ArticlePlant physiology2023
Abscisic acid modulates neighbor proximity-induced leaf hyponasty in Arabidopsis.
Article in Plant physiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 27 citations in OpenAlex.
- Rice adaptation to low-light stress: integrating morpho-physiology, biochemical plasticity, signalling networks and molecular breeding strategies.Plant cell reports · 2026Review
- Plant movements: navigating the light environment.Plant physiology · 2026Review
- Integration of light quality signals regulates ABA abundance and stomatal movements during seedling establishment.The New phytologist · 2026Article
- Exogenous abscisic acid inhibits leaf elevation during shade avoidance response inmicroPublication biology · 2026Article
- Lights, location, action: shade avoidance signalling over spatial scales.Journal of experimental botany · 2025Review
- Genome-Wide Identification of GmPIF Family and Regulatory Pathway Analysis of GmPIF3g in Different Temperature Environments.International journal of molecular sciences · 2025Article
- Time course measurements of leaf elevation angles during shade avoidance response inmicroPublication biology · 2025Article
- Understanding AP2/ERF Transcription Factor Responses and Tolerance to Various Abiotic Stresses in Plants: A Comprehensive Review.International journal of molecular sciences · 2024Review
- Biosynthesis of gibberellin-related compounds modulates far-red light responses in the liverwort Marchantia polymorpha.The Plant cell · 2023Article
- Shade avoidance in the context of climate change.Plant physiology · 2023Article
- Far-Red-Light-Induced Morphology Changes, Phytohormone, and Transcriptome Reprogramming of Chinese Kale (International journal of molecular sciences · 2023Article
- Let the sunshine in: Abscisic acid modulates shade avoidance by inducing hyponasty movement in Arabidopsis.Plant physiology · 2023Article
Corrections and comments
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Authors and funding
12 authors at 3 institutions in 2 countries.
Funding
Abstract
Leaves of shade-avoiding plants such as Arabidopsis (Arabidopsis thaliana) change their growth pattern and position in response to low red to far-red ratios (LRFRs) encountered in dense plant communities. Under LRFR, transcription factors of the phytochrome-interacting factor (PIF) family are derepressed. PIFs induce auxin production, which is required for promoting leaf hyponasty, thereby favoring access to unfiltered sunlight. Abscisic acid (ABA) has also been implicated in the control of leaf hyponasty, with gene expression patterns suggesting that LRFR regulates the ABA response. Here, we show that LRFR leads to a rapid increase in ABA levels in leaves. Changes in ABA levels depend on PIFs, which regulate the expression of genes encoding isoforms of the enzyme catalyzing a rate-limiting step in ABA biosynthesis. Interestingly, ABA biosynthesis and signaling mutants have more erect leaves than wild-type Arabidopsis under white light but respond less to LRFR. Consistent with this, ABA application decreases leaf angle under white light; however, this response is inhibited under LRFR. Tissue-specific interference with ABA signaling indicates that an ABA response is required in different cell types for LRFR-induced hyponasty. Collectively, our data indicate that LRFR triggers rapid PIF-mediated ABA production. ABA plays a different role in controlling hyponasty under white light than under LRFR. Moreover, ABA exerts its activity in multiple cell types to control leaf position.
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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.