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ID:34390882
大小:438.42 KB
页数:11页
时间:2019-03-05
《氮素在调控玉米籽粒败育中的作用》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、万方数据第2二巷第3期大连轻工业学院学报、,(m22.No32【)(J3年q月JournalofDalianInstitnteofLightIndustrySept2O3ArticlcID:1005.4014(2003)03.0170-06Roleofnitrogenincontrollingkernelabortioninducedbynitrogen-deficientSUNQing-yuan,ZHANGXue—song“h¨.ofBi()&Food’Fedlnol,DalianInst.ofLightlnd..Dalian1
2、16034.China)Kc、一words:nitrogen;maize;kernelabortion;steininfusion;assimilates;invertase;reducingsugarAbstraet.7I'tleohjecliveofthisworkistodeterminewhetherthekernelabortioninducedbynitr(,gen—deflciemisthedirectresultofNsupplytOtheearortheindirectresultoflilt】itatiJl】i
3、T】photoasshnilatesWestem—infusenitmgen—deficientandnitrogen—sufficientplants,respectively,lOprovideadditionalSUCrOSe,N,orsimilaramountsofboth(N+SU(,H)sp)Thenitrogen—deficientplantsarealsostem-infusedwith”N—glycineandsoiltreatmcnLof”N.N01Experimentalresulls{ndieatethat
4、Nplaysaroteofdirectnutri—tio【1.i1cT】hancementandanindirectenzymeeffectOHkerneldevelopment.Thedecreaseofk!rue[abortionisduetOincreasedkernelsinkcapacity,higheractivitiesofbothsolu—hieandinsolubleinvertase,loweraccunmlationofreducedsugarintheendosperm,andgrrateltassimil
5、ateutilizationforstarchsynthesis.CI。Cnumber.Sl431:S513Doeumentcode:A氨素在调控玉米籽粒败育中的作用孙庚元,张雪崧大连轻工业学院生物与食品3-程学院,辽宁大连116034)关键词:氨素;玉米;籽粒败育:茎注射技术;同化物;蔗糖转化酶;还原糖摘要:本研究的任务在于确定氯素对缺氯所引发的玉米籽粒败育的影响:是直接地由于叶面氟索的供给,还是间接地由于光台作用不足。我们利用茎注液技术,分别注^氮索和蔗糖,以及氪隶和蔗糖混合溶液.并利用15氮进行跟踪,分析氮素和糖份对玉米籽粒
6、败育的影响。研究表明:氨素作为同化物直接参与玉米籽粒中蛋白质的合成.同时氮素也提高了蔗糖转化酶的活眭.减少还愿糖的积累.促进淀粉粒的形成,从而提高籽粒的库容、减少玉米籽粒的败育。中图分类号:s143l;s513文献标识码:AIntroductionNitrogendeficiencylowersyieldbydecreasingtheDhotoassimlbltesupplytOtheeat;duetosmall—erleafal-eaa11d/orashonerleafareaduration【1].How{-ver,SOll/
7、CstudiessuggestedthattheuptakeⅢ1‘JassimilaliOilofNafteranthesishasalargeef。fILl¨11《ltinyieldprimarilythroughareductioninkr】‘nelIUlHd/t÷FwhichdoesnotappeartObedirectlyrrhIt。dt1)te*1fareaorphotoassimilfllesupply[2-4JItc“aivcddare:200212一I9Bogl'apl'6’:SUNQiilg·yuall(1957
8、~)Duringearlyreproductivegrowth,Ntransported10theegrcomesfromnewlyabsorbedNfromrOOtSand/orpreviouslyaccumulateNinvegetative【
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