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Open research questions in GABA and Rice Research

142 gap statements mined from GABA and Rice Research papers in our 4.5M-paper local library, which holds 581 papers on the topic — drawn mostly from each paper's own stated research gap, future-work, challenge and limitation notes, and its abstract. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one.

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What the literature leaves open

  • The lack of understanding of how osmotic stress affects GAD2 expression in Listeria monocytogenes. The need to investigate the role of GadR in regulating GAD2 expression in response to osmotic stress.

    The glutamate decarboxylase system (GAD2) is activated by osmotic stress in a GadR-dependent manner in Listeria monocytogenes · 2026 · DOI

  • The genomic basis of L. plantarum's GABA production capacity remains incompletely resolved. The distribution of GABA-related genes and accessory drivers of phenotypes is not well understood.

    Global Genomic Landscapes of Lactiplantibacillus plantarum: Universal GABA Biosynthetic Capacity with Strain-Level Functional Diversity · 2025 · DOI

  • Current treatments for prostate cancer have limitations. There is a need for new therapeutic agents that can effectively target prostate cancer cells. The molecular mechanisms of butein's effect on prostate cancer cells are not fully understood.

    Effect of Butein, a Plant Polyphenol, on Apoptosis and Necroptosis of Prostate Cancer Cells in 2D and 3D Cultures · 2025 · DOI

  • The lack of understanding of GABA's mechanisms in diabetes management. The need for further research on the therapeutic implications of GABA in diabetes management. The gap in current research on the effects of GABA on organ dysfunctions associated with diabetes.

    Role of γ-Aminobutyric Acid (GABA) as an Inhibitory Neurotransmitter in Diabetes Management: Mechanisms and Therapeutic Implications · 2025 · DOI

  • The precise role and functional importance of GABA within the enteric nervous system remain unclear. There is a need to investigate the potential of LAB to produce GABA. The study aims to address the gap in knowledge on the probiotic potential of L. brevis CRAI.

    A Novel GABA-Producing Levilactobacillus brevis Strain Isolated from Organic Tomato as a Promising Probiotic · 2025 · DOI

  • Limited availability of GABA-rich foods. Need for efficient methods to increase GABA content in crops. Gap in understanding the effects of gene editing on GABA accumulation in tomatoes.

    Increasing γ-Aminobutyric Acid Content in Dwarf Cherry Tomato Using CRISPR/Cas9-Mediated Gene Editing · 2025 · DOI

  • It is produced during cucumber fermentation but is limited by the low intrinsic concentration of free glutamate.

    Enhancement of γ‐aminobutyric acid in fermented cucumbers · 2024 · DOI

  • Future research should focus on integrating GABA application with optimized water and nutrient management practices to explore its potential in high-efficiency and quality-oriented pumpkin production.

    Exogenous γ-aminobutyric acid promotes 2-acetyl-1-pyrroline biosynthesis by enriching glutamate and optimizing its metabolic flux in pumpkin · 2026 · DOI

  • Future research should explore the combined use of GABA and calcium to enhance the mechanisms plants use to handle heat stress. However, there is still a gap in understanding the influence of GABA and Ca on heat stress-induced changes advising plant stress mitigation.

    Foliar γ-aminobutyric acid and calcium synergistically enhance heat tolerance in strawberry via ROS scavenging and GABA shunt activation · 2026 · DOI

  • The lack of studies on the use of natural lactic acid bacteria as a starter culture for fermented products. The need to identify potential probiotic strains with high survival rates and adhesion ability.

    PHÂN LẬP VÀ ĐÁNH GIÁ ĐẶC TÍNH SINH HỌC CỦA VI KHUẨN LACTIC ĐƯỢC PHÂN LẬP TỪ NEM CHUA BẾN TRE · 2026 · DOI

  • The need for optimized fermentation conditions to achieve high-titre GABA production. The lack of understanding of the effects of physicochemical and nutritional parameters on GABA production by Enterococcus faecium.

    Coordinated Regulation of Glutamate-GABA Flux Enables High-Titre GABA Production in Enterococcus faecium · 2026 · DOI

  • The study aims to address the gap in understanding the effects of IAA on retrotransposon movement in rice. The study investigates the relationships among genetic mobility, plant development, and hormone levels.

    Investigation of the Effect of Indole Acetic Acid Concentrations on Retrotransposon Movement in Oryza sativa L. · 2026 · DOI

  • Information on the prevalence of rice allergy in Malaysia is limited. There is a need for updated population-level studies on rice allergy in Malaysia.

    Comparative immunoproteomic profiling of Malaysian rice varieties (MR219, MR269, and PadiU Putra) and their clinical reactivity in rice-allergic patients · 2026 · DOI

  • There is a need to improve the protein quality of maize, which is limited due to deficiencies in essential amino acids. Traditional processing approaches may not be effective in modifying the amino acid profile of maize.

    Effect of Non-Thermal Alkaline (Lime) Soaking on Amino Acid Profile of Maize (Zea mays L.): A Modified Nixtamalization Approach · 2026 · DOI

  • Investigate the effects of other food preservation methods on GadR-dependent GAD2 expression. Examine the response of other foodborne pathogens to osmotic stress and acid stress. Investigate the potential risks to food safety posed by GadR-dependent GAD2 expression in Listeria monocytogenes.

    The glutamate decarboxylase system (GAD2) is activated by osmotic stress in a GadR-dependent manner in Listeria monocytogenes · 2026 · DOI

  • The impact of water-deficit stress on cannabis plants can vary based on the cultivar, intensity of the stress, and timing of the stress events, - There is still some debate about the geographical origin of C.

    The Effects of Water-Deficit Stress on Cannabis sativa L. Development and Production of Secondary Metabolites: A Review · 2025 · DOI

  • Experimental Treatments Two experimental factors were applied in a factorial arrangement. The first factor was priming duration (P) using red guava (P. guajava L.) extract, consisting of four soaking periods: 6 h (P₁), 12 h (P₂), 18 h (P₃), and 24 h (P₄). The s factor was aeration during priming (A), comprising two levels: without aeration (A₀) and with continuous aeration supplied by an aquarium aerator (A₁).

    Effects of Red Guava Extract Seed Priming on Rice Viability and Vigor under Salinity Stress · 2026 · DOI

  • The negative correlation between oil and protein content in soybean varieties - The lack of high-yield, high-oil-content soybean varieties - The need for innovative breeding techniques to address the challenge of soybean…

    Improvement of Premium Oil Soybean Variety Heinong 551 with Integrating Conventional Hybridization and Gamma Radiation · 2025 · DOI

  • The study only examined the effects of high-temperature stress on Pacific oysters, - The study did not investigate the effects of other stressors on Pacific oysters, - The study used a limited number of oysters (36) in the high-temperature exposure…

    The Regulation of γ-Aminobutyric Acid on Antioxidative Defense Response of Pacific Oyster upon High-Temperature Stress · 2025 · DOI

  • Investigate the effects of other stressors on the antioxidative defense response of Pacific oysters, - Examine the role of other neurotransmitters and hormones in regulating the antioxidative defense response of Pacific oysters, - Study the effects of GABA on the antioxidative defense response of other aquatic…

    The Regulation of γ-Aminobutyric Acid on Antioxidative Defense Response of Pacific Oyster upon High-Temperature Stress · 2025 · DOI

  • Kashk, a traditional Iranian fermented dairy product derived from milk through controlled acidification and dehydration, and it represents an underexplored source of bioactive LAB strains.

    High-yield gamma-aminobutyric acid synthesis by wild-type Levilactobacillus brevis strains isolated from traditional Iranian Kashk · 2026 · DOI

  • Further evaluation of the long-term effects of the probiotic strain on human health. Assessment of the use of natural lactic acid bacteria as a starter culture for other fermented products.

    PHÂN LẬP VÀ ĐÁNH GIÁ ĐẶC TÍNH SINH HỌC CỦA VI KHUẨN LACTIC ĐƯỢC PHÂN LẬP TỪ NEM CHUA BẾN TRE · 2026 · DOI

  • Further studies on the optimization of fermentation conditions for large-scale GABA production. Investigation of the effects of other physicochemical and nutritional parameters on GABA production.

    Coordinated Regulation of Glutamate-GABA Flux Enables High-Titre GABA Production in Enterococcus faecium · 2026 · DOI

  • The study only evaluated the feasibility of incorporating dried watermeal into rice seasoning powder, - The study did not investigate the long-term effects of consuming WM-substituted rice seasoning powder, - The study had a limited sample…

    Evaluation of the Potential of Watermeal (Wolffia arrhiza L.) as a Plant-based Protein Boost for Rice Seasoning Powder · 2026 · DOI

  • Investigate the long-term effects of consuming WM-substituted rice seasoning powder, - Evaluate the feasibility of incorporating WM into other food products, - Study the effects of different WM substitution levels on the nutritional and sensory properties of rice seasoning…

    Evaluation of the Potential of Watermeal (Wolffia arrhiza L.) as a Plant-based Protein Boost for Rice Seasoning Powder · 2026 · DOI

Most-cited papers in GABA and Rice Research

Most recent work

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Open questions raised by papers listed on this page include: (1) The lack of understanding of how osmotic stress affects GAD2 expression in Listeria monocytogenes (“The glutamate decarboxylase system (GAD2) is activated by osmotic stress in a…”, 2026); (2) Future research should focus on integrating GABA application with optimized water and nutrient management practices to explore its potential in high-efficiency and quality-oriented pumpkin production (“Exogenous γ-aminobutyric acid promotes 2-acetyl-1-pyrroline biosynthesis by…”, 2026); (3) Future research should explore the combined use of GABA and calcium to enhance the mechanisms plants use to handle heat stress (“Foliar γ-aminobutyric acid and calcium synergistically enhance heat tolerance…”, 2026); (4) The lack of studies on the use of natural lactic acid bacteria as a starter culture for fermented products (“PHÂN LẬP VÀ ĐÁNH GIÁ ĐẶC TÍNH SINH HỌC CỦA VI KHUẨN LACTIC ĐƯỢC PHÂN LẬP TỪ NEM…”, 2026); (5) The lack of understanding of the effects of physicochemical and nutritional parameters on GABA production by Enterococcus faecium (“Coordinated Regulation of Glutamate-GABA Flux Enables High-Titre GABA…”, 2026). 142 gap statements have been mined from GABA and Rice Research papers in our 4.5M-paper local library, which holds 581 papers on the topic; the gaps come from whichever of those papers state one. They are mostly the research gaps the authors state and the papers' abstracts, plus future-work, limitations and challenges passages. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one, so you can read the original claim in context.

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