[Objectives]This study aimed to study the tissue culture technique of Betula microphylla Bunge var. paludosa. [Methods]Taking seeds as explant,seedlings of B. microphylla were cultured. Then,stem sections with leaves ...[Objectives]This study aimed to study the tissue culture technique of Betula microphylla Bunge var. paludosa. [Methods]Taking seeds as explant,seedlings of B. microphylla were cultured. Then,stem sections with leaves were cut off and subjected to induction of clustered shoots. Finally,the rooting and transplanting of adventitious shoots were completed. Thus,the tissue culture system of B. microphylla was established. [Results]The natural seed germination induction medium was Murashige and Skoog( MS),and the germination rate was31%. The most suitable shoot induction medium was WPM medium added with 1. 0 mg/L of 6-benzylaminopurine( BA),and the multiplication coefficient was 13. 7. The rooting medium was Woody Plant medium( WPM) added with 1. 0 mg/L of indole-3-butytric acid( IBA),and the rooting rate was 100%. The transplanting substrate for tissue-cultured seedlings was composed of humus soil,vermiculite and perlite( V∶ V∶ V =4∶3∶3),and the survival rate reached 88. 75%. [Conclusions]The experimental materials are easy to obtain and preserve,and the proliferation is rapid. This study provides technical support for the rapid acquisition of the tissue-cultured seedlings of B. microphylla.展开更多
目的：研究多枝雾水葛[Pouzolzia zeylanica（L.）Benn. var. microphylla（Wedd.） W.T.Wang]的化学成分。方法采用多种柱层析方法进行分离纯化,通过理化性质和波谱解析进行化学结构鉴定。结果从多枝雾水葛的乙酸乙酯部位和正丁醇部位...目的：研究多枝雾水葛[Pouzolzia zeylanica（L.）Benn. var. microphylla（Wedd.） W.T.Wang]的化学成分。方法采用多种柱层析方法进行分离纯化,通过理化性质和波谱解析进行化学结构鉴定。结果从多枝雾水葛的乙酸乙酯部位和正丁醇部位分离得到9个化合物,分别鉴定为槲皮素-3-O-[α-L-鼠李糖（1→6）-β-D-葡萄糖]-7-O-α-L-鼠李糖苷（1）、山柰酚-7-O-α-L-吡喃鼠李糖苷（2）、（6R,9R）-1-酮-α-紫罗兰醇-9-O-β-D-吡喃葡萄糖（3）、蚱蜢酮（4）、苄基-O-β-D-吡喃葡萄糖苷（5）、3,4,5-三甲氧基苯-1-O-β-D-吡喃葡萄糖苷（6）、邻苯二甲酸二辛酯（7）、山柰酚（8）、芹菜素（9）。结论化合物1、3~6、8~9首次从该属植物中分离得到。展开更多
基金Youth Found Project of Longjiang Forest Industry(sgzjQ 2015002)Science and Technology Bureau of Mudanjiang City(Z2016n0019)
文摘[Objectives]This study aimed to study the tissue culture technique of Betula microphylla Bunge var. paludosa. [Methods]Taking seeds as explant,seedlings of B. microphylla were cultured. Then,stem sections with leaves were cut off and subjected to induction of clustered shoots. Finally,the rooting and transplanting of adventitious shoots were completed. Thus,the tissue culture system of B. microphylla was established. [Results]The natural seed germination induction medium was Murashige and Skoog( MS),and the germination rate was31%. The most suitable shoot induction medium was WPM medium added with 1. 0 mg/L of 6-benzylaminopurine( BA),and the multiplication coefficient was 13. 7. The rooting medium was Woody Plant medium( WPM) added with 1. 0 mg/L of indole-3-butytric acid( IBA),and the rooting rate was 100%. The transplanting substrate for tissue-cultured seedlings was composed of humus soil,vermiculite and perlite( V∶ V∶ V =4∶3∶3),and the survival rate reached 88. 75%. [Conclusions]The experimental materials are easy to obtain and preserve,and the proliferation is rapid. This study provides technical support for the rapid acquisition of the tissue-cultured seedlings of B. microphylla.
文摘目的：研究多枝雾水葛[Pouzolzia zeylanica（L.）Benn. var. microphylla（Wedd.） W.T.Wang]的化学成分。方法采用多种柱层析方法进行分离纯化,通过理化性质和波谱解析进行化学结构鉴定。结果从多枝雾水葛的乙酸乙酯部位和正丁醇部位分离得到9个化合物,分别鉴定为槲皮素-3-O-[α-L-鼠李糖（1→6）-β-D-葡萄糖]-7-O-α-L-鼠李糖苷（1）、山柰酚-7-O-α-L-吡喃鼠李糖苷（2）、（6R,9R）-1-酮-α-紫罗兰醇-9-O-β-D-吡喃葡萄糖（3）、蚱蜢酮（4）、苄基-O-β-D-吡喃葡萄糖苷（5）、3,4,5-三甲氧基苯-1-O-β-D-吡喃葡萄糖苷（6）、邻苯二甲酸二辛酯（7）、山柰酚（8）、芹菜素（9）。结论化合物1、3~6、8~9首次从该属植物中分离得到。
