ArticlePlant physiology2009
GNOM-mediated vesicular trafficking plays an essential role in hydrotropism of Arabidopsis roots.
Article in Plant physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.
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Who cites it
35 citing papers in PubMed, 116 citations in OpenAlex.
- RBOHC-Generated ROS Tune MIZ2/GNOM-Dependent Root Halotropism in Arabidopsis.Plant, cell & environment · 2026Article
- Environmental regulation of root growth angle in cereal crops.Plant and soil · 2026Review
- Intracellular MIZU-KUSSEI1 movement and hydrotropism in Arabidopsis require F-actin organization.Plant physiology · 2025Article
- Role of Abscisic Acid, Reactive Oxygen Species, and CaPlants (Basel, Switzerland) · 2024Review
- Defects in the cell wall and its deposition caused by loss-of-function of three RLKs alter root hydrotropism in Arabidopsis thaliana.Nature communications · 2024Article
- Article
- Don't be MIZguided, know where to grow!Communications biology · 2024Article
- Review
- The link between hydrotropism and phototropism in Arabidopsis roots.Journal of experimental botany · 2023Article
- The Arf-GEF GBF1 undergoes multi-domain structural shifts to activate Arf at the Golgi.Frontiers in cell and developmental biology · 2023Article
- Gravity sensing and responses in the coordination of the shoot gravitropic setpoint angle.The New phytologist · 2022Review
- Diversity of root hydrotropism among natural variants of Arabidopsis thaliana.Journal of plant research · 2022Article
- Plant Gravitropism: From Mechanistic Insights into Plant Function on Earth to Plants Colonizing Other Worlds.Methods in molecular biology (Clifton, N.J.) · 2022Review
- Intricate genetic variation networks control the adventitious root growth angle in apple.BMC genomics · 2020Article
- Molecular mechanisms mediating root hydrotropism: what we have observed since the rediscovery of hydrotropism.Journal of plant research · 2020Review
- Asymmetric distribution of cytokinins determines root hydrotropism in Arabidopsis thaliana.Cell research · 2019Article
- Root Plasticity in the Pursuit of Water.Plants (Basel, Switzerland) · 2019Review
- Root Tropisms: Investigations on Earth and in Space to Unravel Plant Growth Direction.Frontiers in plant science · 2019Review
- MIZ1 regulates ECA1 to generate a slow, long-distance phloem-transmitted CaProceedings of the National Academy of Sciences of the United States of America · 2018Article
- Comparative Analysis of Arabidopsis Ecotypes Reveals a Role for Brassinosteroids in Root Hydrotropism.Plant physiology · 2018Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Roots respond not only to gravity but also to moisture gradient by displaying gravitropism and hydrotropism, respectively, to control their growth orientation, which helps plants obtain water and become established in the terrestrial environment. As gravitropism often interferes with hydrotropism, however, the mechanisms of how roots display hydrotropism and differentiate it from gravitropism are not understood. We previously reported MIZU-KUSSEI1 (MIZ1) as a gene required for hydrotropism but not for gravitropism, although the function of its protein was not known. Here, we found that a mutation of GNOM encoding guanine-nucleotide exchange factor for ADP-ribosylation factor-type G proteins was responsible for the ahydrotropism of Arabidopsis (Arabidopsis thaliana), miz2. Unlike other gnom alleles, miz2 showed no apparent morphological defects or reduced gravitropism. Instead, brefeldin A (BFA) treatment inhibited both hydrotropism and gravitropism in Arabidopsis roots. In addition, a BFA-resistant GNOM variant, GNM696L, showed normal hydrotropic response in the presence of BFA. Furthermore, a weak gnom allele, gnomB/E, showed defect in hydrotropic response. These results indicate that GNOM-mediated vesicular trafficking plays an essential role in hydrotropism of seedling roots.
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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.