Plant perception (physiology)
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In the study of plant physiology plant perception is a term used to describe mechanisms by which plants recognize changes in the environment. Examples of stimuli which plants perceive and can react to include chemicals, gravity, light, moisture, infections, temperature, oxygen and carbon dioxide concentrations, parasite infestation, physical disruption, and touch. Plants have a variety of means to detect such stimuli and a variety of reaction reponses or behaviors.
Generally plant perception occurs on a cellular level and its concomitant reactive behavior is mediated by phytochromes, kinins, hormones, antibiotic or other chemical release, changes of water and chemical transport, and other means. These responses are generally slow, taking at minimum a number of hours to accomplish and seen best with time-lapse cinematography, however rapid movements can occur.
Research published in September 2006 [1] has shown, certainly in the case of Arabidopsis thaliana, the role of cryptochromes in the perception of magnetic fields by plants.
[edit] Notes
[edit] See also
- Auxin - A plant hormone which mediates responses
- Chemotropism - Plant response to chemicals
- Cryptochrome - A light receptor pigment
- Ethylene - A plant hormone which mediates responses
- Gravitropism - Behavior associated with gravitic perception
- Heliotropism - Behavior associated with sunlight perception
- Hormonal sentience - Plant information processing theory
- Hydrotropism - Plant response to moisture
- Hypersensitive response - Local reaction produced in response to infection by microbes
- Kinesis - Movement
- Nastic movements - A type of rapid response to non-directional stimulus
- Osmosis - A means of water transportation on the cellular level
- Phototropin - A light receptor pigment
- Phototropism - A behavior associated with light perception
- Phytochrome - A light receptor pigment
- Plant defense against herbivory - Some plant responses to physical disruption
- Plant hormone - A mediator of response to stimuli
- Plant physiology - The science of plant function
- Rapid plant movement - Description of rapid plant movements
- Sensory receptors - Discussion of orgnas of perception in organisms
- Statolith - An organ of gravity perception
- Stoma - A plant pore which responds to stimulus and which regulates gas exchange
- Systemic acquired resistance - A "whole-plant" resistance response to microbial pathogens that occurs following an earlier, localized response
- Taxis - A type of response to a directional stimulus seen in motile developmental stages of lower plants
- Thermotropism - Plant response to heat
- Thigmotropism - Plant response to touch
- Tropism - A type of response to a directional stimulus
[edit] External links
- Trewavas, Anthony (9 May 2003). "Aspects of Plant Intelligence". Annals of Botany 92: 1-20. DOI:10.1093/aob/mcg101. Retrieved on 2006-12-26.
- Miller, Deborah; Whitney Hable, Jennifer Gottwald, Mary Ellard-Ivey, Taku Demura, Terri Lomax, Nick Carpita (1997). "Connections: The Hard Wiring of the Plant Cell for Perception, Signaling, and Response". ': 2105-2117. Retrieved on 2006-12-25.
- Keen, Noel T; Shigeyuki Mayama, Jan E. Leach, and Shinji Tsujumu (eds) (2001). Delivery and Perception of Pathogen Signals in Plants. APS Press, 268. ISBN 0-89054-259-7.
- Taiz, Lincoln; Eduardo Zeiger (2006). Plant Physiology, fourth edition. Sinauer Associates, 700 (est). ISBN13 978-0-87893-856-8.
- Taiz, Lincoln; Eduardo Zeiger (2002). Plant Physiology Online. a companion to Plant Physiology, Third Edition. Sinauer Associates. Retrieved on December 26, 2006.
- Dierk Scheel and Claus Wastermack (May 2002). Plant Signal Transduction. Oxford University Press, 346. ISBN13 978-0-19-963879-6. Retrieved on December 25, 2006.
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