ArticleProceedings of the National Academy of Sciences of the United States of America2010
Auxin transport through PIN-FORMED 3 (PIN3) controls shade avoidance and fitness during competition.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 137 papers, 2 of them syntheses that pooled it.
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137 citing papers in PubMed, 2 syntheses or guidelines pooled it, 286 citations in OpenAlex.
- Meta-Analysis of Arabidopsis KANADI1 Direct Target Genes Identifies a Basic Growth-Promoting Module Acting Upstream of Hormonal Signaling Pathways.Plant physiology · 2015Pooled it
- A genome-wide association study identifies variants underlying the Arabidopsis thaliana shade avoidance response.PLoS genetics · 2012Pooled it
- Elongator complex differentially regulates transcription and translation in the hypocotyl and cotyledons during early light-dependent Arabidopsis development.Plant & cell physiology · 2026Article
- Plant movements: navigating the light environment.Plant physiology · 2026Review
- Species-specific PHYTOCHROME-INTERACTING FACTOR utilization in the plant morphogenetic response to environmental stimuli.The Plant cell · 2025Article
- Here comes the sun: integration of light, temperature, and auxin during herbaceous plant grafting.Planta · 2025Review
- Lights, location, action: shade avoidance signalling over spatial scales.Journal of experimental botany · 2025Review
- Identification and characterization of soybean phytochrome-interacting factors and their potential roles in abiotic stress.BMC plant biology · 2024Article
- RPO film effectively promotes fruit quality and yield of cucumber through adjusting greenhouse environment and hormone contents.BMC plant biology · 2024Article
- Over 25 years of decrypting PIN-mediated plant development.Nature communications · 2024Review
- Temporal and spatial frameworks supporting plant responses to vegetation proximity.Plant physiology · 2024Article
- Shade-induced ROS/NO reinforce COP1-mediated diffuse cell growth.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Phytochrome-dependent responsiveness to root-derived cytokinins enables coordinated elongation responses to combined light and nitrate cues.Nature communications · 2024Article
- Physiological Characteristics and Transcriptomic Responses ofPlants (Basel, Switzerland) · 2024Article
- Unveiling Molecular Signatures in Light-Induced Seed Germination: Insights from PIN3, PIN7, and AUX1 inPlants (Basel, Switzerland) · 2024Article
- Supplementary Low Far-Red Light Promotes Proliferation and Photosynthetic Capacity of Blueberry In Vitro Plantlets.International journal of molecular sciences · 2024Article
- Organ-specific transcriptional regulation by HFR1 and HY5 in response to shade in Arabidopsis.Frontiers in plant science · 2024Article
- Regulation of tissue growth in plants - A mathematical modeling study on shade avoidance response inFrontiers in plant science · 2024Article
- Magic Blue Light: A Versatile Mediator of Plant Elongation.Plants (Basel, Switzerland) · 2023Review
- Parallel auxin transport via PINs and plasmodesmata during the Arabidopsis leaf hyponasty response.Plant cell reports · 2023Article
77 more citing papers are in PubMed but not listed here.
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plants grow in dense vegetations at the risk of being out-competed by neighbors. To increase their competitive power, plants display adaptive responses, such as rapid shoot elongation (shade avoidance) to consolidate light capture. These responses are induced upon detection of proximate neighbors through perception of the reduced ratio between red (R) and far-red (FR) light that is typical for dense vegetations. The plant hormone auxin is a central regulator of plant development and plasticity, but until now it has been unknown how auxin transport is controlled to regulate shade-avoidance responses. Here, we show that low R:FR detection changes the cellular location of the PIN-FORMED 3 (PIN3) protein, a regulator of auxin efflux, in Arabidopsis seedlings. As a result, auxin levels in the elongating hypocotyls are increased under low R:FR. Seedlings of the pin3-3 mutant lack this low R:FR-induced increase of endogenous auxin in the hypocotyl and, accordingly, have no elongation response to low R:FR. We hypothesize that low R:FR-induced stimulation of auxin biosynthesis drives the regulation of PIN3, thus allowing shade avoidance to occur. The adaptive significance of PIN3-mediated control of shade-avoidance is shown in plant competition studies. It was found that pin3 mutants are outcompeted by wild-type neighbors who suppress fitness of pin3-3 by 40%. We conclude that low R:FR modulates the auxin distribution by a change in the cellular location of PIN3, and that this control can be of great importance for plants growing in dense vegetations.
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