礁膜原生质体的分离及培养

被引:4
作者
谢恩义
马家海
机构
[1] 上海水产大学生命科学与技术学院
[2] 上海水产大学生命科学与技术学院 上海
[3] 上海
关键词
礁膜; 原生质体; 酶解; 分离; 培养;
D O I
暂无
中图分类号
Q943 [植物细胞遗传学];
学科分类号
071007 ; 090102 ;
摘要
为了开发礁膜人工育苗的新技术,以4%果胶酶和2%纤维素酶的甘露醇溶液,分离酶解经无菌处理的礁膜叶状体,在40mmol·L-1CaCl2,0.7mol·L-1甘露醇,pH5.5,温度28℃,摇床速度50r·min-1旋转振荡3h的条件下,1.0g湿重礁膜可获原生质体约2×10~6个。原生质体分离后依次用比重为1.030、1.026、1.022的消毒海水(添加N、P、Fe2+、IAA、KB、Vit C)培养,2d后已形成明显的再生细胞壁,3~4d后细胞开始分裂,8d后形成由4~8个细胞组成的细胞团,以后原生质有不同的发育形态,较常见的是形成由一共同胶质膜包被的类似亲本的叶状体组织块,另一种是原生质体形成孢子囊,成熟后,可产生许多游动孢子,再由游动孢子发育成正常形态的膜状配子体,第三种发育形态为偏离亲本正常形态的管状体。
引用
收藏
页码:62 / 67
页数:6
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