Results 11 to 20 of about 114 (104)
Root Circumnutation Reduces Mechanical Resistance to Soil Penetration
Plant, Cell & EnvironmentABSTRACTRoot circumnutation, the helical movement of growing root tips, is a widely observed behaviour of plants. However, our mechanistic understanding of the impacts of root circumnutation on root growth and soil exploration is limited. Here, we deployed a unique combination of penetrometer measurements, X‐ray computed tomography and time‐lapse ...
Frederic Leuther +5 more
openaire +3 more sources
A deep learning approach to track Arabidopsis seedlings’ circumnutation from time-lapse videos
Plant Methods, 2023 Background Circumnutation (Darwin et al., Sci Rep 10(1):1–13, 2000) is the side-to-side movement common among growing plant appendages but the purpose of circumnutation is not always clear.
Yixiang Mao +3 more
doaj +1 more source
Frontiers in Plant Science, 2021 We present a three-dimensional morphoelastic rod model capable to describe the morphogenesis of growing plant shoots driven by differential growth. We discuss the evolution laws for endogenous oscillators, straightening mechanisms, and reorientations to ...
Daniele Agostinelli +3 more
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A General 3D Model for Growth Dynamics of Sensory-Growth Systems: From Plants to Robotics
Frontiers in Robotics and AI, 2020 In recent years, there has been a rise in interest in the development of self-growing robotics inspired by the moving-by-growing paradigm of plants.
Amir Porat +4 more
doaj +1 more source
Advanced Intelligent Systems, 2023 Herein, recent advances, current limitations, and open challenges in the design, modeling, and control of continuum robots are discussed. Thanks to their lean bodies, these robots achieve a long reach through narrow and tortuous environments, enabling ...
Matteo Russo +7 more
doaj +1 more source
Glutamatergic elements in an excitability and circumnutation mechanism [PDF]
Plant Signaling & Behavior, 2010 In plants, an electrical potential and circumnutation disturbances are a part of a response to environmental and internal stimuli. Precise relations between electrical potential changes and circumnutation mechanisms are unclear. We have found recently that glutamate (Glu) injection into Helianthus annuus stem induced a series of action potentials (APs)
Maria, Stolarz +2 more
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The Growth Oscillator and Plant Stomata: An Open and Shut Case
Plants, 2023 Since Darwin’s “Power of Movement in Plants” the precise mechanism of oscillatory plant growth remains elusive. Hence the search continues for the hypothetical growth oscillator that regulates a huge range of growth phenomena ranging from circumnutation ...
Derek T. A. Lamport
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Genotypic differences in systemic root responses to mechanical obstacles
Physiologia Plantarum, Volume 175, Issue 6, November/December 2023., 2023 Abstract As roots grow through the soil to forage for water and nutrients, they encounter mechanical obstacles such as patches of dense soil and stones that locally impede root growth. Here, we investigated hitherto poorly understood systemic responses of roots to localised root impedance.
Tino Colombi +4 more
wiley +1 more source
Circumnutations of Sunflower Hypocotyls in Satellite Orbit [PDF]
Plant Physiology, 1990 The principal objective of the research reported here was to determine whether a plant's periodic growth oscillations, called circumnutations, would persist in the absence of a significant gravitational or inertial force. The definitive experiment was made possible by access to the condition of protracted near weightlessness in an earth satellite ...
A H, Brown +3 more
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Frontiers in Plant Science, 2017 Action potentials (APs), i.e., long-distance electrical signals, and circumnutations (CN), i.e., endogenous plant organ movements, are shaped by ion fluxes and content in excitable and motor tissues.
Maria Stolarz, Halina Dziubinska
doaj +1 more source