ArticlePlanta2004
Role of cytokinin in the regulation of root gravitropism.
Article in Planta, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.
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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
40 citing papers in PubMed, 125 citations in OpenAlex.
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- Integrated metabolomics, PacBio SMRT, and Illumina sequencing analyses provide insights into molecular profiles associated with radial trunk growth in Chinese fir (Frontiers in plant science · 2026Article
- Plant plastids: from evolutionary origins to functional specialization and organelle interactions.Journal of experimental botany · 2025Review
- Exploring plant responses to altered gravity for advancing space agriculture.Plant communications · 2025Review
- Molecular mechanism of brassinosteroids involved in root gravity response based on transcriptome analysis.BMC plant biology · 2024Article
- Bacillus Strains as Effective Biocontrol Agents Against Phytopathogenic Bacteria and Promoters of Plant Growth.Microbial ecology · 2024Article
- Identification of genetics and hormonal factors involved in Quercus robur root growth regulation in different cultivation system.BMC plant biology · 2024Article
- Combination ofBiology · 2023Article
- Response characteristics of root to moisture change at seedling stage ofFrontiers in plant science · 2022Article
- Plant Gravitropism: From Mechanistic Insights into Plant Function on Earth to Plants Colonizing Other Worlds.Methods in molecular biology (Clifton, N.J.) · 2022Review
- Alkaline stress reduces root waving by regulating PIN7 vacuolar transport.Frontiers in plant science · 2022Article
- Understanding the Intricate Web of Phytohormone Signalling in Modulating Root System Architecture.International journal of molecular sciences · 2021Review
- Biochemical and economical effect of application biostimulants containing seaweed extracts and amino acids as an element of agroecological management of bean cultivation.Scientific reports · 2020Article
- Asymmetric cytokinin signaling opposes gravitropism in roots.Journal of integrative plant biology · 2020Article
- Settling for Less: Do Statoliths Modulate Gravity Perception?Plants (Basel, Switzerland) · 2020Article
- Rhizobacteria Mediate the Phytotoxicity of a Range of Biorefinery-Relevant Compounds.Environmental toxicology and chemistry · 2019Review
- Actin Reorganization Triggers Rapid Cell Elongation in Roots.Plant physiology · 2018Article
- Light Controls Cytokinin Signaling via Transcriptional Regulation of Constitutively Active Sensor Histidine Kinase CKI1.Plant physiology · 2017Article
- Striking the Right Chord: Signaling Enigma during Root Gravitropism.Frontiers in plant science · 2017Review
- The effect of spaceflight on the gravity-sensing auxin gradient of roots: GFP reporter gene microscopy on orbit.NPJ microgravity · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The models explaining root gravitropism propose that the growth response of plants to gravity is regulated by asymmetric distribution of auxin (indole-3-acetic acid, IAA). Since cytokinin has a negative regulatory role in root growth, we suspected that it might function as an inhibitor of tropic root elongation during gravity response. Therefore, we examined the free-bioactive-cytokinin-dependent ARR5::GUS expression pattern in root tips of transformants of Arabidopsis thaliana (L.) Heynh., visualized high cytokinin concentrations in the root cap with specific monoclonal antibodies, and complemented the analyses by external application of cytokinin. Our findings show that mainly the statocytes of the cap produce cytokinin, which may contribute to the regulation of root gravitropism. The homogenous symmetric expression of the cytokinin-responsive promoter in vertical root caps rapidly changed within less than 30 min of gravistimulation into an asymmetrical activation pattern, visualized as a lateral, distinctly stained, concentrated spot on the new lower root side of the cap cells. This asymmetric cytokinin distribution obviously caused initiation of a downward curvature near the root apex during the early rapid phase of gravity response, by inhibiting elongation at the lower side and promoting growth at the upper side of the distal elongation zone closely behind the root cap. Exogenous cytokinin applied to vertical roots induced root bending towards the application site, confirming the suspected inhibitory effect of cytokinin in root gravitropism. Our results suggest that the early root graviresponse is controlled by cytokinin. We conclude that both cytokinin and auxin are key hormones that regulate root gravitropism.
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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.