Dissecting the interaction of photosynthetic electron transfer with mitochondrial signalling and hypoxic response in the Arabidopsis rcd1 mutant

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dc.contributor.author Shapiguzov, Alexey
dc.contributor.author Nikkanen, Lauri
dc.contributor.author Fitzpatrick, Duncan
dc.contributor.author Vainonen, Julia P.
dc.contributor.author Gossens, Richard
dc.contributor.author Alseekh, Saleh
dc.contributor.author Aarabi, Fayezeh
dc.contributor.author Tiwari, Arjun
dc.contributor.author Blokhina, Olga
dc.contributor.author Panzarova, Klara
dc.contributor.author Benedikty, Zuzana
dc.contributor.author Tyystjärvi, Esa
dc.contributor.author Fernie, Alisdair R.
dc.contributor.author Trtilek, Martin
dc.contributor.author Aro, Eva-Mari
dc.contributor.author Rintamäki, Eevi
dc.contributor.author Kangasjarvi, Jaakko
dc.date.accessioned 2020-10-12T13:09:01Z
dc.date.available 2020-10-12T13:09:01Z
dc.date.issued 2020-06-22
dc.identifier.citation Shapiguzov , A , Nikkanen , L , Fitzpatrick , D , Vainonen , J P , Gossens , R , Alseekh , S , Aarabi , F , Tiwari , A , Blokhina , O , Panzarova , K , Benedikty , Z , Tyystjärvi , E , Fernie , A R , Trtilek , M , Aro , E-M , Rintamäki , E & Kangasjarvi , J 2020 , ' Dissecting the interaction of photosynthetic electron transfer with mitochondrial signalling and hypoxic response in the Arabidopsis rcd1 mutant ' , Philosophical Transactions of the Royal Society. Biological Sciences , vol. 375 , no. 1801 , 20190413 . https://doi.org/10.1098/rstb.2019.0413
dc.identifier.other PURE: 146467605
dc.identifier.other PURE UUID: b464f546-7d93-4cef-a1b6-a59d29d981a2
dc.identifier.other WOS: 000531411500016
dc.identifier.other ORCID: /0000-0002-8959-1809/work/82128595
dc.identifier.other ORCID: /0000-0001-7199-1882/work/82129544
dc.identifier.other ORCID: /0000-0002-8516-3970/work/82132571
dc.identifier.uri http://hdl.handle.net/10138/320200
dc.description.abstract The Arabidopsis mutant rcd1 is tolerant to methyl viologen (MV). MV enhances the Mehler reaction, i.e. electron transfer from Photosystem I (PSI) to O-2, generating reactive oxygen species (ROS) in the chloroplast. To study the MV tolerance of rcd1, we first addressed chloroplast thiol redox enzymes potentially implicated in ROS scavenging. NADPH-thioredoxin oxidoreductase type C (NTRC) was more reduced in rcd1. NTRC contributed to the photosynthetic and metabolic phenotypes of rcd1, but did not determine its MV tolerance. We next tested rcd1 for alterations in the Mehler reaction. In rcd1, but not in the wild type, the PSI-to-MV electron transfer was abolished by hypoxic atmosphere. A characteristic feature of rcd1 is constitutive expression of mitochondrial dysfunction stimulon (MDS) genes that affect mitochondrial respiration. Similarly to rcd1, in other MDS-overexpressing plants hypoxia also inhibited the PSI-to-MV electron transfer. One possible explanation is that the MDS gene products may affect the Mehler reaction by altering the availability of O-2. In green tissues, this putative effect is masked by photosynthetic O-2 evolution. However, O-2 evolution was rapidly suppressed in MV-treated plants. Transcriptomic meta-analysis indicated that MDS gene expression is linked to hypoxic response not only under MV, but also in standard growth conditions. This article is part of the theme issue 'Retrograde signalling from endosymbiotic organelles'. en
dc.format.extent 10
dc.language.iso eng
dc.relation.ispartof Philosophical Transactions of the Royal Society. Biological Sciences
dc.rights cc_by
dc.rights.uri info:eu-repo/semantics/openAccess
dc.subject Arabidopsis thaliana
dc.subject photosynthetic electron transfer
dc.subject reactive oxygen species
dc.subject hypoxia
dc.subject mitochondrial dysfunction stimulon
dc.subject retrograde signalling
dc.subject PHOTOSYSTEM-I
dc.subject REDUCTASE C
dc.subject OXYGEN
dc.subject REDOX
dc.subject PATHWAY
dc.subject 1182 Biochemistry, cell and molecular biology
dc.title Dissecting the interaction of photosynthetic electron transfer with mitochondrial signalling and hypoxic response in the Arabidopsis rcd1 mutant en
dc.type Article
dc.contributor.organization Organismal and Evolutionary Biology Research Programme
dc.contributor.organization Plant ROS-Signalling
dc.contributor.organization Plant Biology
dc.contributor.organization Faculty of Biological and Environmental Sciences
dc.contributor.organization Biosciences
dc.contributor.organization Staff Services
dc.contributor.organization Viikki Plant Science Centre (ViPS)
dc.description.reviewstatus Peer reviewed
dc.relation.doi https://doi.org/10.1098/rstb.2019.0413
dc.relation.issn 0962-8436
dc.rights.accesslevel openAccess
dc.type.version publishedVersion

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