基于均匀设计对黄精不定芽增殖培养的研究
2014-10-21周新华肖智勇王丽云陈传松钟文斌钟秋平
周新华 肖智勇 王丽云 陈传松 钟文斌 钟秋平
摘要 [目的]筛选出最适合离体多花黄精不定芽增殖的培养基配方。[方法]以多花黄精带芽根茎为外植体,在激素种类、水平数较多的情况下,采用了均匀设计及其分析方法筛选出最适合黄精不定芽增殖的培养基配方。[结果]最佳培养基配方为MS+KT 1.49 mg/L+NAA 0.29 mg/L+琼脂0.7%+蔗糖3%(pH=5.8),平均增殖系数高达7.09以上。[结论]研究结果为多花黄精规模化、工厂化育苗提供理论和技术支撑。
关键词 多花黄精;均匀设计;组织培养;芽增殖
中图分类号 S567 文献标识码
A 文章编号 0517-6611(2014)31-10909-03
Research on the Rhizome Bud in Vitro Culture Of Polygonatum cyrtonema Hua Based on the Uniform Design Model
ZHOU Xinhua1,XIAO Zhiyong2,WANG Liyun1,ZHONG Qiuping1* et al (1.Experimental Center for Subtropical Forestry, Chinese Academy of Forestry, Fenyi,Jiangxi 336600;2. Yichun City Forestry Research Institute, Yichun,Jiangxi 336000)
Abstract [Objective] The research aimed to select the optimal media formulations of the rhizome bud [Method]Taking the Polygonatum cyrtonema Hua with rhizome and buds as explants,the optimal media formulations of the adventitious bud propagation in the Vitro Culture of Polygonatum cyrtonema Hua was selected by the uniform design and analysis methods under the cases of many hormone kinds and levels.[Result]The results showed that MS + KT 1.49 mg/L+ NAA 0.29 mg/L+Agar 0.7%+Sugar3%(pH=5.8) wsa the best medium for the adventitious buds induction. The average buds number induced by a bud is 7.09. [Conclusion] The research results can provide the theoretical and technical support for the cyrtonema scale and industrialized breeding of Polygonatum cyrtonema Hua.
Key words Polygonatum cyrtonema Hua;Uniform design;Tissue culture;Bud propagation
黄精是以百合科黄精属多年生草本植物滇黄精(P.kingianum Coll.et Hemsl)、黄精(Polygonatum sibiricum Red.)或多花黄精(Polygonatum cyrtonema Hua)的干燥根茎入药,具有补中益气、除风湿、安五脏、久服轻身、延年、不饥、补诸虚、填精髓、平补气血而润的作用[1-3]。近代研究表明,黄精主要含有糖类、甾体皂苷、强心苷、生物碱、黄酮及蒽醌类化合物、木脂素、维生素、氨基酸及微量元素等化学成分[4-7],具有延年益寿、抗菌消炎、抵抗衰老、抗动脉硬化、抗疲劳、提高学习记忆力、调节免疫力、抑制肿瘤细胞等功效[8-10]。随着研究的深入,人们对黄精的药用价值和保健价值也给予了肯定和认可,黄精原料的市场需求量也越来越大,价格不断上扬,黄精的野生自然资源遭到山区农民的掠夺性采集,使得原本就很稀缺的野生黄精自然资源迅速枯竭,严重影响了黄精植物的可持续开发和利用。因此,为了保证高质量的黄精原料来源,全面推广和实行黄精的产业化种植显得尤为重要。……
