目的:研究南川木波罗枝条的化学成分。方法:采用硅胶、Diaion HP20大孔吸附树脂、MCI gel CHP 20P树脂凝胶、Sephadex LH-20凝胶、ODS等柱色谱分离手段,对南川木波罗枝条的95%乙醇提取物进行化学成分的分离纯化,根据化合物的理化性质及...目的:研究南川木波罗枝条的化学成分。方法:采用硅胶、Diaion HP20大孔吸附树脂、MCI gel CHP 20P树脂凝胶、Sephadex LH-20凝胶、ODS等柱色谱分离手段,对南川木波罗枝条的95%乙醇提取物进行化学成分的分离纯化,根据化合物的理化性质及光谱数据鉴定其结构。结果:分离了10个化合物,分别鉴定为diosgenin(1),prosapogenin of dioscin(2),progeninⅡ(3),薯蓣皂苷元-3-O-α-L-吡喃鼠李糖基(1→4)-α-L-吡喃鼠李糖基(1→3)-β-D-吡喃葡萄糖苷(4),7-oxositosterol acilglicosilado(5),咖啡酸乙酯(6),邻苯二甲酸二丁酯(7),松脂素(8),(7S,8S,8'R)-5,5'-二甲氧基落叶松树脂醇(9),棕榈酸(10)。结论:除化合物6,10外,其他化合物均为首次从桑科植物中分离得到。化合物4为首次以天然产物的形式从自然界获得。展开更多
[Objective] This study aimed to solve the problems of low seed germina- tion rate and difficult bareroot seedling transplanting in artificial cultivation of Arto- carpus nanchuanensis, a native species in China. [Meth...[Objective] This study aimed to solve the problems of low seed germina- tion rate and difficult bareroot seedling transplanting in artificial cultivation of Arto- carpus nanchuanensis, a native species in China. [Method] Under different seed treatment and seedling style, the seed germination rate and seedling emergence rate of A. nanchuanensis were investigated. [Result] tn both sand bed and direct sowing yellow soil, the seed germination rate, seedling survival rate and seedling emergence rate in the treatment II were all higher than those in the treatments I and III. The average seed germination rate, seedling survival rate and seedling emergence rate in sand beds were 1.5%, 16.27% and 13.95%, respectively higher than those in direct sowing yellow soil. The average seedling emergence rate in sand beds was 2.46% higher than that in containers. Among the 8 kinds of light matrix formulas, the growth of seedlings in the formula VIII was best. In the three treatment groups, the seedling emergence rates, seedling heights and ground diame- ters in the formula VIII were all significantly different from those in the other formu- las. The seedling growth in the formula I and III ranked second, while the seedling emergence rate, seedling height and ground diameter in the formula VII were the poorest. [Conclusion] If conditions allow, the formulas I （meadow soil：vermiculite：yel- low soi1=5：3：2）, III （meadow soil：perlite：yellow soi1=5：3：2） and VIII （peat：forest top soi1=6：4） should be promoted in seedling with light matrixes.展开更多
文摘目的:研究南川木波罗枝条的化学成分。方法:采用硅胶、Diaion HP20大孔吸附树脂、MCI gel CHP 20P树脂凝胶、Sephadex LH-20凝胶、ODS等柱色谱分离手段,对南川木波罗枝条的95%乙醇提取物进行化学成分的分离纯化,根据化合物的理化性质及光谱数据鉴定其结构。结果:分离了10个化合物,分别鉴定为diosgenin(1),prosapogenin of dioscin(2),progeninⅡ(3),薯蓣皂苷元-3-O-α-L-吡喃鼠李糖基(1→4)-α-L-吡喃鼠李糖基(1→3)-β-D-吡喃葡萄糖苷(4),7-oxositosterol acilglicosilado(5),咖啡酸乙酯(6),邻苯二甲酸二丁酯(7),松脂素(8),(7S,8S,8'R)-5,5'-二甲氧基落叶松树脂醇(9),棕榈酸(10)。结论:除化合物6,10外,其他化合物均为首次从桑科植物中分离得到。化合物4为首次以天然产物的形式从自然界获得。
基金Supported by Wildlife Conservation and Nature Reserve Construction Projects of Chongqing City in 2013~~
文摘[Objective] This study aimed to solve the problems of low seed germina- tion rate and difficult bareroot seedling transplanting in artificial cultivation of Arto- carpus nanchuanensis, a native species in China. [Method] Under different seed treatment and seedling style, the seed germination rate and seedling emergence rate of A. nanchuanensis were investigated. [Result] tn both sand bed and direct sowing yellow soil, the seed germination rate, seedling survival rate and seedling emergence rate in the treatment II were all higher than those in the treatments I and III. The average seed germination rate, seedling survival rate and seedling emergence rate in sand beds were 1.5%, 16.27% and 13.95%, respectively higher than those in direct sowing yellow soil. The average seedling emergence rate in sand beds was 2.46% higher than that in containers. Among the 8 kinds of light matrix formulas, the growth of seedlings in the formula VIII was best. In the three treatment groups, the seedling emergence rates, seedling heights and ground diame- ters in the formula VIII were all significantly different from those in the other formu- las. The seedling growth in the formula I and III ranked second, while the seedling emergence rate, seedling height and ground diameter in the formula VII were the poorest. [Conclusion] If conditions allow, the formulas I （meadow soil：vermiculite：yel- low soi1=5：3：2）, III （meadow soil：perlite：yellow soi1=5：3：2） and VIII （peat：forest top soi1=6：4） should be promoted in seedling with light matrixes.
