ArticleFrontiers in plant science2020
Reactive Oxygen Species, Antioxidant Agents, and DNA Damage in Developing Maize Mitochondria and Plastids.
Article in Frontiers in plant science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.
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Who cites it
24 citing papers in PubMed, 43 citations in OpenAlex.
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- Ribonucleotide and R-Loop Damage in Plastid DNA and Mitochondrial DNA during Maize Development.Plants (Basel, Switzerland) · 2023Article
- Exploring the Potential of Heterosis to Improve Nitrogen Use Efficiency in Popcorn Plants.Plants (Basel, Switzerland) · 2023Article
- Oxidative and Glycation Damage to Mitochondrial DNA and Plastid DNA during Plant Development.Antioxidants (Basel, Switzerland) · 2023Review
- ATM and ATR, two central players of the DNA damage response, are involved in the induction of systemic acquired resistance by extracellular DNA, but not the plant wound response.Frontiers in immunology · 2023Article
- NRF2 in Cancer: Cross-Talk with Oncogenic Pathways and Involvement in Gammaherpesvirus-Driven Carcinogenesis.International journal of molecular sciences · 2022Review
- Upregulation of genes encoding plastidic isoforms of antioxidant enzymes and osmolyte synthesis impart tissue tolerance to salinity stress in bread wheat.Physiology and molecular biology of plants : an international journal of functional plant biology · 2022Article
- Graph-based models of theNAR genomics and bioinformatics · 2022Article
- Glycation damage to organelles and their DNA increases during maize seedling development.Scientific reports · 2022Article
- Analysis of the Plastid Genome Sequence During Maize Seedling Development.Frontiers in genetics · 2022Article
- Hepatoprotective Effect of Mitochondria-Targeted Antioxidant Mito-TEMPO against Lipopolysaccharide-Induced Liver Injury in Mouse.Mediators of inflammation · 2022Article
- Effect of subdoses of sugarcane ripeners on lettuce physiology in a drift scenario.Ecotoxicology (London, England) · 2021Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Maize shoot development progresses from non-pigmented meristematic cells at the base of the leaf to expanded and non-dividing green cells of the leaf blade. This transition is accompanied by the conversion of promitochondria and proplastids to their mature forms and massive fragmentation of both mitochondrial DNA (mtDNA) and plastid DNA (ptDNA), collectively termed organellar DNA (orgDNA). We measured developmental changes in reactive oxygen species (ROS), which at high concentrations can lead to oxidative stress and DNA damage, as well as antioxidant agents and oxidative damage in orgDNA. Our plants were grown under normal, non-stressful conditions. Nonetheless, we found more oxidative damage in orgDNA from leaf than stalk tissues and higher levels of hydrogen peroxide, superoxide, and superoxide dismutase in leaf than stalk tissues and in light-grown compared to dark-grown leaves. In both mitochondria and plastids, activities of the antioxidant enzyme peroxidase were higher in stalk than in leaves and in dark-grown than light-grown leaves. In protoplasts, the amount of the small-molecule antioxidants, glutathione and ascorbic acid, and catalase activity were also higher in the stalk than in leaf tissue. The data suggest that the degree of oxidative stress in the organelles is lower in stalk than leaf and lower in dark than light growth conditions. We speculate that the damaged/fragmented orgDNA in leaves (but not the basal meristem) results from ROS signaling to the nucleus to stop delivering DNA repair proteins to mature organelles producing large amounts of ROS.
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