ArticleJournal of experimental botany2019
Revealing the hierarchy of processes and time-scales that control the tropic response of shoots to gravi-stimulations.
Article in Journal of experimental botany, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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Who cites it
13 citing papers in PubMed.
- Angle dependence as a unifying feature of root graviresponse modules.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Microbial drivers of root plasticity.The New phytologist · 2025Review
- Review
- A Reinforcement Learning approach to study climbing plant behaviour.Scientific reports · 2024Article
- Plants sum and subtract stimuli over different timescales.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- A 2D model to study how secondary growth affects the self-supporting behaviour of climbing plants.PLoS computational biology · 2023Article
- A field theory for plant tropisms.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Nutations in Plant Shoots: Endogenous and Exogenous Factors in the Presence of Mechanical Deformations.Frontiers in plant science · 2021Article
- An Integrative Model of Plant Gravitropism Linking Statoliths Position and Auxin Transport.Frontiers in plant science · 2021Article
- Rearrangement of the Cellulose-Enriched Cell Wall in Flax Phloem Fibers over the Course of the Gravitropic Reaction.International journal of molecular sciences · 2020Article
- A mathematical model explores the contributions of bending and stretching forces to shoot gravitropism in Arabidopsis.Quantitative plant biology · 2020Article
- Spatio-temporal integration in plant tropisms.Journal of the Royal Society, Interface · 2019Article
- Revealing the hierarchy of processes and time-scales that control the tropic response of shoots to gravi-stimulations.Journal of experimental botany · 2019Article
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5 authors.
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Abstract
Gravity is a major abiotic cue for plant growth. However, little is known about the responses of plants to various patterns of gravi-stimulation, with apparent contradictions being observed between the dose-like responses recorded under transient stimuli in microgravity environments and the responses under steady-state inclinations recorded on earth. Of particular importance is how the gravitropic response of an organ is affected by the temporal dynamics of downstream processes in the signalling pathway, such as statolith motion in statocytes or the redistribution of auxin transporters. Here, we used a combination of experiments on the whole-plant scale and live-cell imaging techniques on wheat coleoptiles in centrifuge devices to investigate both the kinematics of shoot-bending induced by transient inclination, and the motion of the statoliths in response to cell inclination. Unlike previous observations in microgravity, the response of shoots to transient inclinations appears to be independent of the level of gravity, with a response time much longer than the duration of statolith sedimentation. This reveals the existence of a memory process in the gravitropic signalling pathway, independent of statolith dynamics. By combining this memory process with statolith motion, a mathematical model is built that unifies the different laws found in the literature and that predicts the early bending response of shoots to arbitrary gravi-stimulations.
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