Expression Analysis of Genes Related to Rice Resistance Against Brown Planthopper, Nilaparvata lugens-中国Betway体育网页登陆

摘要 Brownplanthopper(BPH)isaninsectspeciesthatfeedsonthevascularsystemofriceplants.ToexaminethedefencemechanismofriceplantsagainstBPH,thepathogenesis-relatedgenes(PR1a,PR2,PR3,PR4,PR6,PR9,PR10a,PR13,PR15andPRpha),signalingmoleculesynthesisgenes(AOS,AXR,ACOandLOX),antioxidant-relatedgenes(CAT,TRX,GSTandSOD)andligninbiosynthesis-relatedgenes(CHS,CHIandC4H)wereinvestigatedinaresistantricevariety.AOS,PR6,PR9andPR15genesshowedsignificantlyincreasedrelativeexpressionlevelsat24.38-,19.17-,14.71-,and12.74-foldcomparedtothecontrol.Moderateincreasedrelativeexpressionlevelsofligninbiosynthesis-relatedgene(C4H),pathogenesis-relatedgenes(PR4,PR10aandPRpha),andantioxidant-relatedgene(GST)werefound,whileCHI,LOX,SOD,TRX1andAXRshoweddecreasedrelativeexpressionlevels.Itwasthusclearlyshownthatwound-inducedresponsegeneswereactivatedinriceplantsafterBPHattacksthroughAOSactivation.JasmonicacidsignalingmoleculemayactivatePR6,PR15,GSTandCATsubsequentlyincreasingtheirexpressionforH2O2detoxification.PR6wereexpressedatthehighestrelativelevelamongthePRgenes.ThesegenesthereforehavealsoaconsiderablesynergisticrolewiththeothergenesagainstBPHbyinterferedtheirdigestiontractsystem.

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Expression Analysis of Genes Related to Rice Resistance Against Brown Planthopper, Nilaparvata lugens

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