ArticlePlant physiology2010
Differential auxin-transporting activities of PIN-FORMED proteins in Arabidopsis root hair cells.
Article in Plant physiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.
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Who cites it
73 citing papers in PubMed, 151 citations in OpenAlex.
- Metabolism meets transport: a new perspective on auxin homeostasis at subcellular level.Planta · 2026Review
- ROPGAP3 interacts with PIN2 and modulates its clustering and trafficking inProceedings of the National Academy of Sciences of the United States of America · 2025Article
- FLL2 modulatesiScience · 2025Article
- Enhanced auxin signaling promotes root-hair growth at moderately low temperature in Arabidopsis thaliana.Plant communications · 2025Article
- ThePlants (Basel, Switzerland) · 2025Article
- Cellular and physiological functions of SGR family in gravitropic response in higher plants.Journal of advanced research · 2025Review
- Mapping the membrane orientation of auxin homeostasis regulators PIN5 and PIN8 in Arabidopsis thaliana root cells reveals their divergent topology.Plant methods · 2024Article
- Exploring the dynamic adaptive responses of Epimedium pubescens to phosphorus deficiency by Integrated transcriptome and miRNA analysis.BMC plant biology · 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
- FAB1C, a phosphatidylinositol 3-phosphate 5-kinase, interacts with PIN-FORMEDs and modulates their lytic trafficking in Arabidopsis.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Optimization of Plant Growth Regulators for In Vitro Mass Propagation of a Disease-Free 'Shine Muscat' Grapevine Cultivar.Current issues in molecular biology · 2023Article
- Article
- Unravelling Differential DNA Methylation Patterns in Genotype Dependent Manner under Salinity Stress Response in Chickpea.International journal of molecular sciences · 2023Article
- Genome-Wide Identification ofPlants (Basel, Switzerland) · 2022Article
- Genome-wide association study reveals that GhTRL1 and GhPIN8 affect cotton root development.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- Auxin-Cytokinin Cross Talk in Somatic Embryogenesis ofPlants (Basel, Switzerland) · 2022Article
- Fluorescent Auxin Analogs Report Two Auxin Binding Sites with Different Subcellular Distribution and Affinities: A Cue for Non-Transcriptional Auxin Signaling.International journal of molecular sciences · 2022Article
- The Root Hair Development of Pectin Polygalacturonase PGX2 Activation Tagging Line in Response to Phosphate Deficiency.Frontiers in plant science · 2022Article
- Silicon Application Differentially Modulates Root Morphology and Expression ofFrontiers in plant science · 2022Article
- Calcium-dependent protein kinase 29 modulates PIN-FORMED polarity and Arabidopsis development via its own phosphorylation code.The Plant cell · 2021Article
13 more citing papers are in PubMed but not listed here.
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The Arabidopsis (Arabidopsis thaliana) genome includes eight PIN-FORMED (PIN) members that are molecularly diverged. To comparatively examine their differences in auxin-transporting activity and subcellular behaviors, we expressed seven PIN proteins specifically in Arabidopsis root hairs and analyzed their activities in terms of the degree of PIN-mediated root hair inhibition or enhancement and determined their subcellular localization. Expression of six PINs (PIN1-PIN4, PIN7, and PIN8) in root hair cells greatly inhibited root hair growth, most likely by lowering auxin levels in the root hair cell by their auxin efflux activities. The auxin efflux activity of PIN8, which had not been previously demonstrated, was further confirmed using a tobacco (Nicotiana tabacum) cell assay system. In accordance with these results, those PINs were localized in the plasma membrane, where they likely export auxin to the apoplast and formed internal compartments in response to brefeldin A. These six PINs conferred different degrees of root hair inhibition and sensitivities to auxin or auxin transport inhibitors. Conversely, PIN5 mostly localized to internal compartments, and its expression in root hair cells rather slightly stimulated hair growth, implying that PIN5 enhanced internal auxin availability. These results suggest that different PINs behave differentially in catalyzing auxin transport depending upon their molecular activity and subcellular localization in the root hair cell.
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