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雷公藤不定根培养体系的建立及中试放大研究

Keywords: 雷公藤,不定根诱导,中试放大,次生代谢产物

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Abstract:

以MS为基本培养基,进行雷公藤不定根的诱导研究时发现,不论是以雷公藤幼叶还是以幼叶诱导的愈伤组织为外植体,在添加1.0mg·L-1IBA的培养基上均可以诱导出不定根并建立良好的不定根培养体系;以雷公藤愈伤组织建立的悬浮细胞在添加2.0~4.0mg·L-1NAA时,也可以形成不定根并建立稳定的不定根培养体系,雷公藤不定根的3个培养体系中雷公藤甲素含量均超过自然生长的根皮中的含量,其中AR3不定根中雷公藤甲素含量最高,为根皮的5.3倍。在使用5L发酵罐进行中试放大培养时,与250mL摇瓶培养相比,每升培养基不定根增长量、次生代谢产物含量差异不大,这为通过组织培养生产雷公藤次生代谢产物奠定了基础。

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