ArticleNature plants2025
The apoplastic pH is a key determinant in the hypocotyl growth response to auxin dosage and light.
Article in Nature plants, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed.
- Short-day photoperiod enhances graft success by increasing auxin accumulation.Plant signaling & behavior · 2026Article
- Coordination of drought-adaptive root growth plasticity through auxin homeostasis by the ZmSPL12-ZmYUC5 module in maize.The New phytologist · 2026Article
- Structural variation in the IAMH2 3' UTR underlies hypocotyl elongation during light adaptation in Arabidopsis thaliana.The Plant journal : for cell and molecular biology · 2026Article
- Mutual antagonism between auxin and diacylglycerol acyltransferase 2 regulates high-temperature-induced hypocotyl elongation.The New phytologist · 2026Article
- Evaluating Causal Claims in Plant Developmental Metabolism: A When-Where-How Framework.Plants (Basel, Switzerland) · 2026Review
- Phytochrome B and the methyltransferase complex coordinately regulate NPlant communications · 2026Article
- Apoplastic pH modulates gene expression, the proteome, and ABA content in Vicia faba guard cells and is accompanied by reduced stomatal aperture under salt stress.Journal of experimental botany · 2026Article
- ARF6 integrates auxin and gibberellin signaling to promote stone cell lignification in pear via the HB49-MYB169 module.The New phytologist · 2026Article
- Plant movements: navigating the light environment.Plant physiology · 2026Review
- BrPIF4/BrBBX24-BrHB52-mediated hypocotyl modularity unlocks mechanized harvesting potential inHorticulture research · 2026Article
- Recent Advances and Future Perspectives in Plant Auxin Biology.Plants (Basel, Switzerland) · 2026Article
- The IAOx-Dependent IAA Biosynthesis Pathway: Acquired Insights, Paradigm Shifts, and Unresolved Questions.Plants (Basel, Switzerland) · 2026Review
- Genome-wide unraveling of theFrontiers in plant science · 2026Article
- Plant growth regulators enhance growth and photosynthetic performance in endangered Firmiana Kwangsiensis seedlings.BMC plant biology · 2025Article
- Mechanisms of auxin action in plant growth and development.Nature reviews. Molecular cell biology · 2025Review
- Root-Zone Temperature Drives Coordinated Photosynthesis, Root Architecture, and Metabolism Responses inPlants (Basel, Switzerland) · 2025Article
- Harnessing the acid growth theory to optimize apoplastic acidification for enhancing cotton fiber elongation.Plant communications · 2025Article
- Generation and Functional Characteristics of CRISPR/Cas9-EditedPlants (Basel, Switzerland) · 2025Article
- Genome-Wide Identification of the ARF Gene Family in Safflower (International journal of molecular sciences · 2025Article
- When more becomes too much in acid growth.Nature plants · 2025Article
Corrections and comments
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Authors and funding
13 authors.
Funding
Abstract
Auxin is a core phytohormone regulating plant elongation growth. While auxin typically promotes hypocotyl elongation, excessive amounts of auxin inhibit elongation. Moreover, auxin usually promotes light-grown, but inhibits dark-grown hypocotyl elongation. How dosage and light condition change the plant's response to auxin, also known as auxin's biphasic effect or dual effect, has long been mysterious. Auxin induces cell expansion primarily through apoplastic acidification and the subsequent 'acid growth' mechanism. Here we show that this pathway operates for both stimulatory and inhibitory auxin doses and under both dark and light conditions. Regardless of the dosage, more auxin induces more transcripts of SAURs (Small Auxin-Up RNAs), leading to a stronger activation of plasma membrane H
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