Cell AgingCyclin-Dependent Kinase Inhibitor p16TelomereTumor Suppressor Protein p53AgingFibroblastsPlant LeavesTelomeraseCyclin-Dependent Kinase Inhibitor p21Aging, Prematurebeta-GalactosidaseDNA DamageCells, CulturedCell ProliferationTelomere ShorteningRetinoblastoma ProteinGene Expression Regulation, PlantChlorophyllEthylenesCell CycleOxidative StressTumor Suppressor Protein p14ARFLongevitySignal TransductionCell Line, TumorApoptosisCell Cycle CheckpointsCell Transformation, NeoplasticArabidopsisReactive Oxygen SpeciesPhenotypePlant Growth RegulatorsTumor Suppressor ProteinsCell LineTime FactorsCell DivisionSirtuin 1Plant ProteinsFlowersPlants, Genetically ModifiedArabidopsis ProteinsDown-RegulationCytokininsRNA InterferenceMutationGene Expression RegulationPetuniaRNA, Small Interferingras ProteinsModels, BiologicalDiploidyNuclear ProteinsNeoplasmsDNA-Binding ProteinsTelomeric Repeat Binding Protein 2Up-RegulationCell Cycle ProteinsHydrogen PeroxideCyclopentanesProgeriaOxylipinsCell Line, TransformedTranscription FactorsDarknessPlant StemsBlotting, WesternReverse Transcriptase Polymerase Chain ReactionCyclin-Dependent Kinase Inhibitor p15Genes, rasGene Knockdown TechniquesGene Expression ProfilingForeskinReproductionRepressor ProteinsProtein-Serine-Threonine KinasesRNA, MessengerMice, KnockoutGenes, p16AlstroemeriaOncogenesEndothelial CellsWerner SyndromeGenes, p53HCT116 CellsAutophagyOncogene Protein p21(ras)Stress, PhysiologicalTOR Serine-Threonine KinasesDianthusMolecular Sequence DataCyclin-Dependent Kinase Inhibitor p19OxidantsCyclinsRNA, PlantGene Expression Regulation, NeoplasticMice, Inbred C57BLGene ExpressionProto-Oncogene Proteins c-mycHistonesHeterochromatin