ArticleRice (New York, N.Y.)2018
Exploring traditional aus-type rice for metabolites conferring drought tolerance.
Article in Rice (New York, N.Y.), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.
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Who cites it
28 citing papers in PubMed.
- Induction of glutathione and flavonoid biosynthesis activates antioxidant enzymes to enhance drought tolerance in rice.BMC plant biology · 2026Article
- Foliar application of allantoin reinforces antioxidant defense and glyoxalase systems to confer tolerance against arsenic toxicity in rice (Oryza sativa L.).BMC plant biology · 2026Article
- Detection of three novel loci involved in reduced seed-shattering behaviour of an aus rice cultivar, Oryza sativa Kasalath.Molecular genetics and genomics : MGG · 2025Article
- Amino Acid Regulation in Rice: Integrated Mechanisms and Agricultural Applications.Rice (New York, N.Y.) · 2025Review
- A pangenome reference of wild and cultivated rice.Nature · 2025Article
- Harnessing NMR technology for enhancing field crop improvement: applications, challenges, and future perspectives.Metabolomics : Official journal of the Metabolomic Society · 2025Review
- Genome-wide analysis of Udai21: Unraveling the genetic basis of superior eating quality in rice.PloS one · 2025Article
- Shifts in Structure and Assembly Processes of Root Endophytic Community Caused by Climate Warming and Precipitation Increase in Alpine Grassland.Microorganisms · 2024Article
- Identification and Expression Analysis ofGenes · 2024Article
- Fine mapping of the panicle length QTLMolecular breeding : new strategies in plant improvement · 2024Article
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- Exogenous Allantoin Confers Rapeseed (Antioxidants (Basel, Switzerland) · 2023Article
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- Traces of Introgression from cAus into Tropical Japonica Observed in African Upland Rice Varieties.Rice (New York, N.Y.) · 2023Article
- Genetic Dissection of Alkalinity Tolerance at the Seedling Stage in Rice (Plants (Basel, Switzerland) · 2022Article
- Integrated Physiological, Transcriptomic, and Metabolomic Analyses Revealed Molecular Mechanism for Salt Resistance in Soybean Roots.International journal of molecular sciences · 2021Article
- Omics for the Improvement of Abiotic, Biotic, and Agronomic Traits in Major Cereal Crops: Applications, Challenges, and Prospects.Plants (Basel, Switzerland) · 2021Review
- Prolonged drought imparts lasting compositional changes to the rice root microbiome.Nature plants · 2021Article
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- Seasonal Metabolic Investigation in Pomegranate (Frontiers in plant science · 2021Article
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6 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundTraditional varieties and landraces belonging to the aus-type group of rice (Oryza sativa L.) are known to be highly tolerant to environmental stresses, such as drought and heat, and are therefore recognized as a valuable genetic resource for crop improvement. Using two aus-type (Dular, N22) and two drought intolerant irrigated varieties (IR64, IR74) an untargeted metabolomics analysis was conducted to identify drought-responsive metabolites associated with tolerance.
resultsThe superior drought tolerance of Dular and N22 compared with the irrigated varieties was confirmed by phenotyping plants grown to maturity after imposing severe drought stress in a dry-down treatment. Dular and N22 did not show a significant reduction in grain yield compared to well-watered control plants, whereas the intolerant varieties showed a significant reduction in both, total spikelet number and grain yield. The metabolomics analysis was conducted with shoot and root samples of plants at the tillering stage at the end of the dry-down treatment. The data revealed an overall higher accumulation of N-rich metabolites (amino acids and nucleotide-related metabolites allantoin and uridine) in shoots of the tolerant varieties. In roots, the aus-type varieties were characterised by a higher reduction of metabolites representative of glycolysis and the TCA cycle, such as malate, glyceric acid and glyceric acid-3-phosphate. On the other hand, the oligosaccharide raffinose showed a higher fold increase in both, shoots and roots of the sensitive genotypes. The data further showed that, for certain drought-responsive metabolites, differences between the contrasting rice varieties were already evident under well-watered control conditions.
conclusionsThe drought tolerance-related metabolites identified in the aus-type varieties provide a valuable set of protective compounds and an entry point for assessing genetic diversity in the underlying pathways for developing drought tolerant rice and other crops.
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