ORIGINAL RESEARCH article
Front. Plant Sci.
Sec. Plant Cell Biology
Volume 16 - 2025 | doi: 10.3389/fpls.2025.1626044
Kallfu and Wenutram: Two Chilean flax seed varieties with contrasted mucilage production, composition and structure
Provisionally accepted
Susana Grant-Grant1
Dayan Sanhueza1,2
Pablo Sepúlveda-Orellana1,2,3
Sebastián Zúñiga-Pozo1,3
J. Sebastian Contreras-Riquelme1,4,5
José M Alvarez1,4,5
Asier Largo-Gosens6
Susana Saez-Aguayo1,2,7*- 1Centro de Biotecnología Vegetal, Universidad Andres Bello, Santiago, Chile
- 2Millenium Nucleus for the Development of Super Adaptable Plants (MN-SAP), Santiago, Santiago Metropolitan Region (RM), Chile
- 3Programa de Doctorado en Biotecnología, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
- 4Millennium Institute for Integrative Biology (iBio), Santiago, Santiago Metropolitan Region (RM), Chile
- 5Millennium Nucleus in Data Science for Plant Resilience (PhytoLearning), Santiago, Chile
- 6Área de Fisiología Vegetal, Departamento de Ingeniería y Ciencias Agrarias, Universidad de León, E-24071, León, Spain, Leon, Spain
- 7Anillo de Investigación en Ciencia y Tecnología - Chilean Fruits Cell Wall Components as Biotechnological Resources (CHICOBIO) ACT210025, Talca, Chile
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Seed mucilage, rich in complex polysaccharides, serves diverse functions upon hydration, including soil adhesion, dispersal, and stress protection, making it valuable for food and pharmaceutical applications. Its water-holding capacity aids in food moisture retention, while its emulsifying properties enable various culinary and pharmaceutical uses. Mucilage from flax seeds, offers potential as a bioencapsulation material, with studies exploring its role in drug and probiotic delivery systems targeting the gastrointestinal tract.Through a combination of biochemical, cytological, and proteomic analyses, we compare two Chilean cultivars Kallfu and Wenutram, that have different mucilage content. Our results reveal that flaxseed mucilage (FM) is predominantly composed of branched RG-I, with variations in RG-I branching patterns observed between cultivars. Additionally, minor constituents such as HG and RG-II contribute to mucilage structure. Proteomic analysis reveals a diverse array of proteins in FM, with implications for mucilage modification. Importantly, differences in mucilage content and composition between cultivars underscore the complexity of FM and its functional implications.These findings provide valuable insights into how the composition of FM can affects it structure and release.
Keywords: Seed mucilage, Flaxseed mucilage, Mucilage structure, Rhamnogalacturonan-I, Rhamnogalacturonan-II, cell wall proteins, Flaxseed Mucilage Proteomic
Received: 20 May 2025; Accepted: 26 Jul 2025.
Copyright: © 2025 Grant-Grant, Sanhueza, Sepúlveda-Orellana, Zúñiga-Pozo, Contreras-Riquelme, Alvarez, Largo-Gosens and Saez-Aguayo. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Susana Saez-Aguayo, Centro de Biotecnología Vegetal, Universidad Andres Bello, Santiago, Chile
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