简介:建立了商业化种植的NeWLeaf-YTM转基因马铃薯的筛选检测和鉴定的PCR方法.该方法根据马铃薯自身patatin基因作为内源特异参照基因扩增216bp片段,检查模板DNA提取的质量,避免了假阴性结果;同时扩增FMV35S启动子基因225bp片段和PVY-cp基因161bp片段.PCR反应循环参数是94℃2min;94℃40s,55℃60s,72℃60s,35次循环;之后72℃延伸5min.本实验中的F-primer(PVY01-5′)/R-primer(PVY01-3′)引物是针对商业化种植的NewLeaf-YTM转基因马铃薯PVY-cp抗病毒基因而设计的,具有很强的特异性,可以达到对NeWLeaf-YTM转基因马铃薯鉴定的目的.
简介:WedemonstrateamonolithicsinglefrequencyTm-dopedfiberamplifierwithoutputpowerof51.5W.Asinglefrequencyfiberlaserat1.97μmisamplifiedbyacascadedmasteroscillatorpoweramplifier(MOPA)systemwithall-fiberconfiguration.Theoptical-to-opticalconversionefficiencyofthemainfiberamplifieris45%.Noamplifiedspontaneousemission(ASE)orstimulatedBrillouinscattering(SBS)effectisobservedinthefiberamplifier.Theoutputpowercouldbefurtherscaledbylaunchingmorepumppower.
简介:瞄准:为了在steroidogenesis和机制上调查Cox7a2的规章的功能,在TM3老鼠Leydig房间包含了。方法:Cox7a2的cDNA从TM3老鼠Leydig房间被克隆。它是短暂基因transfection在表达式上为Cox7a2克隆到回来的pDsRed-Express-N1和transfected进TM3鼠标Leydig房间的潜水艇。Steroidogenesis影响了由在表示Cox7a2上被ELISA学习。得到这效果的机制,steroidogenic的表示尖锐规章(星)蛋白质和反应的氧种类(ROS)被西方的污点和氟量计分别地检验。结果:Cox7a2(249bp)的cDNA从Leydig房间被克隆并且由定序的DNA证实了。在构造pDsRed-Express-N1-Cox7a2是回来的transfected进TM3老鼠Leydig房间以后,Cox7a2禁止了导致的luteinizing(LH)不仅睾丸激素的分泌物而且星蛋白质的表示。同时,Cox7a2在TM3老鼠Leydig房间增加了ROS的活动。结论:Cox7a2禁止了导致LH的星蛋白质表示,和作为结果的睾丸激素生产,至少部分地,由在TM3鼠标Leydig房间增加ROS活动。
简介:X-raydiffraction(XRD)anddifferentialscanningcalorimetry(DSC)wereusedtoinvestigatethecrystallizationprocessofamorphousAl90TMxCe10-x(atomfractionin%;TM=FeorNi;x=3,5)alloys.AgingeffectswereexaminedbyX-raydiffraction.ThestructurecorrespondingtotheprepeakfortheamorphousAl90Fe5Ce5alloyismorestablethantheamorphousmatrix,butitisnotstableforamorphousAl90Ni5Ce5alloyduringthefirstcrystallizationstageandevendecomposesatroomtemperature.AlthoughbothAl-NiandAl-Fehavestrongchemicalbonding,thecrystallizationonsettemperatureofamorphousAl-Fe-CealloysismuchhigherthanthatofamorphousAl-Ni-Cealloys,whichislikelycausedbythedifferentstabilityofthestructurecorrespondingtotheprepeak.ThecrystallizationonsettemperatureincreasesasCe/NiratioincreasesinamorphousAl90NixCe10-xalloys,whereasitdecreasesasCe/FeratioincreasesinamorphousAl90FexCe10-xalloys.AbetteratomicpackingproducesasCecontentincreasesbecauseofthesizemismatchinAlNi-CesystemsandasFecontentincreasesbecauseoftheincreasingFecentralstructuralunits.
简介:Thesolutionreactionmechanisms,composition,donoratoms,propertiesofcoordinatelinkandstabilityofthecomplexesonthesystemsofadrenalinewithNa3+,Gd3+andTm3+havebeenstudiedbypH-potentiometrictitrationandelectronicspectroscopy.Adrenalineperturbsthef-felectronictransitionofNd3+andTm3+sothattheabsorptionspectraoftheircomplexesareshiftedtowardlongerwavelengths.Theabsorptionspectraofthecomplexesformedbythethreef-blockelementionswithadrenalineareshiftedtowardshorterwavelengthswiththeincreaseofPHinΔγ=350~650nm