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ABA--乙烯互作调控樱桃番茄果实成熟的效应与机理研究 Title:EffectsandMechanismsofABA-EthyleneCrosstalkinRegulatingCherryTomatoFruitRipening Abstract: Fruitripeningisacomplexandcoordinatedprocessregulatedbyvariousphytohormonesworkinginsynergy.Amongthesephytohormones,abscisicacid(ABA)andethylenehavebeenwidelystudiedfortheircrucialrolesinfruitripening.ThispaperaimstoreviewtheeffectsandmechanismsofABA-ethylenecrosstalkinregulatingcherrytomatofruitripening.WehighlightthereciprocalrelationshipbetweenABAandethyleneandtheirintricateregulatorynetworkduringfruitripening.TheunderstandingofABA-ethyleneinteractionsisofgreatsignificanceforoptimizingfruitripeningprocessesinhorticulturalpractices. 1.Introduction Fruitripeningisahighlycoordinatedprocessinvolvingphysiological,biochemical,andmolecularchanges,leadingtothedevelopmentofdesirablesensoryandnutritionalattributes.Severalphytohormones,includingABAandethylene,playessentialrolesinthisprocess.ThissectionpresentsabriefoverviewoftheimportanceofABAandethyleneinfruitripeningregulation,emphasizingtheirinterplayandcrosstalk. 2.BiochemicalandPhysiologicalEffectsofABAandEthyleneonFruitRipening Inthissection,wediscusstheindividualeffectsofABAandethyleneonvariousaspectsofcherrytomatofruitripening.ABAregulatescarotenoidbiosynthesis,sugaraccumulation,andfruitsoftening.Ethylene,ontheotherhand,promotespigmentformation,ethylenebiosynthesis,andcellwallmetabolism.ThedifferentialrolesofABAandethyleneintheregulationofthesebiochemicalandphysiologicalprocessesareexploredindetail. 3.CrosstalkbetweenABAandEthyleneduringCherryTomatoFruitRipening ThecrosstalkbetweenABAandethyleneisbidirectionalandhighlyinterconnected.ThissectiondelvesintothereciprocalregulatorymechanismsbetweenABAandethyleneduringcherrytomatofruitripening.WeexploretheinfluenceofABAonethylenebiosynthesisandperception,aswellastheimpactofethyleneonABAmetabolismandsignaling.Thecoordinatedactionofthesetwophytohormonesisessentialforfine-tuningfruitripeningprogression. 4.MolecularMechanismsUnderlyingABA-EthyleneIntera