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人参寡糖素对三七悬浮培养细胞生长的效应
甘烦远; 郑光植;
中国科学院昆明植物研究所
摘要:
从人参培养细胞的细胞壁中分离纯化到不同分子量的单体人参寡糖素。试验结果表明命名为人参寡糖素Ⅶ和人参寡糖素Ⅷ的两种寡糖素对三七悬浮培养细胞的生长具有明显的促进作用,其增长率分别为19.34%和10.58%,人参寡糖素Ⅶ的适宜浓度为5—10mg/l。在高浓度下(大于25mg/l)稍抑制培养细胞生长。在细胞培养22天(指数生长期)后.加入10mg/l的人参寡糖素Ⅶ.然后再培养2天。其生长速率即提高,加入人参寡糖素Ⅷ后.缩短了三七细胞悬浮培养生长的延缓期.提前进入对数生长期和指数生长期,并在对数生长期和指数生长期作用最明显,因而最终收获时培养细胞的产率增加。
关键词:  人参寡糖素  三七  细胞悬浮培养  生长速率  细胞产率  
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