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Open research questions in Botanical Research and Applications

130 gap statements mined from Botanical Research and Applications papers in our 4.5M-paper local library, which holds 571 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 development and secretion-release mechanisms of secretory cavities are not well understood. Prior work has not fully elucidated the origin and development of secretory cavities in plants.

    Secretory Cavity Development and Epidermal Exudation Pathways in Fruits of Ruta graveolens L. (Rutaceae) · 2026 · DOI

  • The study notes that previous attempts to use ITS sequences were considered unsuccessful due to the presence of pseudogenic copies. The paper aims to address this gap by analyzing the functional ITS1-5.8S rDNA–ITS2 region.

    Nuclear Ribosomal ITS1–5.8S rDNA-ITS2 Region as a Phylogenetic Marker for Selenicereus grandiflorus and Related Species (Cactaceae: Cactoideae: Phyllocacteae) · 2026 · DOI

  • The research required the development of a suitable extraction procedure to extract the investigated material. The study needed to overcome the complexity of analyzing the phytochemical compositions and associated biological activities of six betalain-rich plant matrices.

    Relationships between betalains, phenolic compounds and bioactivity in selected plant matrices · 2026 · DOI

  • The relative contributions of betalains and co-occurring polyphenols to antiglycation and enzyme inhibitory activities remain insufficiently understood. There is a lack of understanding of the importance of phytochemical composition in determining the functional properties of selected plant matrices.

    Relationships between betalains, phenolic compounds and bioactivity in selected plant matrices · 2026 · DOI

  • Natural food colourants are often unstable under environmental stressors such as pH fluctuations, heat, light, and oxygen. The degradation of colourants can be catalysed by trace metals such as iron and copper. The paper identifies the need to develop strategies to prevent discolouration and preserve overall product quality.

    Impact of Conventional and Advanced Techniques on Stability of Natural Food Colourants · 2025 · DOI

  • The study does not provide a comparison with existing detection methods. The experiment was conducted using a limited number of strawberry samples. The study relies on a specific type of agricultural waste (sugarcane bagasse and beet root waste).

    A Novel Natural Chromogenic Visual and Luminescent Sensor Platform for Multi-Target Analysis in Strawberries and Shape Memory Applications · 2025 · DOI

  • The need to optimize the conditions for betalain extraction and conservation to achieve the desired color and stability.

    Conservation Analysis and Colorimetric Characterization of Betalain Extracts from the Peel of Red Beetroot, Golden Beetroot, and Prickly Pear Applied to Cottage Cheese · 2025 · DOI

  • Physical damage during harvesting and transportation can affect the fruit's quality. The need to maintain the fruit's quality and extend its shelf life while meeting consumer demand.

    Quality Preservation and Shelf-Life Extension of Prickly Pear (Opuntia ficus-indica L. Mill) Using Edible Coatings · 2025 · DOI

  • The impact of climate change on Cactaceae species in the Brazilian Atlantic Forest is not well understood. There is a lack of studies on the effects of temperature and salt stress on C. fernambucensis seed germination. The study aims to fill this gap by investigating the combined effects of temperature and salt stress on the species.

    Effects of Temperature and Salt Stress on Cereus fernambucensis Seed Germination · 2025 · DOI

  • The need for natural polysaccharide excipients in pharmaceutical formulations. The lack of understanding of the unique properties and potential applications of Opuntia ficus-indica mucilage.

    EXTRACTION AND FUNCTIONAL APPLICATIONS OF OPUNTIA FICUS-INDICA MUCILAGE IN MATRIX PREPARATION · 2026 · DOI

  • The lack of studies on the use of Opuntia streptacantha fruit peels as a source of antioxidant compounds. The need for functional foods that promote the health of the regional population.

    Antioxidant Ice Cream from Opuntia streptacantha Fruit Peel: Development and Characterization · 2026 · DOI

  • Further studies can investigate the genetic basis of sugar accumulation in pitaya. Research can focus on developing strategies for improving fruit quality. The study's findings can be used to inform breeding programs aimed at improving sugar content in pitaya.

    Sucrose synthase cleavage dominance underpins high-sugar phenotype in pitaya (Hylocereus spp.): a multi-genotype study integrating morphology, spatial sugar profiling, and enzyme activities · 2026 · DOI

  • Limited understanding of the relationship between sucrose-metabolizing enzyme activities and sugar accumulation in pitaya.

    Sucrose synthase cleavage dominance underpins high-sugar phenotype in pitaya (Hylocereus spp.): a multi-genotype study integrating morphology, spatial sugar profiling, and enzyme activities · 2026 · DOI

  • Limited light transmission and micronutrient constraints were identified as challenges in using OpDcm as a nutrient source. Potential limitations in P, Mg, and Fe were noted, which could affect pigment synthesis and photosynthetic efficiency. The study highlights the need to correct certain nutrient deficiencies through targeted supplementation to enhance overall productivity.

    Valorization of Aged Opuntia-Derived Digestate as a Sustainable Nutrient Source for Photosynthetic Microbial Consortia · 2026 · DOI

  • Investigate the long-term effects of temperature and salt stress on C. fernambucensis seedlings. Examine the effects of other environmental factors, such as light and nutrient availability, on C. fernambucensis seed germination and seedling growth. Conduct field experiments to validate the results obtained in the controlled environment.

    Effects of Temperature and Salt Stress on Cereus fernambucensis Seed Germination · 2025 · DOI

  • No statistically significant differences were detected among irrigation treatments for biochemical traits, - Loss of raw replicate data limited variability quantification, - Results should be interpreted as descriptive due to data limitations, - Further validation with independent datasets is necessary for wider operational…

    A Non-Destructive Methodological Approach for Modeling Continuous Drought Stress Dynamics in Opuntia ficus-indica Using Hyperspectral and UAV RGB Imagery · 2026 · DOI

  • Validation with independent datasets, - Application to other crop species, - Integration with other sensing technologies, - Investigation of long-term effects of drought…

    A Non-Destructive Methodological Approach for Modeling Continuous Drought Stress Dynamics in Opuntia ficus-indica Using Hyperspectral and UAV RGB Imagery · 2026 · DOI

  • Investigating the scalability of the CMC-Betalains-N-CQD film production. Exploring the application of the CMC-Betalains-N-CQD film in other food packaging scenarios. Developing more sensitive and selective detection methods for various contaminants.

    A Novel Natural Chromogenic Visual and Luminescent Sensor Platform for Multi-Target Analysis in Strawberries and Shape Memory Applications · 2025 · DOI

  • Further research on the use of betalain extracts in other food products, - Investigation of the effects of betalain extracts on human health, - Study of the stability of betalain extracts under different storage…

    Conservation Analysis and Colorimetric Characterization of Betalain Extracts from the Peel of Red Beetroot, Golden Beetroot, and Prickly Pear Applied to Cottage Cheese · 2025 · DOI

  • Further research could investigate the effects of other edible coatings on the quality of prickly pears, - The study could be extended to evaluate the effects of edible coatings on prickly pears stored at different temperatures and humidity levels, - The potential for edible coatings to extend the shelf life of prickly pears could be further…

    Quality Preservation and Shelf-Life Extension of Prickly Pear (Opuntia ficus-indica L. Mill) Using Edible Coatings · 2025 · DOI

  • The introduction of pathogens, such as the cactus virus X, during the massive introduction of plant material, - The need to evaluate the behavior of pitahaya in different latitudes and cultivation systems, - The importance of harvesting the fruit at the optimal time of ripening to maintain…

    Yellow Pitahaya (Selenicereus megalanthus Haw.): The Less Known of the Pitahayas · 2025 · DOI

  • Research on yellow pitahaya is very scarce, - No data are available in the literature about sugars and organic acid composition in yellow pitahaya, - Few reports exist on pitahaya during cold storage compared to yellow…

    Yellow Pitahaya (Selenicereus megalanthus Haw.): The Less Known of the Pitahayas · 2025 · DOI

  • Investigate the effects of environmental factors on bract coloration, - Analyze the expression of more genes associated with color changes, - Study the regulatory mechanisms of betalain…

    Analysis of Pigmentation Changes in Bracts of Bougainvillea × buttiana ‘Miss Manila’ During Different Developmental Periods · 2025 · DOI

  • Further studies on the extraction and characterization of Opuntia ficus-indica mucilage. Investigations into the potential applications of the mucilage in pharmaceutical formulations. Development of controlled drug delivery systems using the mucilage.

    EXTRACTION AND FUNCTIONAL APPLICATIONS OF OPUNTIA FICUS-INDICA MUCILAGE IN MATRIX PREPARATION · 2026 · DOI

  • Targeted supplementation to enhance overall productivity, - Valorization of aged or expired digestates, - Exploration of alternative culture media for microalgae…

    Valorization of Aged Opuntia-Derived Digestate as a Sustainable Nutrient Source for Photosynthetic Microbial Consortia · 2026 · DOI

Most-cited papers in Botanical Research and Applications

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Open questions raised by papers listed on this page include: (1) The development and secretion-release mechanisms of secretory cavities are not well understood (“Secretory Cavity Development and Epidermal Exudation Pathways in Fruits of Ruta…”, 2026); (2) The relative contributions of betalains and co-occurring polyphenols to antiglycation and enzyme inhibitory activities remain insufficiently understood (“Relationships between betalains, phenolic compounds and bioactivity in selected…”, 2026); (3) The lack of understanding of the unique properties and potential applications of Opuntia ficus-indica mucilage (“EXTRACTION AND FUNCTIONAL APPLICATIONS OF OPUNTIA FICUS-INDICA MUCILAGE IN…”, 2026); (4) The lack of studies on the use of Opuntia streptacantha fruit peels as a source of antioxidant compounds (“Antioxidant Ice Cream from Opuntia streptacantha Fruit Peel: Development and…”, 2026); (5) The impact of climate change on Cactaceae species in the Brazilian Atlantic Forest is not well understood (“Effects of Temperature and Salt Stress on Cereus fernambucensis Seed Germination”, 2025). 130 gap statements have been mined from Botanical Research and Applications papers in our 4.5M-paper local library, which holds 571 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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