ArticlePlant physiology2008
Salt modulates gravity signaling pathway to regulate growth direction of primary roots in Arabidopsis.
Article in Plant physiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers.
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Who cites it
91 citing papers in PubMed, 229 citations in OpenAlex.
- Evolutionary origin of a new gene drives root growth in one desert poplar.The New phytologist · 2026Article
- SMXL3 controls multiple aspects of Arabidopsis development via EAR motif-dependent and -independent functions.The Plant journal : for cell and molecular biology · 2026Article
- Article
- Root Meristem Maintenance Mechanisms are Key to Plant Defense Against Nanoplastics.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Response of hidden architects to salt stress.Planta · 2025Review
- Abscisic acid signaling gates salt-induced responses of plant roots.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Ion toxicity in waterlogged soils: mechanisms of root response and adaptive strategies.Frontiers in plant science · 2025Review
- Salinity survival: molecular mechanisms and adaptive strategies in plants.Frontiers in plant science · 2025Review
- The transcriptional integration of environmental cues with root cell type development.Plant physiology · 2024Review
- Bending away from salt: a SMB-AUX1 story.Transgenic research · 2024Article
- Arabinosylation of cell wall extensin is required for the directional response to salinity in roots.The Plant cell · 2024Article
- A root cap-localized NAC transcription factor controls root halotropic response to salt stress in Arabidopsis.Nature communications · 2024Article
- NnARF17 and NnARF18 from lotus promote root formation and modulate stress tolerance in transgenic Arabidopsis thaliana.BMC plant biology · 2024Article
- Genomic evidence for rediploidization and adaptive evolution following the whole-genome triplication.Nature communications · 2024Article
- Null mutants of a tomato Rho of plants exhibit enhanced water use efficiency without a penalty to yield.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Durum wheat (Frontiers in plant science · 2024Article
- Drought and salt stress mitigation in crop plants using stress-tolerant auxin-producing endophytic bacteria: a futuristic approach towards sustainable agriculture.Frontiers in plant science · 2024Review
- Review
- Modifications in Ultrastructural Characteristics and Redox Status of Plants under Environmental Stress: A Review.Plants (Basel, Switzerland) · 2023Review
- Regulation of Reactive Oxygen Species during Salt Stress in Plants and Their Crosstalk with Other Signaling Molecules-Current Perspectives and Future Directions.Plants (Basel, Switzerland) · 2023Review
31 more citing papers are in PubMed but not listed here.
Corrections and comments
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plant root architecture is highly plastic during development and can adapt to many environmental stresses. The proper distribution of roots within the soil under various conditions such as salinity, water deficit, and nutrient deficiency greatly affects plant survival. Salinity profoundly affects the root system architecture of Arabidopsis (Arabidopsis thaliana). However, despite the inhibitory effects of salinity on root length and the number of roots, very little is known concerning influence of salinity on root growth direction and the underlying mechanisms. Here we show that salt modulates root growth direction by reducing the gravity response. Exposure to salt stress causes rapid degradation of amyloplasts in root columella cells of Arabidopsis. The altered root growth direction in response to salt was found to be correlated with PIN-FORMED2 (PIN2) messenger RNA abundance and expression and localization of the protein. Furthermore, responsiveness to gravity of salt overly sensitive (sos) mutants is substantially reduced, indicating that salt-induced altered gravitropism of root growth is mediated by ion disequilibrium. Mutation of SOS genes also leads to reduced amyloplast degradation in root tip columella cells and the defects in PIN2 gene expression in response to salt stress. These results indicate that the SOS pathway may mediate the decrease of PIN2 messenger RNA in salinity-induced modification of gravitropic response in Arabidopsis roots. Our findings provide new insights into the development of a root system necessary for plant adaptation to high salinity and implicate an important role of the SOS signaling pathway in this process.
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