： | 极大螺旋藻 铁型 超氧化物歧化酶 纯化 螺旋藻 |
| 收稿时间： | 1997/4/12 0:00:00 |
| 修稿时间： | 1997/8/11 0:00:00 |
Biology of Mature 0+ Crabs, Eriocheir sinensis(I):Body Characteristics and Changes of Sexual Gland |
| |
| JIN Gang and LI Zhong-jie.Biology of Mature 0+ Crabs, Eriocheir sinensis(I):Body Characteristics and Changes of Sexual Gland[J].Journal of Lake Science,1999,11(1):52-56. |
| |
| Authors: | JIN Gang and LI Zhong-jie |
| |
| Institution: | Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072 and Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072 |
| |
| Abstract: | This paper describes the characteristics of mature 0+ crabs, Eriocheir sinensis, and its regression relationship between body weight (BW) and carapace width (CW).For the 0+ female crabs, when BW>29.8g(CW>4.03cm), the sexual gland is mature;when BW< 13.lg (CW <3.00cm), the sexual gland is immature.When BW ranges 13.1 -29.8g, some crabss are ma-true, some crab are immature.For the 0+ male crabs, when BW >26.Og (CW >3.91cm), all the crabs are mature;when BW< 12.0g (CW<2.66cm), immature.The sexual gland degrades from then on.In the first ten-day period of next July, the ovary looks like the slender thread and there is no complete ovum. |
| |
| Keywords: | Eriocheir sinensis matrue 0+ crabs gonosomatic index body chacrateristics |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《湖泊科学》浏览原始摘要信息 |
| 点击此处可从《湖泊科学》下载免费的PDF全文 |
|
