ArticleJournal of experimental botany2012
Quantifying ATP turnover in anoxic coleoptiles of rice (Oryza sativa) demonstrates preferential allocation of energy to protein synthesis.
Article in Journal of experimental botany, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.
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Who cites it
27 citing papers in PubMed, 70 citations in OpenAlex.
- Metabolic strategies in hypoxic plants.Plant physiology · 2024Review
- Ginseng rusty root symptoms result from nitric oxide stress in soil.Scientific reports · 2024Article
- Comparative transcriptomic analysis of germinating rice seedlings to individual and combined anaerobic and cold stress.BMC genomics · 2023Article
- Flooding tolerance in Rice: adaptive mechanism and marker-assisted selection breeding approaches.Molecular biology reports · 2023Review
- Enhancing crop yields through improvements in the efficiency of photosynthesis and respiration.The New phytologist · 2023Review
- The Molecular Regulatory Pathways and Metabolic Adaptation in the Seed Germination and Early Seedling Growth of Rice in Response to Low OPlants (Basel, Switzerland) · 2020Review
- ATP Hydrolysis Determines Cold Tolerance by Regulating Available Energy for Glutathione Synthesis in Rice Seedling Plants.Rice (New York, N.Y.) · 2020Article
- Overexpression of Barley Transcription FactorInternational journal of molecular sciences · 2020Article
- Signal Dynamics and Interactions during Flooding Stress.Plant physiology · 2018Review
- RNAseq revealed the important gene pathways controlling adaptive mechanisms under waterlogged stress in maize.Scientific reports · 2017Article
- Physiological and de novo transcriptome analysis of the fermentation mechanism of Cerasus sachalinensis roots in response to short-term waterlogging.BMC genomics · 2017Article
- Protein Degradation Rate inThe Plant cell · 2017Article
- RNA-Seq Analysis of Diverse Rice Genotypes to Identify the Genes Controlling Coleoptile Growth during Submerged Germination.Frontiers in plant science · 2017Article
- Energetics of acclimation to NaCl by submerged, anoxic rice seedlings.Annals of botany · 2017Article
- Root Transcriptomic Analysis Revealing the Importance of Energy Metabolism to the Development of Deep Roots in Rice (Frontiers in plant science · 2017Article
- Rice Seed Germination Underwater: Morpho-Physiological Responses and the Bases of Differential Expression of Alcoholic Fermentation Enzymes.Frontiers in plant science · 2017Article
- Ethylene-Regulated Glutamate Dehydrogenase Fine-Tunes Metabolism during Anoxia-Reoxygenation.Plant physiology · 2016Article
- Flux Balance Analysis of Plant Metabolism: The Effect of Biomass Composition and Model Structure on Model Predictions.Frontiers in plant science · 2016Article
- Reactive Nitrogen Species in Mitochondria and Their Implications in Plant Energy Status and Hypoxic Stress Tolerance.Frontiers in plant science · 2016Review
- Unraveling the Light-Specific Metabolic and Regulatory Signatures of Rice through Combined in Silico Modeling and Multiomics Analysis.Plant physiology · 2015Article
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Oxygen deprivation limits the energy available for cellular processes and yet no comprehensive ATP budget has been reported for any plant species under O(2) deprivation, including Oryza sativa. Using 3-d-old coleoptiles of a cultivar of O. sativa tolerant to flooding at germination, (i) rates of ATP regeneration in coleoptiles grown under normoxia (aerated solution), hypoxia (3% O(2)), and anoxia (N(2)) and (ii) rates of synthesis of proteins, lipids, nucleic acids, and cell walls, as well as K(+) transport, were determined. Based on published bioenergetics data, the cost of synthesizing each class of polymer and the proportion of available ATP allocated to each process were then compared. Protein synthesis consumed the largest proportion of ATP synthesized under all three oxygen regimes, with the proportion of ATP allocated to protein synthesis in anoxia (52%) more than double that in normoxic coleoptiles (19%). Energy allocation to cell wall synthesis was undiminished in hypoxia, consistent with preferential elongation typical of submerged coleoptiles. Lipid synthesis was also conserved strongly in O(2) deficits, suggesting that membrane integrity was maintained under anoxia, thus allowing K(+) to be retained within coleoptile cells. Rates of protein synthesis in coleoptiles from rice cultivars with contrasting tolerance to oxygen deficits (including mutants deficient in fermentative enzymes) confirmed that synthesis and turnover of proteins always accounted for most of the ATP consumed under anoxia. It is concluded that successful establishment of rice seedlings under water is largely due to the capacity of coleoptiles to allocate energy to vital processes, particularly protein synthesis.
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