ArticlePLoS genetics2017
Spatio-temporal orientation of microtubules controls conical cell shape in Arabidopsis thaliana petals.
Article in PLoS genetics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.
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Who cites it
29 citing papers in PubMed, 65 citations in OpenAlex.
- Research Progress on Regulatory Mechanisms of Conical Cell Morphogenesis inPlants (Basel, Switzerland) · 2026Review
- 3D geometry and mechanics of a single apical stem cell ensure helically symmetric plant body in multicellular models.Frontiers in plant science · 2026Article
- Evolution of short trichomes and long hairs on Nigella petals through co-option of bHLH and non-MIXTA MYB genes.Nature communications · 2025Article
- CRABS CLAW-independent floral nectary development in Penstemon barbatus.American journal of botany · 2025Article
- Carnivorous Nepenthes pitcher plants combine common developmental processes to make a complex epidermal trapping surface.Annals of botany · 2025Article
- Building beauty: Understanding how hormone signaling regulates petal patterning and morphogenesis.The Plant journal : for cell and molecular biology · 2025Review
- A 3-component module maintains sepal flatness in Arabidopsis.Current biology : CB · 2024Article
- Cell layer-specific expression of the homeotic MADS-box transcription factor PhDEF contributes to modular petal morphogenesis in petunia.The Plant cell · 2024Article
- Microtubule-associated phase separation of MIDD1 tunes cell wall spacing in xylem vessels in Arabidopsis thaliana.Nature plants · 2024Article
- New insights into the functions and regulations of MAP215/MOR1 and katanin, two conserved microtubule-associated proteins in Arabidopsis.Plant signaling & behavior · 2023Article
- Microtubule-associated protein SlMAP70 interacts with IQ67-domain protein SlIQD21a to regulate fruit shape in tomato.The Plant cell · 2023Article
- Cellulose assembles into helical bundles of uniform handedness in cell walls with abnormal pectin composition.The Plant journal : for cell and molecular biology · 2023Article
- Microtubule Regulation in Plants: From Morphological Development to Stress Adaptation.Biomolecules · 2023Review
- Barley RIC157, a potential RACB scaffold protein, is involved in susceptibility to powdery mildew.Plant molecular biology · 2023Article
- Genome-wide analysis ofFrontiers in plant science · 2023Article
- Review
- Article
- Petal Cellular Identities.Frontiers in plant science · 2021Review
- The Morphological Diversity of Plant Organs: Manipulating the Organization of Microtubules May Do the Trick.Frontiers in cell and developmental biology · 2021Article
- Article
Corrections and comments
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Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The physiological functions of epidermal cells are largely determined by their diverse morphologies. Most flowering plants have special conical-shaped petal epidermal cells that are thought to influence light capture and reflectance, and provide pollinator grips, but the molecular mechanisms controlling conical cell shape remain largely unknown. Here, we developed a live-confocal imaging approach to quantify geometric parameters of conical cells in Arabidopsis thaliana (A. thaliana). Through genetic screens, we identified katanin (KTN1) mutants showing a phenotype of decreased tip sharpening of conical cells. Furthermore, we demonstrated that SPIKE1 and Rho of Plants (ROP) GTPases were required for the final shape formation of conical cells, as KTN1 does. Live-cell imaging showed that wild-type cells exhibited random orientation of cortical microtubule arrays at early developmental stages but displayed a well-ordered circumferential orientation of microtubule arrays at later stages. By contrast, loss of KTN1 prevented random microtubule networks from shifting into well-ordered arrays. We further showed that the filamentous actin cap, which is a typical feature of several plant epidermal cell types including root hairs and leaf trichomes, was not observed in the growth apexes of conical cells during cell development. Moreover, our genetic and pharmacological data suggested that microtubules but not actin are required for conical cell shaping. Together, our results provide a novel imaging approach for studying petal conical cell morphogenesis and suggest that the spatio-temporal organization of microtubule arrays plays crucial roles in controlling conical cell shape.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.