【摘要】 建立了由发根农杆菌（Ａｇｒｏｂａｃｔｅｒｉｕｍｒｈｉｚｏｇｅｎｅｓ）感染膜荚黄芪（Ａｓｔｒａｇａｌｕｓｍｅｍｂｒａｎａｃｅｕｓ（Ｆｉｓｃｈ．）Ｂｇｅ．）叶片外植体形成的毛状根培养系统并研究了外界因子对其生长的影响。ＭＳ基本培养基（无激素）适合于黄芪毛状根的生长，但是由于ＮＨ４ＮＯ３具有抑制作用而被省略。３％的蔗糖和培养基ｐＨ６适宜毛状根生长。光抑制毛状根生长。每天１２ｈ的１５℃处理对黄芪毛状根生长的影响不明显。与黄芪药用根生物活性成分比较表明，毛状根组织含有较多的粗皂甙和可溶性多糖。讨论了毛状根培养技术在中药材生产中的应用和潜力。更多还原

【Abstract】 Hairy root cultures were established from the leaf explant of Astragalus membranaceus (Fisch.) Bge. infected with Agrobacterium rhizogenes and factors that affect their growth were investigated. It was found that the hairy roots grew best in a phytohormonefree MS medium at pH 6,in which the most optimal concentration of sucrose was 3% and NH4NO3 was omitted because of its inhibitory effect to the hairy roots. Light was also inhibitory to them but the effect of low temperature was not apparent. Moreover, there were more crude saponin and soluble polysuccharide contents in the hairy roots than in the natural dry roots. Finally, a discussion on the application and the potential of the hairy root technique in the production of the plant roots as an effection Chinese traditional medicine was also involved.更多还原