ArticlePlant biotechnology journal2018
Deciphering drought-induced metabolic responses and regulation in developing maize kernels.
Article in Plant biotechnology journal, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers.
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47 citing papers in PubMed, 120 citations in OpenAlex.
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- Melatonin-Mediated Modulation of Metabolic Pathways Enhances Cold Tolerance in Alfalfa (Plants (Basel, Switzerland) · 2026Article
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- Not to be overlooked: dipeptides and their role in plant stress resilience.Journal of experimental botany · 2025Review
- Adjustments of plant primary metabolism in the face of climate change.Journal of experimental botany · 2025Review
- Co-expression analysis provides a new strategy for mining key metabolites and genes in response to drought stress in Agropyron mongolicum.Plant molecular biology · 2025Article
- Elimination of Intraspecific Competition Does Not Improve Maize Leaf Physiological and Biochemical Responses to Topsoil Degradation.Plants (Basel, Switzerland) · 2025Article
- Systems Biology Applications in Revealing Plant Defense Mechanisms in Disease Triangle.International journal of molecular sciences · 2025Review
- Integrative multi-omics analysis reveals the potential mechanism by which Streptomyces pactum Act12 enhances wheat root drought tolerance by coordinating phytohormones and metabolic pathways.BMC plant biology · 2025Article
- Metabolic engineering of lipids for crop resilience and nutritional improvements towards sustainable agriculture.Functional & integrative genomics · 2025Review
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- Calcium and Magnesium Regulation of Kernel Sugar Content in Maize: Role of Endogenous Hormones and Antioxidant Enzymes.International journal of molecular sciences · 2024Article
- Transcriptomic and Metabolomic Profiling of Root Tissue in Drought-Tolerant and Drought-Susceptible Wheat Genotypes in Response to Water Stress.International journal of molecular sciences · 2024Article
- Review
- Growth Properties and Metabolomic Analysis Provide Insight into Drought Tolerance in Barley (International journal of molecular sciences · 2024Article
- Unveiling Drought-Resilient Latin American Popcorn Lines through Agronomic and Physiological Evaluation.Life (Basel, Switzerland) · 2024Article
- Drought Stress Responses in Arabica Coffee Genotypes: Physiological and Metabolic Insights.Plants (Basel, Switzerland) · 2024Article
- Plant Metabolomics: Current Initiatives and Future Prospects.Current issues in molecular biology · 2023Review
- Transcriptome and metabolome analysis reveals key genes and secondary metabolites of Casuarina equisetifolia ssp. incana in response to drought stress.BMC plant biology · 2023Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Drought stress conditions decrease maize growth and yield, and aggravate preharvest aflatoxin contamination. While several studies have been performed on mature kernels responding to drought stress, the metabolic profiles of developing kernels are not as well characterized, particularly in germplasm with contrasting resistance to both drought and mycotoxin contamination. Here, following screening for drought tolerance, a drought-sensitive line, B73, and a drought-tolerant line, Lo964, were selected and stressed beginning at 14 days after pollination. Developing kernels were sampled 7 and 14 days after drought induction (DAI) from both stressed and irrigated plants. Comparative biochemical and metabolomic analyses profiled 409 differentially accumulated metabolites. Multivariate statistics and pathway analyses showed that drought stress induced an accumulation of simple sugars and polyunsaturated fatty acids and a decrease in amines, polyamines and dipeptides in B73. Conversely, sphingolipid, sterol, phenylpropanoid and dipeptide metabolites accumulated in Lo964 under drought stress. Drought stress also resulted in the greater accumulation of reactive oxygen species (ROS) and aflatoxin in kernels of B73 in comparison with Lo964 implying a correlation in their production. Overall, field drought treatments disordered a cascade of normal metabolic programming during development of maize kernels and subsequently caused oxidative stress. The glutathione and urea cycles along with the metabolism of carbohydrates and lipids for osmoprotection, membrane maintenance and antioxidant protection were central among the drought stress responses observed in developing kernels. These results also provide novel targets to enhance host drought tolerance and disease resistance through the use of biotechnologies such as transgenics and genome editing.
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