ArticleThe New phytologist2020
Auxin-induced actin cytoskeleton rearrangements require AUX1.
Article in The New phytologist, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed, 38 citations in OpenAlex.
- Actin Isovariant ACT2-Mediated Cellular Auxin Homeostasis Regulates Lateral Root Organogenesis in Arabidopsis thaliana.Cytoskeleton (Hoboken, N.J.) · 2026Article
- Cytoskeletal control of development and environmental adaptation in plants.Science China. Life sciences · 2026Review
- Intracellular MIZU-KUSSEI1 movement and hydrotropism in Arabidopsis require F-actin organization.Plant physiology · 2025Article
- Phosphate promotes Arabidopsis root skewing and circumnutation through reorganisation of the microtubule cytoskeleton.The New phytologist · 2024Article
- Auxin-Mediated Lateral Root Development in Root Galls of Cucumber underPlants (Basel, Switzerland) · 2024Article
- Multi-omics analysis of green lineage osmotic stress pathways unveils crucial roles of different cellular compartments.Nature communications · 2024Article
- ZmPILS6 is an auxin efflux carrier required for maize root morphogenesis.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Cooperative actin filament nucleation by the Arp2/3 complex and formins maintains the homeostatic cortical array in Arabidopsis epidermal cells.The Plant cell · 2024Article
- Machine learning and feature analysis of the cortical microtubule organization of Arabidopsis cotyledon pavement cells.Protoplasma · 2023Article
- The birth of a giant: evolutionary insights into the origin of auxin responses in plants.The EMBO journal · 2023Review
- At the Nexus between Cytoskeleton and Vacuole: How Plant Cytoskeletons Govern the Dynamics of Large Vacuoles.International journal of molecular sciences · 2023Review
- Fourteen Stations of Auxin.Cold Spring Harbor perspectives in biology · 2022Review
- Cell biology of primary cell wall synthesis in plants.The Plant cell · 2022Review
- CARK3-mediated ADF4 regulates hypocotyl elongation and soil drought stress in Arabidopsis.Frontiers in plant science · 2022Article
- Interaction With Fungi Promotes the Accumulation of Specific Defense Molecules in Orchid Tubers and May Increase the Value of Tubers for Biotechnological and Medicinal Applications: The Case Study of Interaction BetweenFrontiers in plant science · 2022Article
- The Root Hair Development of Pectin Polygalacturonase PGX2 Activation Tagging Line in Response to Phosphate Deficiency.Frontiers in plant science · 2022Article
- The Story of Auxin-Binding Protein 1 (ABP1).Cold Spring Harbor perspectives in biology · 2021Review
- No Time for Transcription-Rapid Auxin Responses in Plants.Cold Spring Harbor perspectives in biology · 2021Review
- Bundling up the Role of the Actin Cytoskeleton in Primary Root Growth.Frontiers in plant science · 2021Review
- Arabidopsis ADF5 Acts as a Downstream Target Gene of CBFs in Response to Low-Temperature Stress.Frontiers in cell and developmental biology · 2021Article
Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The actin cytoskeleton is required for cell expansion and implicated in cellular responses to the phytohormone auxin. However, the mechanisms that coordinate auxin signaling, cytoskeletal remodeling and cell expansion are poorly understood. Previous studies examined long-term actin cytoskeleton responses to auxin, but plants respond to auxin within minutes. Before this work, an extracellular auxin receptor - rather than the auxin transporter AUXIN RESISTANT 1 (AUX1) - was considered to precede auxin-induced cytoskeleton reorganization. In order to correlate actin array organization and dynamics with degree of cell expansion, quantitative imaging tools established baseline actin organization and illuminated individual filament behaviors in root epidermal cells under control conditions and after indole-3-acetic acid (IAA) application. We evaluated aux1 mutant actin organization responses to IAA and the membrane-permeable auxin 1-naphthylacetic acid (NAA). Cell length predicted actin organization and dynamics in control roots; short-term IAA treatments stimulated denser and more parallel, longitudinal arrays by inducing filament unbundling within minutes. Although AUX1 is necessary for full actin rearrangements in response to auxin, cytoplasmic auxin (i.e. NAA) stimulated a lesser response. Actin filaments became more 'organized' after IAA stopped elongation, refuting the hypothesis that 'more organized' actin arrays universally correlate with rapid growth. Short-term actin cytoskeleton response to auxin requires AUX1 and/or cytoplasmic auxin.
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