水稻白条纹突变体6001剑叶光合功能衰老特性研究.pdf

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1、中国水稻科学(ChinJRiceSci)，2014，28(1)：49—56http：ffwww．ricesci．cnDOI：10．3969／j．issn．1001—7216．2014．01．00749水稻白条纹突变体6001剑叶光合功能衰老特性研究甄晓辉沈唯军张小娟徐金刚张启军2吕JiI根2陈国祥，3，高志萍，(1南京师范大学生命科学学院，南京210097；2江苏省农业科学院粮食作物研究所，南京210014；3南京体育学院，南京210014；通讯联系人，E—mail：ketty．gao@gmail．corn)SenescentCha

2、racteristicsofFlagLeafPh0tosynthesisinaWhiteStripeRiceMutant6001ZHENXiao—hui，SHENWeijun，ZHANGXiao—juan，XUJingang，ZHANGQi-jHn。，LUChuan-gen。，CHENGuo-xiang，。一．GAOZhi—ping，(JCollegeofLifeSciences，NanjingNormalUniversity，Nanjing210097，China；2InstituteofFood&Crops，JiangsuAca

3、demyofAgriculturalSciences，Nanjing210014，China；3NanjingSportInstitute，Nanjing210014，China；Correspondingauthor，E-mail：ketty．gao@gmail．coTn)ZHENXiaohui，SHENWeijun，ZHANGXiaojuan，eta1．Senescentcharacteristicsofflagleafphotosynthesisinawhitestripericemutant6001．ChinJRiceSci

4、，2014，28(1)：4956．Abstract：Thephotosyntheticperformanceofflagleafinawhitestripericemutant6001，wasanalyzedbycombingphysiological，biochemicalandelectronultramicroscopetechniquesduringtheagingprocess．Theresultsofphysiologicalandbiochemicalanalysesshowedthatascomparedtothew

5、ildtype6028，thechlorophyllcontentinmutantwas34．78，3．00lowerinheadingandmilkripestages，respectively，buthigherinfullripeningstage．Netphotosyntheticratewasa[solowerinheadingstage，butdeclinedmoreslowlywithaging，especiallyattheIaterperiodofaging．Ca一ATPase／Mg+一ATPaseenzymeac

6、tivitiesandphotophosphory1ati0nactivityalsoshowasametrend．Only68kDapeptidecomponentinthethylakoidmembranewaschangedsignificantlywithaging，thechangeinthepeptidecomponentcontentmightinvolvedinthephotosynthesischanges．Theobservationresultswiththeelectronultramicroscopesho

7、wedthat，themutanthadmoreintactchloroplast，andthechloroplastmembranedisintegratedmoreslowlyintheprocessofaging．Inconclusion，theslowdownofthephotosyntheticsenescenceintheagingprocesssuggestedmutant6001performedaantiagingproperties．Keywords：chlorophyll；netphot0syntheticra

8、te；photophosphorylation；fluorescenceemissionspectrare；polypeptidecomponents：u1trastructure甄晓辉，沈唯军，张小娟，等．水稻白条纹突变体6001剑