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Physical Limits and Design Principles for Plant and Fungal Movements

Skotheim, Jan M ; Mahadevan, L

Science (American Association for the Advancement of Science), 2005-05, Vol.308 (5726), p.1308-1310 [Periódico revisado por pares]

Washington, DC: American Association for the Advancement of Science

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Título:
Physical Limits and Design Principles for Plant and Fungal Movements
Autor: Skotheim, Jan M ; Mahadevan, L
Assuntos: Agronomy. Soil science and plant productions ; Biological and medical sciences ; Biophysics ; cell growth ; cell membranes ; Cell Wall - physiology ; Classification ; Dactylaria brochophaga ; Droseraceae - anatomy & histology ; Droseraceae - physiology ; Economic plant physiology ; Elastic tissue ; Elasticity ; Euphorbiaceae - anatomy & histology ; Euphorbiaceae - physiology ; Explosives ; Fracture mechanics ; Fundamental and applied biological sciences. Psychology ; fungal movements ; Fungi ; Fungi - cytology ; Fungi - physiology ; Hydraulics ; hyphae ; Irritability and movements ; Kinetics ; Mathematics ; Mechanics (Physics) ; Motion ; Movement ; Mucorales - cytology ; Mucorales - physiology ; nastic movement ; nonmuscular hydraulic movements ; osmoregulation ; Physical Phenomena ; Physics ; Physiological aspects ; physiological transport ; Pilobolus ; Plant Leaves - physiology ; Plant movement ; plant movements ; Plant Physiological Phenomena ; Plant tissues ; plant-water relations ; Plants ; Plants - anatomy & histology ; Pressure ; Speed ; stomatal movement ; Swelling ; Time Factors ; Tropism and nastic movements ; turgor ; Viscoelasticity ; Viscosity ; Water ; Water - physiology
É parte de: Science (American Association for the Advancement of Science), 2005-05, Vol.308 (5726), p.1308-1310
Notas: ObjectType-Article-2
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Descrição: The typical scales for plant and fungal movements vary over many orders of magnitude in time and length, but they are ultimately based on hydraulics and mechanics. We show that quantification of the length and time scales involved in plant and fungal motions leads to a natural classification, whose physical basis can be understood through an analysis of the mechanics of water transport through an elastic tissue. Our study also suggests a design principle for nonmuscular hydraulically actuated structures: Rapid actuation requires either small size or the enhancement of motion on large scales via elastic instabilities.
Editor: Washington, DC: American Association for the Advancement of Science
Idioma: Inglês

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Physical Limits and Design Principles for Plant and Fungal Movements

Skotheim, Jan M ; Mahadevan, L

Washington, DC: American Association for the Advancement of Science

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