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Master regulators of oxidative stress associated genes improves stress adaptation in rice

ABSTRACT: Microarray data of contrasting genotypes were performed between control and stress conditions. Please cite the following work, if you are using the data Sujitha, D., Kumar, H.G.J., Thapliayal, G. et al. Transcription factors controlling the expression of oxidative stress associated genes in rice (Oryza sativa L.). Plant Biotechnol Rep (2023). https://doi.org/10.1007/s11816-023-00819-8

ORGANISM(S): Oryza sativa

PROVIDER: GSE181763 | GEO | 2023/02/13

REPOSITORIES: GEO

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Project description:Episodes of chronic stress can result in psychic disorders like post-traumatic stress disorder, but also promote the development of metabolic syndrome and type 2 diabetes. We hypothesize that muscle, as main regulator of whole-body energy expenditure, is a central target of acute and adaptive molecular effects of stress in this context. Here, we investigate the immediate effect of a stress period on energy metabolism in Musculus gastrocnemius in our established C57BL/6 chronic variable stress (Cvs) mouse model. Cvs decreased lean body mass despite increased energy intake, reduced circadian energy expenditure (EE), and substrate utilization. Cvs altered the proteome of metabolic components but not of the oxidative phosphorylation system (OXPHOS), or other mitochondrial structural components. Functionally, Cvs impaired the electron transport chain (ETC) capacity of complex I and complex II, and reduces respiratory capacity of the ETC from complex I to ATP synthase. Complex I-OXPHOS correlated to diurnal EE and complex II-maximal uncoupled respiration correlated to diurnal and reduced nocturnal EE. Bioenergetics assessment revealed higher optimal thermodynamic efficiencies (ƞ-opt) of mitochondria via complex II after Cvs. Interestingly, transcriptome and methylome were unaffected by Cvs, thus excluding major contributions to supposed metabolic adaptation processes. In summary, the preclinical Cvs model shows that metabolic pressure by Cvs is initially compensated by adaptation of mitochondria function associated with high thermodynamic efficiency and decreased EE to manage the energy balance. This counter-regulation of mitochondrial complex II may be the driving force to longitudinal metabolic changes of muscle physiological adaptation as the basis of stress memory.Chronic stress targets mitochondrial respiratory efficiency in the skeletal muscle of C57BL/6 mice.Nikolic A, Fahlbusch P, Wahlers N, Riffelmann NK, Jacob S, Hartwig S, Kettel U, Dille M, Al-Hasani H, Kotzka J, Knebel B. Cell Mol Life Sci. 2023 Mar 29;80(4):108. doi: 10.1007/s00018-023-04761-4.PMID: 36988756

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Master regulators of oxidative stress associated genes improves stress adaptation in rice

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