ArticleJournal of experimental botany2019
Arabidopsis IPGA1 is a microtubule-associated protein essential for cell expansion during petal morphogenesis.
Article in Journal of experimental botany, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed, 21 citations in OpenAlex.
- Research Progress on Regulatory Mechanisms of Conical Cell Morphogenesis inPlants (Basel, Switzerland) · 2026Review
- Genome-wide association in quality protein maize: identifying key loci for yield enhancement.Journal of applied genetics · 2026Article
- The N-terminal domain of COMPANION OF CELLULOSE SYNTHASE1 promotes microtubule array formation in Arabidopsis.Plant physiology · 2025Article
- Genome-wide identification, characterization, and expression analysis of BZR transcription factor family in Gerbera hybrida.BMC plant biology · 2025Article
- Comparative transcriptomics of two petal variants reveals key functional genes underlying petal shape development in lotus (Frontiers in plant science · 2025Article
- Cadmium toxicity: its' uptake and retaliation by plant defence system and ja signaling.Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2024Review
- An integrated QTL and RNA-seq analysis revealed new petal morphology loci in Brassica napus L.Biotechnology for biofuels and bioproducts · 2024Article
- 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
- Review
- The E3 ligase MREL57 modulates microtubule stability and stomatal closure in response to ABA.Nature communications · 2021Article
- Article
- Cortical Microtubule Organization during Petal Morphogenesis inInternational journal of molecular sciences · 2019Review
- An ETHYLENE INSENSITIVE3-LIKE1 Protein Directly Targets theFrontiers in plant science · 2019Article
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Authors and funding
9 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Unlike animal cells, plant cells do not possess centrosomes that serve as microtubule organizing centers; how microtubule arrays are organized throughout plant morphogenesis remains poorly understood. We report here that Arabidopsis INCREASED PETAL GROWTH ANISOTROPY 1 (IPGA1), a previously uncharacterized microtubule-associated protein, regulates petal growth and shape by affecting cortical microtubule organization. Through a genetic screen, we showed that IPGA1 loss-of-function mutants displayed a phenotype of longer and narrower petals, as well as increased anisotropic cell expansion of the petal epidermis in the late phases of flower development. Map-based cloning studies revealed that IPGA1 encodes a previously uncharacterized protein that colocalizes with and directly binds to microtubules. IPGA1 plays a negative role in the organization of cortical microtubules into parallel arrays oriented perpendicular to the axis of cell elongation, with the ipga1-1 mutant displaying increased microtubule ordering in petal abaxial epidermal cells. The IPGA1 family is conserved among land plants and its homologs may have evolved to regulate microtubule organization. Taken together, our findings identify IPGA1 as a novel microtubule-associated protein and provide significant insights into IPGA1-mediated microtubule organization and petal growth anisotropy.
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