ArticleProceedings of the National Academy of Sciences of the United States of America2007
Oscillations in extracellular pH and reactive oxygen species modulate tip growth of Arabidopsis root hairs.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 176 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
176 citing papers in PubMed, 1 synthesis or guideline pooled it, 415 citations in OpenAlex.
- Root hair growth from the pH point of view.Frontiers in plant science · 2022Pooled it
- Quantitative imaging of apoplastic pH in plant roots via confocal microscopy.Nature protocols · 2026Review
- Article
- Mechanical constraint causes lower turgor, thicker walls, and faster growth in Arabidopsis root hairs.Plant physiology · 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
- Rhizosphere Reactive Oxygen Species: Detection Methods, Distribution Characteristics, Production Mechanisms, and Environmental Effects.Current issues in molecular biology · 2026Review
- VqLecRKV.4 and VqBAK1 Modulate Grapevine Resistance to Powdery Mildew by Regulating Dynamic Balance of ROS.Plant biotechnology journal · 2026Article
- Nitrogen-Controlled Host Gatekeeping: Regulatory Chokepoints Across Four Windows for Diazotroph Access.International journal of molecular sciences · 2026Article
- The RALF-FERONIA Signaling Axis: A Central Hub Integrating Plant Growth, Reproduction, and Stress Responses.International journal of molecular sciences · 2025Review
- MLO-mediated CaThe New phytologist · 2025Article
- Clathrin-mediated endocytosis regulates root endodermal suberization via ROS.The New phytologist · 2025Article
- Comparative transcriptome analysis of differentially expressed genes of Medicago falcata L. breeding lines response to saline-alkaline stress.BMC plant biology · 2025Article
- PbrBGAL6 promotes pollen tube growth by influencing apical pectin level in Pyrus bretschneideri.BMC genomics · 2025Article
- Abscisic acid signaling gates salt-induced responses of plant roots.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- CPK1 activates CNGCs through phosphorylation for CaNature communications · 2025Article
- Polar localization and local translation of RHO-RELATED PROTEIN FROM PLANTS2 mRNAs promote root hair growth in Arabidopsis.The Plant cell · 2024Article
- Micronutrient deficiency-induced oxidative stress in plants.Plant cell reports · 2024Review
- Effect of salt-alkali stress on seed germination of the halophyte Halostachys caspica.Scientific reports · 2024Article
- The plant cell wall-dynamic, strong, and adaptable-is a natural shapeshifter.The Plant cell · 2024Review
- Actin-depolymerizing factors 8 and 11 promote root hair elongation at high pH.Plant communications · 2024Article
116 more citing papers are in PubMed but not listed here.
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Authors and funding
5 authors at 3 institutions in 2 countries.
Funding
Abstract
Root hairs show highly localized cell expansion focused to their growing tips. This growth pattern is accomplished through restriction of secretion to the elongating apex and modulation of cell wall properties, with the wall just behind the tip becoming rigidified to resist the lateral expansive forces of turgor. In this report we show that root hairs exhibit oscillating growth that is associated with oscillating increases in extracellular pH and reactive oxygen species (ROS), which lag growth by approximately 7 s. Consistent with a role for these changes in growth control, artificially increasing extracellular pH arrested root hair elongation, whereas decreasing pH elicited bursting at the tip. Similarly, application of exogenous ROS arrested elongation, whereas scavenging of ROS led to root hair bursting. Roots hairs of the root hair-defective rhd2-1 mutant, which lack a functional version of the NADPH oxidase ATRBOH C, burst at the transition to tip growth. This phenotype could be rescued by elevating the pH of the growth medium to >/=6.0. Such rescued root hairs showed reduced cytoplasmic ROS levels and a lack of the oscillatory production of ROS at the tip. However, they exhibited apparently normal tip growth, including generation of the tip-focused Ca(2+) gradient thought to drive apical growth, indicating that ATRBOH C is not absolutely required to sustain tip growth. These observations indicate that root hair elongation is coupled to spatially distinct regulation of extracellular pH and ROS production that likely affect wall properties associated with the polarized expansion of the cell.
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Registered trials
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.