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Nitrogen Source Dependent Changes in Central Sugar Metabolism Maintain Cell Wall Assembly in Mitochondrial Complex I-Defective frostbite1 and Secondarily Affect Programmed Cell Death

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dc.abstract.enFor optimal plant growth, carbon and nitrogen availability needs to be tightly coordinated. Mitochondrial perturbations related to a defect in complex I in the Arabidopsis thaliana frostbite1 (fro1) mutant, carrying a point mutation in the 8-kD Fe-S subunit of NDUFS4 protein, alter aspects of fundamental carbon metabolism, which is manifested as stunted growth. During nitrate nutrition, fro1 plants showed a dominant sugar flux toward nitrogen assimilation and energy production, whereas cellulose integration in the cell wall was restricted. However, when cultured on NH4+ as the sole nitrogen source, which typically induces developmental disorders in plants (i.e., the ammonium toxicity syndrome), fro1 showed improved growth as compared to NO3− nourishing. Higher energy availability in fro1 plants was correlated with restored cell wall assembly during NH4+ growth. To determine the relationship between mitochondrial complex I disassembly and cell wall-related processes, aspects of cell wall integrity and sugar and reactive oxygen species signaling were analyzed in fro1 plants. The responses of fro1 plants to NH4+ treatment were consistent with the inhibition of a form of programmed cell death. Resistance of fro1 plants to NH4+ toxicity coincided with an absence of necrotic lesion in plant leaves.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorBorysiuk, Klaudia
dc.contributor.authorTarnowska, Agata
dc.contributor.authorSzal, Bożena
dc.contributor.authorPodgórska, Anna
dc.contributor.authorBurian, Maria
dc.contributor.authorGardestrom, Per
dc.contributor.authorOstaszewska-Bugajska, Monika
dc.date.accessioned2024-01-25T13:50:18Z
dc.date.available2024-01-25T13:50:18Z
dc.date.copyright2018-07-28
dc.date.issued2018
dc.description.accesstimeAT_PUBLICATION
dc.description.financeNie dotyczy
dc.description.versionFINAL_PUBLISHED
dc.description.volume19
dc.identifier.doi10.3390/IJMS19082206
dc.identifier.issn1422-0067
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/113794
dc.identifier.weblinkhttps://www.mdpi.com/1422-0067/19/8/2206
dc.languageeng
dc.pbn.affiliationbiological sciences
dc.relation.ispartofInternational Journal of Molecular Sciences
dc.relation.pages2206
dc.rightsCC-BY
dc.sciencecloudnosend
dc.subject.encell wall synthesis
dc.subject.encomplex I defect
dc.subject.enfrostbite1
dc.subject.enmitochondrial mutant
dc.subject.enNDUFS4
dc.subject.ennecrosis
dc.subject.ensugar catabolism
dc.subject.ensugar signaling
dc.subject.enprogrammed cell death
dc.subject.enreactive oxygen species
dc.titleNitrogen Source Dependent Changes in Central Sugar Metabolism Maintain Cell Wall Assembly in Mitochondrial Complex I-Defective frostbite1 and Secondarily Affect Programmed Cell Death
dc.typeJournalArticle
dspace.entity.typePublication