6533b7d0fe1ef96bd125ade3
RESEARCH PRODUCT
Arabidopsis RCD1 coordinates chloroplast and mitochondrial functions through interaction with ANAC transcription factors
Julia Krasensky-wrzaczekLauri NikkanenEsa TyystjärviJaakko KangasjärviNina SipariMaarit HellmanMarkku KeinänenMikael BroschéMikael BroschéKatrien Van Der KelenSaleh AlseekhJarkko SalojärviFayezeh AarabiArjun TiwariBert De RybelSari JärviBrecht WybouwKerri HunterJulia P. VainonenHelena TossavainenHelena TossavainenMichael WrzaczekAlisdair R. FernieFrank Van BreusegemEevi RintamäkiEva-mari AroPerttu PermiPerttu PermiAlexey ShapiguzovAlexey Shapiguzovsubject
0106 biological sciences0301 basic medicineretrograde signalingChloroplastsArabidopsisPlant BiologyMitochondrion01 natural sciencesElectron Transport Complex IIIGene Expression Regulation PlantArabidopsisOXIDATIVE STRESS-RESPONSETranscriptional regulationCYCLIC ELECTRON FLOWBiology (General)Nuclear proteinANAC transcription factors1183 Plant biology microbiology virologyreactive oxygen speciesbiologyChemistryRETROGRADE REGULATIONGeneral NeuroscienceQRNuclear Proteinsfood and beveragesGeneral MedicinePlants Genetically Modified:Science::Biological sciences [DRNTU]Cell biologyMitochondriaChloroplastviherhiukkasetMedicineSignal transductionmitochondrial functionsResearch ArticleSignal TransductionQH301-705.5SciencemitokondriotGenetics and Molecular BiologyGeneral Biochemistry Genetics and Molecular BiologyPROTEIN COMPLEXESSIGNALING PATHWAYS03 medical and health scienceschloroplastStress PhysiologicalALTERNATIVE OXIDASESkasvitENZYME-ACTIVITIESredox signalingTranscription factorarabidopsis RCD1General Immunology and MicrobiologybiokemiaArabidopsis Proteinsta1182Biology and Life Sciencesbiology.organism_classification030104 developmental biologyCELL-DEATHPLANT-MITOCHONDRIAA. thalianaGeneral BiochemistryRetrograde signalingGENES-ENCODING MITOCHONDRIALproteiinit010606 plant biology & botanyTranscription Factorsdescription
Reactive oxygen species (ROS)-dependent signaling pathways from chloroplasts and mitochondria merge at the nuclear protein RADICAL-INDUCED CELL DEATH1 (RCD1). RCD1 interacts in vivo and suppresses the activity of the transcription factors ANAC013 and ANAC017, which mediate a ROS-related retrograde signal originating from mitochondrial complex III. Inactivation of RCD1 leads to increased expression of mitochondrial dysfunction stimulon (MDS) genes regulated by ANAC013 and ANAC017. Accumulating MDS gene products, including alternative oxidases (AOXs), affect redox status of the chloroplasts, leading to changes in chloroplast ROS processing and increased protection of photosynthetic apparatus. ROS alter the abundance, thiol redox state and oligomerization of the RCD1 protein in vivo, providing feedback control on its function. RCD1-dependent regulation is linked to chloroplast signaling by 3'-phosphoadenosine 5'-phosphate (PAP). Thus, RCD1 integrates organellar signaling from chloroplasts and mitochondria to establish transcriptional control over the metabolic processes in both organelles.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-02-01 |