Siobhan A. Braybrook
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View article: The maize preligule band is subdivided into distinct domains with contrasting cellular properties prior to ligule outgrowth
The maize preligule band is subdivided into distinct domains with contrasting cellular properties prior to ligule outgrowth Open
The maize ligule is an epidermis-derived structure that arises from the preligule band (PLB) at a boundary between the blade and sheath. A hinge-like auricle also develops immediately distal to the ligule and contributes to blade angle. He…
View article: The maize preligule band is subdivided into distinct domains with contrasting cellular properties prior to ligule outgrowth
The maize preligule band is subdivided into distinct domains with contrasting cellular properties prior to ligule outgrowth Open
The maize ligule is a fringe of epidermis-derived tissue, which arises from the preligule band (PLB) at a boundary between the blade and sheath. A hinge-like auricle also develops immediately distal to the ligule and contributes to blade a…
View article: Fake news blues: A GUS staining protocol to reduce false‐negative data
Fake news blues: A GUS staining protocol to reduce false‐negative data Open
The β‐glucuronidase gene, uidA ( GUS ), has remained a favorite reporter gene in plants since its introduction in 1987 for its stability and versatility in a variety of fluorometric, spectrophotometric, and histochemical techniques. One of…
View article: Identification and selection of optimal reference genes for qPCR-based gene expression analysis in Fucus distichus under various abiotic stresses
Identification and selection of optimal reference genes for qPCR-based gene expression analysis in Fucus distichus under various abiotic stresses Open
Quantitative gene expression analysis is an important tool in the scientist’s belt. The identification of evenly expressed reference genes is necessary for accurate quantitative gene expression analysis, whether by traditional RT-PCR (reve…
View article: Developmental Modulation of Root Cell Wall Architecture Confers Resistance to an Oomycete Pathogen
Developmental Modulation of Root Cell Wall Architecture Confers Resistance to an Oomycete Pathogen Open
View article: Identification and selection of optimal reference genes for qPCR-based gene expression analysis in<i>Fucus distichus</i>under various abiotic stresses
Identification and selection of optimal reference genes for qPCR-based gene expression analysis in<i>Fucus distichus</i>under various abiotic stresses Open
Quantitative gene expression analysis is an important tool in the scientist’s belt. The identification of evenly expressed reference genes is necessary for accurate quantitative gene expression analysis, whether by traditional RT-PCR (reve…
View article: Morphological Plant Modeling: Unleashing Geometric and Topological Potential within the Plant Sciences
Morphological Plant Modeling: Unleashing Geometric and Topological Potential within the Plant Sciences Open
The geometries and topologies of leaves, flowers, roots, shoots, and their arrangements have fascinated plant biologists and mathematicians alike. As such, plant morphology is inherently mathematical in that it describes plant form and arc…
View article: Growth of the<i>Fucus</i>embryo: insights into wall-mediated cell expansion through mechanics and transcriptomics
Growth of the<i>Fucus</i>embryo: insights into wall-mediated cell expansion through mechanics and transcriptomics Open
Morphogenesis in walled organisms represents a highly controlled process that involves cell proliferation and expansion; cell growth is regulated through changes in the structure and mechanics of the cells’ walls. Despite taking different …
View article: Auxin and Organogenesis: Initiation of Organs and Nurturing a Scientific Spirit
Auxin and Organogenesis: Initiation of Organs and Nurturing a Scientific Spirit Open
When I was in college, we were taught that auxin positions new organs at the shoot apex. My instructors at the University of Guelph were giving us cutting-edge information: this hypothesis was first reported by Reinhardt, Mandel, and Kuhle…
View article: On Pectin Methyl-esterification: Implications for<i>In vitro</i>and<i>In vivo</i>Viscoelasticity
On Pectin Methyl-esterification: Implications for<i>In vitro</i>and<i>In vivo</i>Viscoelasticity Open
Pectin is a major component of the primary plant cell wall and is important for cell expansion. However, the relationship between its chemistry and mechanical properties is not fully understood, especially in vivo . In this study, a protoc…
View article: Of puzzles and pavements: a quantitative exploration of leaf epidermal cell shape
Of puzzles and pavements: a quantitative exploration of leaf epidermal cell shape Open
Summary Epidermal cells of leaves are diverse: tabular pavement cells, trichomes, and stomatal complexes. Pavement cells from the monocot Zea mays (maize) and the eudicot Arabidopsis thaliana (Arabidopsis) have highly undulate anticlinal w…
View article: Anisotropic growth is achieved through the additive mechanical effect of material anisotropy and elastic asymmetry
Anisotropic growth is achieved through the additive mechanical effect of material anisotropy and elastic asymmetry Open
Fast directional growth is a necessity for the young seedling; after germination, it needs to quickly penetrate the soil to begin its autotrophic life. In most dicot plants, this rapid escape is due to the anisotropic elongation of the hyp…
View article: Author response: Anisotropic growth is achieved through the additive mechanical effect of material anisotropy and elastic asymmetry
Author response: Anisotropic growth is achieved through the additive mechanical effect of material anisotropy and elastic asymmetry Open
Article Figures and data Abstract eLife digest Introduction Results Discussion Materials and methods Appendix Data availability References Decision letter Author response Article and author information Metrics Abstract Fast directional gro…
View article: Of puzzles and pavements: a quantitative exploration of leaf epidermal cell shape
Of puzzles and pavements: a quantitative exploration of leaf epidermal cell shape Open
Summary The epidermal cells of leaves lend themselves readily to observation and display many shapes and types: tabular pavement cells, complex trichomes, and stomatal complexes 1 . Pavement cells from Zea mays (maize) and Arabidopsis thal…
View article: Anisotropic growth is achieved through the additive mechanical effect of material anisotropy and elastic asymmetry
Anisotropic growth is achieved through the additive mechanical effect of material anisotropy and elastic asymmetry Open
Fast directional growth is a necessity for the young seedling: after germination, the seedling needs to quickly reach through the soil to begin its autotrophic life. In most dicot plants, this rapid escape is due to the anisotropic elongat…
View article: An Automated Confocal Micro-Extensometer Enables in Vivo Quantification of Mechanical Properties with Cellular Resolution
An Automated Confocal Micro-Extensometer Enables in Vivo Quantification of Mechanical Properties with Cellular Resolution Open
How complex developmental-genetic networks are translated into organs with specific 3D shapes remains an open question. This question is particularly challenging because the elaboration of specific shapes is in essence a question of mechan…
View article: Branched Pectic Galactan in Phloem-Sieve-Element Cell Walls: Implications for Cell Mechanics
Branched Pectic Galactan in Phloem-Sieve-Element Cell Walls: Implications for Cell Mechanics Open
A major question in plant biology concerns the specification and functional differentiation of cell types. This is in the context of constraints imposed by networks of cell walls that both adhere cells and contribute to the form and functi…
View article: Towards an understanding of spiral patterning in the Sargassum muticum shoot apex
Towards an understanding of spiral patterning in the Sargassum muticum shoot apex Open
In plants and parenchymatous brown algae the body arises through the activity of an apical meristem (a niche of cells or a single cell). The meristem produces lateral organs in specific patterns, referred to as phyllotaxis. In plants, two …
View article: Acid growth: an ongoing trip
Acid growth: an ongoing trip Open
Since its first formulation almost 50 years ago, acid growth has had a chequered past complicated by utilization of diverse species and organs for testing alongside necessary but coarse methodology. Within the past 25 years, we have gained…
View article: An automated confocal micro-extensometer enables in vivo quantification of mechanical properties with cellular resolution
An automated confocal micro-extensometer enables in vivo quantification of mechanical properties with cellular resolution Open
How complex developmental-genetic networks are translated into organs with specific 3D shapes remains an open question. This question is particularly challenging because the elaboration of specific shapes is in essence a question of mechan…
View article: Plant Development: Lessons from Getting It Twisted
Plant Development: Lessons from Getting It Twisted Open
View article: Morphological Plant Modeling: Unleashing Geometric and Topological Potential within the Plant Sciences
Morphological Plant Modeling: Unleashing Geometric and Topological Potential within the Plant Sciences Open
The geometries and topologies of leaves, flowers, roots, shoots, and their arrangements have fascinated plant biologists and mathematicians alike. As such, plant morphology is inherently mathematical in that it describes plant form and arc…
View article: Towards an understanding of spiral patterning in the<i>Sargassum muticum</i>shoot apex
Towards an understanding of spiral patterning in the<i>Sargassum muticum</i>shoot apex Open
In plants and parenchymatous brown algae the body arises through the activity of an apical meristem (a niche of cells or a single cell). The meristem produces lateral organs in specific patterns, referred to as phyllotaxis. In plants, two …
View article: Morphological plant modeling: Unleashing geometric and topological potential within the plant sciences
Morphological plant modeling: Unleashing geometric and topological potential within the plant sciences Open
Plant morphology is inherently mathematical in that morphology describes plant form and architecture with geometrical and topological descriptors. The geometries and topologies of leaves, flowers, roots, shoots and their spatial arrangemen…
View article: Shifting foundations: the mechanical cell wall and development
Shifting foundations: the mechanical cell wall and development Open
The cell wall has long been acknowledged as an important physical mediator of growth in plants. Recent experimental and modelling work has brought the importance of cell wall mechanics into the forefront again. These data have challenged e…
View article: How to let go: pectin and plant cell adhesion
How to let go: pectin and plant cell adhesion Open
Plant cells do not, in general, migrate. They maintain a fixed position relative to their neighbors, intimately linked through growth and differentiation. The mediator of this connection, the pectin-rich middle lamella, is deposited during…
View article: Tuning of pectin methylesterification: consequences for cell wall biomechanics and development
Tuning of pectin methylesterification: consequences for cell wall biomechanics and development Open
View article: Measuring the mechanical properties of plant cells by combining micro-indentation with osmotic treatments
Measuring the mechanical properties of plant cells by combining micro-indentation with osmotic treatments Open
Growth in plants results from the interaction between genetic and signalling networks and the mechanical properties of cells and tissues. There has been a recent resurgence in research directed at understanding the mechanical aspects of gr…
View article: Kinesin-4 Functions in Vesicular Transport on Cortical Microtubules and Regulates Cell Wall Mechanics during Cell Elongation in Plants
Kinesin-4 Functions in Vesicular Transport on Cortical Microtubules and Regulates Cell Wall Mechanics during Cell Elongation in Plants Open