Structural and Histochemical Characterization of Developing Rice Caryopsis

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摘要 Thedevelopmentofpericarp,seedcoat,starchyendospermandaleuroneofthericecaryopsiswasinvestigated,histochemicallyandstructurally,fromthetimeoffloweringtomaturity.Theresultsshowedthatduringitsgrowth,themaximumlengthofthecaryopsiswasattainedfirst,followedbywidthandthenthickness.Histochemicalexaminationofthecaryopsisshowedthatstarchwasmainlyaccumulatedintheendosperm,buttheendospermshowednometabolicactivity,whileembryoandpericarpcontainedafewstarchgrains,andembryoandaleuronewerestronglyactive.Aleuroniccellscontainedmanyaleuronegrainsandspherosomes,andaleuroneinthedorsalregiondevelopedearlierandcontainedmorelayersofcells.Amyloplastsinendospermcontainedmanystarchgranulesandweresphericalatearlystagesbutpolyhedricatlatestages.Theproteinbodiesappearedlaterthanamyloplasts,andthenumberofproteinbodiesinsubaleuronewasgreaterthanthoseinthestarchyendosperm.Thewhite-bellyportionofendospermmightberelativetothestatusofamyloplastdevelopment.
机构地区 不详
出处 《水稻科学:英文版》 2014年3期
出版日期 2014年03月13日(中国期刊网平台首次上网日期,不代表论文的发表时间)
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