Elliot M. Meyerowitz
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View article: Plasticity and invariance of Arabidopsis inflorescence and floral shoot apical meristems in response to mineral nutrients
Plasticity and invariance of Arabidopsis inflorescence and floral shoot apical meristems in response to mineral nutrients Open
In many species, floral organ production is invariant while flower production rate can be plastic. This allows plants to adapt flower number to their environment whilst maintaining a constant flower structure. The CLAVATA/WUSCHEL feedback …
View article: Comprehensive annotations of alternative splicing, lncRNAs, and circRNAs in seven species of flowering plants
Comprehensive annotations of alternative splicing, lncRNAs, and circRNAs in seven species of flowering plants Open
The successful occupation of terrestrial habitats by early plants was catalyzed by the adaptive evolution of new organs able to supply water and compensate for the gravitational impact under changing land conditions. Because plants are ses…
View article: Single-nucleus transcriptomics resolves differentiation dynamics between shoot stem cells and primary stem
Single-nucleus transcriptomics resolves differentiation dynamics between shoot stem cells and primary stem Open
The shoot apical meristem (SAM), located at the plant apex, is accountable for the formation of above-ground organs such as leaves, stem and flowers. Although transcriptional profiling has elucidated some cell-types observed within stems o…
View article: Rapid evolution of gene expression patterns in flowering plants
Rapid evolution of gene expression patterns in flowering plants Open
Phenotypic differences between species are largely driven by changes in both protein-coding sequence and gene expression 1 . The evolutionary history of angiosperms (flowering plants) is characterised by a highly accelerated rate of divers…
View article: Xyloglucan deficiency leads to a reduction in turgor pressure and changes in cell wall properties, affecting early seedling establishment
Xyloglucan deficiency leads to a reduction in turgor pressure and changes in cell wall properties, affecting early seedling establishment Open
Xyloglucan is believed to play a significant role in cell wall mechanics of dicot plants. Surprisingly, Arabidopsis plants defective in xyloglucan biosynthesis exhibit nearly normal growth and development. We investigated a mutant line, cs…
View article: Macroscopic waves, biological clocks and morphogenesis driven by light in a giant unicellular green alga
Macroscopic waves, biological clocks and morphogenesis driven by light in a giant unicellular green alga Open
A hallmark of self-organisation in living systems is their capacity to stabilise their own dynamics, often appearing to anticipate and act upon potential outcomes. Caulerpa brachypus is a marine green alga consisting of differentiated orga…
View article: Plants having modified response to ethylene
Plants having modified response to ethylene Open
The invention includes transformed plants having at least one cell transformed with a modified ETR nucleic acid. Such plants have a phenotype characterized by a decrease in the response of at least one transformed plant cell to ethylene as…
View article: Cytokinins regulate spatially-specific ethylene production to control root growth in<i>Arabidopsis</i>
Cytokinins regulate spatially-specific ethylene production to control root growth in<i>Arabidopsis</i> Open
The two principal growth regulators cytokinins and ethylene are known to interact in the regulation of plant growth. However, information about underlying molecular mechanism and positional specificity of the cytokinin/ethylene crosstalk i…
View article: Dynamical states of self-organised waves in a giant unicellular green alga
Dynamical states of self-organised waves in a giant unicellular green alga Open
Associated manuscript:Afik, Liu and Meyerowitz (2023) : “Macroscopic waves, biological clocks and morphogenesis driven by light in a giant unicellular green alga.” bioRxiv. https://doi.org/10.1101/2023.02.22.529174.AbstractA hallmark of se…
View article: Tethering of cellulose synthase to microtubules dampens mechano-induced cytoskeletal organization in Arabidopsis pavement cells
Tethering of cellulose synthase to microtubules dampens mechano-induced cytoskeletal organization in Arabidopsis pavement cells Open
Mechanical forces control development in plants and animals, acting as cues in pattern formation and as the driving force of morphogenesis. In mammalian cells, molecular assemblies residing at the interface of the cell membrane and the ext…
View article: Cellulose Synthase Tethering Attenuates Mechano-induced Microtubule Organization in pavement cells
Cellulose Synthase Tethering Attenuates Mechano-induced Microtubule Organization in pavement cells Open
Mechanical forces control development in plants and animals, acting as cues in pattern formation and as the driving force of morphogenesis. In mammalian cells, molecular assemblies residing at the interface of the cell membrane and the ext…
View article: Cellulose Synthase Tethering Attenuates Mechano-induced Microtubule Organization in pavement cells
Cellulose Synthase Tethering Attenuates Mechano-induced Microtubule Organization in pavement cells Open
Mechanical forces control development in plants and animals, acting as cues in pattern formation and as the driving force of morphogenesis. In mammalian cells, molecular assemblies residing at the interface of the cell membrane and the ext…
View article: Cryo-electron tomography of the onion cell wall shows bimodally oriented cellulose fibers and reticulated homogalacturonan networks
Cryo-electron tomography of the onion cell wall shows bimodally oriented cellulose fibers and reticulated homogalacturonan networks Open
One hallmark of plant cells is their cell wall. They protect cells against the environment and high turgor and mediate morphogenesis through the dynamics of their mechanical and chemical properties. The walls are a complex polysaccharidic …
View article: Bimodally oriented cellulose fibers and reticulated homogalacturonan networks - A direct visualization of Allium cepa primary cell walls
Bimodally oriented cellulose fibers and reticulated homogalacturonan networks - A direct visualization of Allium cepa primary cell walls Open
One hallmark of plant cells is their pecto-cellulosic cell walls. They protect cells against the environment and high turgor and mediate morphogenesis through the dynamics of their mechanical and chemical properties. The walls are a comple…
View article: Focused Ion Beam Milling and Cryo-electron Tomography Methods to Study the Structure of the Primary Cell Wall in Allium cepa
Focused Ion Beam Milling and Cryo-electron Tomography Methods to Study the Structure of the Primary Cell Wall in Allium cepa Open
Cryo-electron tomography (cryo-ET) is a formidable technique to observe the inner workings of vitrified cells at a nanometric resolution in near-native conditions and in three-dimensions. One consequent drawback of this technique is the sa…
View article: Peaking into the plant cell wall using cryo-FIB milling and electron cryo-tomography
Peaking into the plant cell wall using cryo-FIB milling and electron cryo-tomography Open
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View article: Molecular mechanism of cytokinin-activated cell division in <i>Arabidopsis</i>
Molecular mechanism of cytokinin-activated cell division in <i>Arabidopsis</i> Open
Cell cycle regulation The hormone cytokinin regulates various aspects of plant development and physiology, largely by managing cell proliferation. Yang et al. show that cytokinin promotes nuclear localization of the transcription factor MY…
View article: Structure of the Bacterial Cellulose Ribbon and Its Assembly-Guiding Cytoskeleton by Electron Cryotomography
Structure of the Bacterial Cellulose Ribbon and Its Assembly-Guiding Cytoskeleton by Electron Cryotomography Open
This work’s relevance for the microbiology community is twofold. It delivers for the first time high-resolution near-native snapshots of Gluconacetobacter spp. (previously Komagataeibacter spp.) in the process of cellulose ribbon synthesis…
View article: The Impact of Arabidopsis on Human Health: Diversifying Our Portfolio
The Impact of Arabidopsis on Human Health: Diversifying Our Portfolio Open
Studies of the model plant Arabidopsis thaliana may seem to have little impact on advances in medical research, yet a survey of the scientific literature shows that this is a misconception. Many discoveries with direct relevance to human h…
View article: A multiscale analysis of early flower development in Arabidopsis provides an integrated view of molecular regulation and growth control
A multiscale analysis of early flower development in Arabidopsis provides an integrated view of molecular regulation and growth control Open
The link between gene regulation and morphogenesis of multicellular organisms is a fundamental problem in biology. We address this question in the floral meristem of Arabidopsis , which generates new tissues and organs through complex chan…
View article: The Overlapping and Distinct Roles of HAM Family Genes in Arabidopsis Shoot Meristems
The Overlapping and Distinct Roles of HAM Family Genes in Arabidopsis Shoot Meristems Open
In Arabidopsis shoot apical meristems (SAMs), a well-characterized regulatory loop between WUSCHEL (WUS) and CLAVATA3 (CLV3) maintains stem cell homeostasis by regulating the balance between cell proliferation and cell differentiation. WUS…
View article: Cytoskeletal organization in isolated plant cells under geometry control
Cytoskeletal organization in isolated plant cells under geometry control Open
Significance The cytoskeleton, a network of polymers including microtubules and actin, supports many functions in cells. In plants, the cytoskeleton orientation is an important parameter dictating the direction of cell growth. While light,…
View article: Research data supporting "Cytoskeletal organisation in isolated plant cells under geometry control"
Research data supporting "Cytoskeletal organisation in isolated plant cells under geometry control" Open
This data is made of z-stacks obtain by confocal microscopy. In this data set, you will find six folders. Each folder is named after the figure number in the original publication. One folder corresponds to one figure of the paper with the …
View article: Structure of the bacterial cellulose ribbon and its assembly-guiding cytoskeleton by electron cryotomography
Structure of the bacterial cellulose ribbon and its assembly-guiding cytoskeleton by electron cryotomography Open
Cellulose is a widespread component of bacterial biofilms, where its properties of exceptional water retention, high tensile strength and stiffness prevents dehydration and mechanical disruption of the biofilm. Bacteria in the Gluconacetob…
View article: J Regularization Improves Imbalanced Multiclass Segmentation
J Regularization Improves Imbalanced Multiclass Segmentation Open
We propose a new loss formulation to further advance the multiclass segmentation of cluttered cells under weakly supervised conditions. When adding a Youden's J statistic regularization term to the cross entropy loss we improve the separat…