简介：Seventeenricevarietiesandhybridsofdifferenttypes(indica,japonica,javanica,indicahybrid,japonicahybridandinter-subspecifichybrid)wereevaluatedtodeterminetheeffectoftemperatureonpollenfertilityininter-subspecfichybrids.Thepollenfertilityofinter-subspecifichybridswasgreatlyreducedwhenaveragedailytemperaturedroppedto22.0-23.0℃atmeiosisstage,andtheextentofpollenfertilityreductionvariedgreatlywithrespecttodifferenthybrids.However,thepollenfertilityreductionofindicaandjaponicahybridsandconventionalvarietieswasnotobviousunderthesameregimeoftemperatureconditions.Whentheaveragedailytemperaturedroppedto20℃.thepollendevelopmentofconventionalvarietiesandhybridswasalsoaffected.Correlationanalysisrevealedthatthereexistedapositivecorrelationbetweenpollenfertilityandaveragedailytemperature.Asignificantdifference(P<0.01)wasalsofoundbetweenthetwocorrelationcoefficientsi.e.inter-subspecifichybridsandconventionalvarieties.Temperatureatmeiosisstageofpollenmothercellwasakeyfactorinpollendeveloping,andthepollenfertilityofinter-subspecifichybridswasmoresensitivetolowtemperaturethanthatoftraditionalvariety.

简介：Inordertoselectasuitablegenotypeforthestudiesongenetictransformation,thedifferenceamongthreegenotypes(DN04-18,DN04-25andDN04-26)ofPopulus×euramericana(Populusdeltoides×P.nigra)intermsofshootregenerationwasinvestigatedinthispaper.AnefficientinvitromicropropagationmethodwassuccessfullyestablishedforgenotypeDN04-18.Thehighfrequencyshootregeneration(90.0%)fromleafdiscswasobtainedingenotypeDN04-18onthemodifiedMurashigeandSkoog(mMS)mediumw...

简介：TheconductivitybehaviorofAl(OH)3-acrylamidehybridpolyacrylamide(hybridPAAm)indistilledwaterwasstudied.Adiscontinuityphenomenonoftheconductivity(k)versusconcentration(c)curveofthehybridPAAminacertainconcentrationregimeisfound.ThisphenomenonisdependentonthemolecularweightofthehybridPAAmandontheparticlesizeandcontentoftheAl(OH)3colloidinthehybridPAAm.ThisphenomenonwasaccountedforassumingionizationofthehybridPAAm.

简介：Anovelgraphene/Agnanoparticles(NPs)hybrid(preparedbyaphysicalmethod(PM))wasincorporatedintoelectrospunTiO2fiberstoimprovevisible-light-drivenphotocatalyticproperties.Theexperimentalstudyrevealedthatthegraphene/AgNPs(PM)hybridnotonlydecreasedthebandgapenergyofTiO2,butalsoenhanceditslightresponseinthevisibleregionduetothesurfaceplasmonresonance(SPR)effect.Inaddition,comparedwiththoseofTiO2fibersincorporatingthegraphene/AgNPshybrid(preparedbyachemicalmethod(CM)),TiO2-graphene/AgNPs(PM)fibersexhibitedahighersurfacephotocurrentdensityandsuperiorphotocatalyticperformance,i.e.,thevisible-light-drivenphotocatalyticactivitywasenhancedby2times.Themainreasonsincludealowersurfacedefectdensityofthegraphene/AgNPs(PM)hybrid,asmallerparticlesize(10nm)andahigherdispersityofAgNPs,whichpromotetherapidtransferofphotoexcitedchargecarriersandinhibittherecombinationofphotogeneratedelectronsandholes.Itisexpectedthatthiskindofternaryelectrospunfiberswillbeapromisingcandidateforapplicationsinwatersplitting,solarcells,CO2conversionandoptoelectronicdevices,etc.

简介：一系列混血儿与色氨酸基于做Tb的Zn-Al分层的双氢氧化物(Tb-LDHs)结合了(此后作为尝试弄短)被软化学药品的方法综合。Tb-LDH/Try混血儿的作文，结构，和荧光被各种各样的描述分析。当Tb-LDH分别地与0.05，0.1，和0.25mol/L尝试答案反应了时，组合分析显示在混血儿在场的色氨酸的内容逐渐地增加了。XRD结果表明新思考出现在Tb-LDH/Try混血儿。Tb-LDH/Try混血儿的TGA曲线与Tb-LDH和尝试的不同。表明的红外系列混血儿的IR系列尝试和Tb-LDH是特征的。荧光灯系列建议绿排放由于5D47Tb3+的F5转变极大地减少了然而并非熄灭，并且归因试一试的排放显然增加了。同时荧光灯Tb-LDH/Try混血儿的系列在可见区域介绍了宽广连续乐队。

简介：TodetecttheintergenerichybridizationbetweentheoysterCrassostreaangulataandSaccostreacucullatacoexistingalongthesoutherncoastofChina,reciprocalcrosseswereconductedbetweenthetwospecies.Barriersforspermrecognizing,binding,penetratingtheegg,andformingthepronucleusweredetectedbyfluorescencestaining.Fromtheresults,althoughfertilizationsuccesswasobservedinhybridcrosses,theoverallfertilizationratewaslowerthanthatofintraspecificcrosses.Alargenumberofhybridlarvaediedat6–8dafterhatching,andthosesurvivedcouldnotcompletemetamorphosis.C.angulata♀×S.cucullata♂larvaehadagrowthratesimilartothatofthematernalspecies,whereasS.cucullata♀×C.angulata♂larvaegrewtheslowestamongallcrosses.Moleculargeneticsanalysisrevealedthathybridprogenywereamphimixishybrids.ThisstudydemonstratedthathybridembryosgeneratedbycrossingC.angulataandS.cucullatacoulddevelopnormallytothelarvalstate,butcouldnotcompletemetamorphosisandthendeveloptothespatstage.Thus,thereisapost-reproductiveisolationbetweenC.angulataandS.cucullata.

简介：Theperformanceandinheritanceof7qualitytraitswerestudiedusingF2ricegrainderivedfrom8×8diallelcrossingmadebyemploying8parentsofdifferentecologicaljaponicaricetypes.Differencesineachtraitamong8parentswerenotobvious,butinF2generation,transgressivephenomenawerefoundinallthetraitsstudied,indicatingthatthegenescontrollingthesetraitsamongparentsweresegregated.Theinheritanceofgrainwidth,grainweight,chalkinessscore(CS),gelatinizationtemperature(GT)andgelconsistency(GC)weresuitabletoadditive-dominantmodel,anddominanteffectcontributedmainlyforthe5traits.Theinheritanceofgrainlength(GL)andamylosecontent(AC)didnotfitintoadditive-dominantmodel,existingepistaticinteractions.Dominantgenesforgrainwidthandgrainweighthadtheefficiencyofdecreasingeffect,anddominantgenesforCS,GTandGChadtheefficiencyofenhancingeffect.Koshihikaricontainedmorerecessivegenesforgelatinizationtemperaturethanothervarieties.Zhendao88hadmoredominantgenesingrainwidthandgrainweightthanothervarieties.Xiushui04possessedmoredominantgenesforGLandGC,andmorerecessivegenesforCSthanothervarieties.

简介：DNAmethylation是能被房间分割在有机体的进化转移到后代的epigenetic现象之一。基因表示伴随的epigenetic规定能在haploidy植物的显型直接被发现。在haploid，Shuhui527，Shuhui363和他们的混血儿的5-CpCpGpG地点的DNAcytosinemethylation被methylation分析敏感扩大多型性(MSAP)方法。有765个DNAmethylated地点，检测，methylation水平比父母在混血儿是更低的。同时，在混血儿和父母之间的不同乐队被分析，methylated地点的二种类型被检测，哪个从haploid，和其它继承了。与涉及房间的methylated地点有关的基因的生物功能组织，使产生代射变化并且反应因素。因此，DNAmethylated修正能激活并且沉默基因和戏在植物生长，开发和进化的一个重要角色。

简介：Novelpyrimidinenucleoside-3,5-dicyanopyridinehybrids(4)orpyridineattachedacylureas(5)wereselectivelyandefficientlypreparedfromthereactionof2'-deoxyuridin-5-yl-methylenemalononitrile(1),malononitrile(2)andthiophenol(3)orfromanunexpecteduracilring-openingandpyridinering-formingsequenceviathereactionof1and3.Itisthefirsttimesuchasequencehaseverbeenreported.

简介：来临三维(3-D)打印了技术在设定的多孔的钛(Ti)的制造提供大可能性植入。然而，打印Ti的bioinert性质提出一个突出的问题。混合微弧的氧化并且热水(MAO-HT)多孔的金属上的处理能生产multi-scaled层次矫形植入，为3-D的表面修正的出现大潜力打印了植入。在这研究，有毛孔的圆柱的多孔的Ti6Al4V(Ti64)脚手架640缩放吗？？