简介:γ-Aminobutyricacid(GABA)andseveralγ-glutamyloligopeptideswereisolatedandidentifiedfromwater-extractofginseng.
简介:一个直角的图案被用来作为模板优化SSR-PCR扩大系统usingPanax人参genomicDNA。五个因素(DNA模板,TaqDNApolymerase,Mg~(2+),教材,和dNTP)和退火的温度的四个层次在thissystem独立被测试了。结果证明反应效率被这些因素影响。放大aginsengSSR地点的基于的在结果,一个马厩,生产、可再现的PCR系统和骑车的节目被获得:包含1.0UTaqDNA聚合酶的20μL系统,2.0mmol·L~(-1)Mg~(2+),0.2mmol·L~(-1)dNTPs,0.3μmol·L~(-1)SSR教材,60ng·μL~(-1)DNA模板,用94的一个程序表现了为5的℃min,为30s的94℃,为30s在56.3℃退火,为1min的72℃,37个周期,为7min在72℃完成,并且在4℃存储。
简介:TherootofPanaxginsengplantundergoesaspecificdevelopmentalprocesstobecomeabiosynthesisandaccumulationtissueforginsenosides.Toidentifyandanalyzegenesinvolvedinthebiosynthesisofginsenoside,weconstructedandcharacterizedafull-lengthcDNAlibraryfor6-year-oldNorthAmericanginseng.ThetiterofprimarycDNAlibraryis1.2×106pfu/mL,thetiterofamplifiedlibraryis2.6×1010pfu/mLandtherateofrecombinantisabove86%.Theinsertsizerangesfrom0.3to2.0kb.Sequencingresultsshowthat18of58genesarehighhomologoustothegenes(GBR5,GBR3andGBR1)knowninGenBank,whichareinvolvedinbiosynthesisofginsenosideinNorthAmericanginsengplant;16of58genesarenovelgenes.Thefull-lengthcDNAlibraryofNorthAmericanginsengroottissuesisessentialforthecloningofgenesknownanditisalsoaninitialkeyforthescreeningandcloningofnewgenes.
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简介:GinsenosidesRg1,Re,Rb1,Rc,Rb2,Rb3,andRdindifferentpartsoftheAmericanginsengplantwereinvestigated.Theextractionprocesswasapressurizedmicrowave-assistedextraction(PMAE).Thesevenginsenosideswereseparatedanddeterminedbyhigh-performanceliquidchromatography(HPLC)withaultraviolet(UV)detector,at203nm.TheexperimentresultsshowedsignificantvariationsintheindividualginsenosidecontentsoftheAmericanginsengindifferentpartsandagesoftheplant.Theresultsdemonstratedthattheleaves,roothairs,andrhizomesofPanaxquinquefoliusL.containedhigherginsenosidecontents,followedbythemainrootsandstems.TheleavescontaineddramaticallyhigherlevelsofginsenosideRg1,Rb3,andRdthantheotherfourparts.HighercontentsofRb1andRewerepresentinthemainroots,roothairs,andrhizomes.Theamountofginsenosidecontentinthestemswasthelowest.Thetotalcontentofthesevenginsenosidesinmainroots,roothairsandrhizomesincreasedwiththeageoftheplant.Incontrast,theginsenosidecontentsintheleavesandstemsdecreasedwithayearofgrowth.
简介:性健康或可勃起的机能障碍(编辑)现状指南提供常规药方或另外的著名外来的治疗的彻底的概述选择。在过去的10-15年,然而,国际研究人员的过多证实了单个、全面的生活方式变化能阻止并且潜在地改善我们考察的编辑应该等同分级A或为我们也考察的编辑铺平1个证据建议的生活方式证据为人参属人参的证据,一普通(OTC)有实验室调查,在约15年的多重积极使随机化的审判和几i的35年的历史的饮食的补充也许现在是至少在编辑指南讨论并且甚至强调生活方式和另外的非常规的干预以便病人们能探索的时间多种潜在地,与他们的医生和罐头一起的synergistic选择改进他们生活的质量和数量。例如,在编辑指南在生活方式修正上忽略一致、积极数据等于忽略食谱和生活方式变化减少风险或改善心血管的疾病。