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采后果蔬呼吸代谢途径及其调控研究进展
Title:ResearchProgressonRespirationandMetabolicPathwaysinPost-harvestFreshFruitsandVegetablesandtheirRegulation
Introduction:
Post-harvestphysiologicalchangesinfreshfruitsandvegetablesareacomplexprocessinfluencedbyrespirationandmetabolism.Understandingtheunderlyingmechanismsandregulationoftheseprocessesiscrucialformaintainingthequalityandshelflifeoftheseperishablecommodities.Thispaperprovidesanoverviewofthecurrentresearchprogressregardingtherespiratoryandmetabolicpathwaysinpost-harvestfreshfruitsandvegetables,aswellastheirregulation.
RespirationinPost-harvestFreshFruitsandVegetables:
Respirationisavitalmetabolicprocessinplantsandplaysasignificantroleinpost-harvestqualityandsenescence.Theintensityofrespirationinfreshfruitsandvegetablesismainlyinfluencedbyfactorssuchastemperature,humidity,oxygenlevel,andthephysiologicalstageoftheproduce.TheprincipalpathwaysinvolvedinrespirationaretheKrebscycle(ortricarboxylicacidcycle),glycolysis,andtheelectrontransportchain.Thesepathwaysareresponsibleforenergyproductionthroughthebreakdownofcarbohydrates,lipids,andproteins.
MetabolicPathwaysinPost-harvestFreshFruitsandVegetables:
Metabolisminpost-harvestfreshfruitsandvegetablesinvolvesmultiplepathwaysthatinfluencethesynthesisanddegradationofvariouscompounds,includingsugars,organicacids,fattyacids,andsecondarymetabolites.Thesemetabolicpathwaysareregulatedbyenzymaticreactions,transportmechanisms,andinterconversionprocesses.Examplesofimportantmetabolicpathwaysincludeglycolysis,gluconeogenesis,thepentosephosphatepathway,andthecitricacidcycle.Thesepathwayscontributetothemaintenanceofcellstructure,energyproduction,andthesynthesisofflavorandaromacompounds.
RegulationofRespirationandMetabolicPathways:
Theregulationofrespirationandmetabolicpathwaysinpost-harvestfreshfruitsandvegetablesisacomplexprocessorchestratedbygenetic,biochemical,andenvironmentalfactors.Theexpressionofspecificgenesandtheactivityofenzymesarekeyregulatorymechanisms.Severaltranscriptionfactorsandhormonalsi