[Objective] The aim was to investigate the genetic diversity and analyze the genetic differentiation of germplasm resources of Gentiana officinalis H.Smith from Qinghai.[Method] The cpDNA of chloroplast psbA-trnH gene...[Objective] The aim was to investigate the genetic diversity and analyze the genetic differentiation of germplasm resources of Gentiana officinalis H.Smith from Qinghai.[Method] The cpDNA of chloroplast psbA-trnH gene was sequenced to analyze the genetic diversity of six populations of G.officinalis.[Result] A total of 10 distinct haplotypes were detected in the studied populations,and seven variable sites were found by comparing their sequences.G.officinalis with high-level genetic diversity（h=0.771）.Genetic diversity was largely varied within populations,ranging from 0.563 to 0.857 for haplotype diversity,and from 0.002 43 to 0.005 83 for nucleotide diversity,respectively.Genetic differentiation among populations（Gst） of G.officinalis was 0.196 0;gene flow（Nm） was 2.05;80.40% of the genetic variability occurred within population.[Conclusion] The cultivated G.officinalis in Qinghai showed rich genetic diversity,which is beneficial for the production of high-quality herb medicine.展开更多
为研究肺形草的化学成分,采用硅胶柱色谱、葡聚糖凝胶Sephadex LH-20、反相高效液相制备色谱对该植物的乙酸乙酯层进行分离纯化,通过1 H NMR和13 C NMR波谱技术进行结构鉴定.结果表明:从乙酸乙酯层中分离得到了8个化合物,分别鉴定为2′-...为研究肺形草的化学成分,采用硅胶柱色谱、葡聚糖凝胶Sephadex LH-20、反相高效液相制备色谱对该植物的乙酸乙酯层进行分离纯化,通过1 H NMR和13 C NMR波谱技术进行结构鉴定.结果表明:从乙酸乙酯层中分离得到了8个化合物,分别鉴定为2′-acetamido-3′-phenylpropyl 2-benzamido-3-phenyl propionate(1)、1,3,5-三羟基口山酮(2)、3-羟基-4-甲氧基苯甲酸甲酯(3)、咖啡酸乙酯(4)、邻苯二甲酸二丁酯(5)、1,7-二羟基-3,8-二甲氧基口山酮(6)、morroniside(7)、1,3,7-三羟基-4-C-β-D-葡萄糖基呫吨酮(8).其中化合物1~5为首次从该植物中分离得到.展开更多
目的:建立抱茎獐牙菜指纹图谱及多指标成分含量测定方法,为其质量控制及评价提供参考。方法:采用Waters Sun Fir ODS C_(18)色谱柱,甲醇-0.05%磷酸溶液为流动相梯度洗脱,体积流量为1.0 m L·min^(-1),检测波长为254 nm,柱温为30℃;...目的:建立抱茎獐牙菜指纹图谱及多指标成分含量测定方法,为其质量控制及评价提供参考。方法:采用Waters Sun Fir ODS C_(18)色谱柱,甲醇-0.05%磷酸溶液为流动相梯度洗脱,体积流量为1.0 m L·min^(-1),检测波长为254 nm,柱温为30℃;建立高效液相色谱(HPLC)图谱,采用Chempattern化学计量学软件进行相似度分析。进一步通过HPLC法,测定样品中10个指标成分的含量,以寻找样品间的质量差异成分。结果:建立了抱茎獐牙菜HPLC指纹图谱,相似度均>0.904,并确认29个共有峰,指认出马钱苷酸、獐牙菜苦苷、龙胆苦苷、当药苷、芒果苷、异荭草素、苦龙胆酯苷、当药醇苷、1,8-二羟基-3,7-二甲氧基[口山]酮、雏菊叶龙胆酮10个色谱峰。含量测定显示,10个成分线性关系良好(r≥0.9993),加样回收率均在96.8%~99.3%,RSD<2.1%,平均含量分别为0.16%、3.63%、0.23%、0.38%、0.24%、0.26%、0.07%、1.13%、0.08%、0.25%。测定结果表明獐牙菜苦苷、当药醇苷等成分含量较高。结论:HPLC指纹图谱结合多指标成分含量测定方法适用于抱茎獐牙菜的质量控制与评价,该方法快捷简便、稳定可靠,可为建立藏药抱茎獐牙菜质量标准提供依据。展开更多
基金Supported by Science Foundation for the Excellent Youth and Middle-aged Scholars in Qinghai University(2009-QY-19)~~
文摘[Objective] The aim was to investigate the genetic diversity and analyze the genetic differentiation of germplasm resources of Gentiana officinalis H.Smith from Qinghai.[Method] The cpDNA of chloroplast psbA-trnH gene was sequenced to analyze the genetic diversity of six populations of G.officinalis.[Result] A total of 10 distinct haplotypes were detected in the studied populations,and seven variable sites were found by comparing their sequences.G.officinalis with high-level genetic diversity（h=0.771）.Genetic diversity was largely varied within populations,ranging from 0.563 to 0.857 for haplotype diversity,and from 0.002 43 to 0.005 83 for nucleotide diversity,respectively.Genetic differentiation among populations（Gst） of G.officinalis was 0.196 0;gene flow（Nm） was 2.05;80.40% of the genetic variability occurred within population.[Conclusion] The cultivated G.officinalis in Qinghai showed rich genetic diversity,which is beneficial for the production of high-quality herb medicine.
文摘为研究肺形草的化学成分,采用硅胶柱色谱、葡聚糖凝胶Sephadex LH-20、反相高效液相制备色谱对该植物的乙酸乙酯层进行分离纯化,通过1 H NMR和13 C NMR波谱技术进行结构鉴定.结果表明:从乙酸乙酯层中分离得到了8个化合物,分别鉴定为2′-acetamido-3′-phenylpropyl 2-benzamido-3-phenyl propionate(1)、1,3,5-三羟基口山酮(2)、3-羟基-4-甲氧基苯甲酸甲酯(3)、咖啡酸乙酯(4)、邻苯二甲酸二丁酯(5)、1,7-二羟基-3,8-二甲氧基口山酮(6)、morroniside(7)、1,3,7-三羟基-4-C-β-D-葡萄糖基呫吨酮(8).其中化合物1~5为首次从该植物中分离得到.
文摘目的:建立抱茎獐牙菜指纹图谱及多指标成分含量测定方法,为其质量控制及评价提供参考。方法:采用Waters Sun Fir ODS C_(18)色谱柱,甲醇-0.05%磷酸溶液为流动相梯度洗脱,体积流量为1.0 m L·min^(-1),检测波长为254 nm,柱温为30℃;建立高效液相色谱(HPLC)图谱,采用Chempattern化学计量学软件进行相似度分析。进一步通过HPLC法,测定样品中10个指标成分的含量,以寻找样品间的质量差异成分。结果:建立了抱茎獐牙菜HPLC指纹图谱,相似度均>0.904,并确认29个共有峰,指认出马钱苷酸、獐牙菜苦苷、龙胆苦苷、当药苷、芒果苷、异荭草素、苦龙胆酯苷、当药醇苷、1,8-二羟基-3,7-二甲氧基[口山]酮、雏菊叶龙胆酮10个色谱峰。含量测定显示,10个成分线性关系良好(r≥0.9993),加样回收率均在96.8%~99.3%,RSD<2.1%,平均含量分别为0.16%、3.63%、0.23%、0.38%、0.24%、0.26%、0.07%、1.13%、0.08%、0.25%。测定结果表明獐牙菜苦苷、当药醇苷等成分含量较高。结论:HPLC指纹图谱结合多指标成分含量测定方法适用于抱茎獐牙菜的质量控制与评价,该方法快捷简便、稳定可靠,可为建立藏药抱茎獐牙菜质量标准提供依据。
