A logical (discrete) formulation for the storage and recall of environmental signals in plants

Plant Biology
M ThellierR Thomas

Abstract

When subjected to an appropriate asymmetric stimulus, seedlings of Bidens pilosa L. "store" a symmetry-breaking instruction that will finally take effect (in the form of a differential growth of the cotyledonary buds) only if the plants are in a state in which they can "recall" this information. The ability of the plants to recall the stored symmetry-breaking instruction may be switched "on" or "off" by the application of a variety of stimuli. Although its detailed phenomenology is rather complicated, the overall behaviour of the plant storage/recall system can be modelled by use of an asynchronous, logical (discrete) description involving positive and negative feedback circuits, which are required for the existence of multi-stationarity and stability, respectively. The state tables, as used in this formalism, give a concise and easy-to-handle description of the evolution of the system and make it particularly easy to determine its stable states. This modelling approach may be extended to the formulation of many other experimental systems.

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Citations

Jun 14, 2005·Journal of Theoretical Biology·Jürg Bähler, Sasa Svetina
Jul 31, 2003·Comptes rendus biologies·Jacques DemongeotOlivier Cohen
Mar 14, 2008·Bio Systems·Peter W Barlow
Jul 29, 2008·Plant, Cell & Environment·Ivan GálisIan T Baldwin
Jan 1, 2006·Plant Signaling & Behavior·M TafforeauM Thellier
Jun 1, 2016·Frontiers in Psychology·Fatima CvrčkováAnton Markoš
Nov 4, 2009·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Lamia AbbasNicolas Glade
Oct 16, 2012·Origins of Life and Evolution of the Biosphere : the Journal of the International Society for the Study of the Origin of Life·Vic NorrisAlain Thierry
Aug 17, 2019·The Indian Journal of Medical Research·Prakash Narain Tandon

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