[Objectives]This study was conducted to identify the microscopic characteristics of Chenopodium album L.[Methods]The microscopic identification method was adopted.[Results]The xylem vessels and fiber bundles of the ro...[Objectives]This study was conducted to identify the microscopic characteristics of Chenopodium album L.[Methods]The microscopic identification method was adopted.[Results]The xylem vessels and fiber bundles of the roots are arranged into 3-4 intermittent ring belts in a concave-convex pattern,alternately with the parenchymal cell ring belts;and the xylem rays vary in width.The cross section of the stems is polygonal;there are parenchyma cells at the corners of the cortex;there are many vascular bundles of varying sizes;and calcium oxalate clusters are common in the medulla and cortex.There are 2 to 4 vascular bundles in the main leaf vein,peltate;and fiber bundles exist below the phloem.The powder is characterized by numerous clusters of calcium oxalate,which are uniform in size,sharp at edges and corners.[Conclusions]This study can provide reference for the identification and quality standard of the crude drug.展开更多
应用正、反相硅胶和葡聚糖凝胶柱色谱等技术对藜(Chenopodium album L.)的黄酮类化学成分进行了分离和纯化.从藜中分离得到2种黄酮类化合物,分别为异鼠李素3-O-芸香糖苷(1)、槲皮素3-O-β-D-呋喃芹糖(1→2)-O-[α-L-鼠李糖(1→6)]-β-D...应用正、反相硅胶和葡聚糖凝胶柱色谱等技术对藜(Chenopodium album L.)的黄酮类化学成分进行了分离和纯化.从藜中分离得到2种黄酮类化合物,分别为异鼠李素3-O-芸香糖苷(1)、槲皮素3-O-β-D-呋喃芹糖(1→2)-O-[α-L-鼠李糖(1→6)]-β-D-葡萄糖苷(2).采用纸片扩散法进行了抑菌试验.结果表明,黎的95%(体积分数)乙醇提取液对大肠埃希菌有明显的抑菌效果,最低抑菌浓度(MIC)为32mg/L.展开更多
[Objective] The purpose was to discuss drought resistance mechanism of Chenopodium album L.and supply theoretical basis and practical guidance for artificial cultivation and popularization of C.album.[Method] C.album ...[Objective] The purpose was to discuss drought resistance mechanism of Chenopodium album L.and supply theoretical basis and practical guidance for artificial cultivation and popularization of C.album.[Method] C.album seedlings grown to 6th leaf stage were conducted osmotic stress treatment with PEG6000 osmotic whose concentration was set up as 0,5%,10% and 20% and the various physiological indices of the 3rd-5th function leaves in upper plant were determined after being treated for 0,1,3,5,7 and 9 d.[Result] Under osmotic stress with 5% PGE,the relative water content(RWC)of C.album reduced less.Under osmotic stress with 10%,the RWC in seedling leaves of C.album decreased to 62% on the fifth day and the leaves began to wither.Under osmotic stress with 20%,the RWC in seedling leaves of C.album decreased to 61.9% on the third day and the leaves appeared withering,and the RWC decreased to 48.6% on the 7th day and the leaves were dry and yellow.Proline contents in seedling leaves of C.album under osmotic stress with 5%,10% and 20% PEG were 7.64,10.9 and 29.4 times of CK on the 7th day.[Conclusion] C.album had some adaptability to moderate osmotic stress,but the PEG osmotic stress with high concentration and long time might lead to severe damage on C.album.展开更多
采用正、反相硅胶和葡聚糖凝胶柱色谱技术对藜(Chenopodium album L.)的黄酮类化学成分进行分离和纯化,得到4个黄酮类化合物,分别为槲皮素3-O-芸香糖苷(1)、芹菜素6,8-二-C-β-D-葡萄糖苷(2)、槲皮素3-O-[α-L-鼠李糖(1→4)-α-L-鼠李...采用正、反相硅胶和葡聚糖凝胶柱色谱技术对藜(Chenopodium album L.)的黄酮类化学成分进行分离和纯化,得到4个黄酮类化合物,分别为槲皮素3-O-芸香糖苷(1)、芹菜素6,8-二-C-β-D-葡萄糖苷(2)、槲皮素3-O-[α-L-鼠李糖(1→4)-α-L-鼠李糖(1→6)-β-D-葡萄糖](3)、异鼠李素3-O-[α-L-鼠李糖(1→4)-α-L-鼠李糖(1→6)-β-D-葡萄糖](4).其中化合物2、3、4为首次从该属植物中分离得到.展开更多
基金Supported by General Project of Guangxi Science and Technology Department(2020GXNSFAA259043)Yao Medicine Quality Standard Project(MZY2017001)+1 种基金First-class Discipline in Guangxi of Traditional Chinese Pharmacology(GJKY[2018]12)Fund of Guangxi University of Chinese Medicine(05018028F2)。
文摘[Objectives]This study was conducted to identify the microscopic characteristics of Chenopodium album L.[Methods]The microscopic identification method was adopted.[Results]The xylem vessels and fiber bundles of the roots are arranged into 3-4 intermittent ring belts in a concave-convex pattern,alternately with the parenchymal cell ring belts;and the xylem rays vary in width.The cross section of the stems is polygonal;there are parenchyma cells at the corners of the cortex;there are many vascular bundles of varying sizes;and calcium oxalate clusters are common in the medulla and cortex.There are 2 to 4 vascular bundles in the main leaf vein,peltate;and fiber bundles exist below the phloem.The powder is characterized by numerous clusters of calcium oxalate,which are uniform in size,sharp at edges and corners.[Conclusions]This study can provide reference for the identification and quality standard of the crude drug.
文摘应用正、反相硅胶和葡聚糖凝胶柱色谱等技术对藜(Chenopodium album L.)的黄酮类化学成分进行了分离和纯化.从藜中分离得到2种黄酮类化合物,分别为异鼠李素3-O-芸香糖苷(1)、槲皮素3-O-β-D-呋喃芹糖(1→2)-O-[α-L-鼠李糖(1→6)]-β-D-葡萄糖苷(2).采用纸片扩散法进行了抑菌试验.结果表明,黎的95%(体积分数)乙醇提取液对大肠埃希菌有明显的抑菌效果,最低抑菌浓度(MIC)为32mg/L.
基金Supported by the Natural Science Foundation of Education Department of Jiangsu Province(02KJD18007)the Key Laboratory Program of Bio-re-sources of Jiangsu Province(KJS03042)the Key Program of Natural Science Foundation of Xuzhou Normal University(06XLA11)~~
文摘[Objective] The purpose was to discuss drought resistance mechanism of Chenopodium album L.and supply theoretical basis and practical guidance for artificial cultivation and popularization of C.album.[Method] C.album seedlings grown to 6th leaf stage were conducted osmotic stress treatment with PEG6000 osmotic whose concentration was set up as 0,5%,10% and 20% and the various physiological indices of the 3rd-5th function leaves in upper plant were determined after being treated for 0,1,3,5,7 and 9 d.[Result] Under osmotic stress with 5% PGE,the relative water content(RWC)of C.album reduced less.Under osmotic stress with 10%,the RWC in seedling leaves of C.album decreased to 62% on the fifth day and the leaves began to wither.Under osmotic stress with 20%,the RWC in seedling leaves of C.album decreased to 61.9% on the third day and the leaves appeared withering,and the RWC decreased to 48.6% on the 7th day and the leaves were dry and yellow.Proline contents in seedling leaves of C.album under osmotic stress with 5%,10% and 20% PEG were 7.64,10.9 and 29.4 times of CK on the 7th day.[Conclusion] C.album had some adaptability to moderate osmotic stress,but the PEG osmotic stress with high concentration and long time might lead to severe damage on C.album.
文摘采用正、反相硅胶和葡聚糖凝胶柱色谱技术对藜(Chenopodium album L.)的黄酮类化学成分进行分离和纯化,得到4个黄酮类化合物,分别为槲皮素3-O-芸香糖苷(1)、芹菜素6,8-二-C-β-D-葡萄糖苷(2)、槲皮素3-O-[α-L-鼠李糖(1→4)-α-L-鼠李糖(1→6)-β-D-葡萄糖](3)、异鼠李素3-O-[α-L-鼠李糖(1→4)-α-L-鼠李糖(1→6)-β-D-葡萄糖](4).其中化合物2、3、4为首次从该属植物中分离得到.
