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Observations of Bifurcation and Chaos in Plant Physiological Responses to Light


Shabala, SN and Delbourgo, R and Newman, IA, Observations of Bifurcation and Chaos in Plant Physiological Responses to Light, Australian Journal of Plant Physiology, 24, (1) pp. 91-96. ISSN 0310-7841 (1997) [Refereed Article]

DOI: doi:10.1071/PP96075


Although some theoretical predictions have been made, no experimental evidence of chaotic behaviour in plant physiological responses has been reported. Here we present observations of period doubling and tripling in higher plants. For leaf bioelectric and temperature responses of maize, tomato, and burweed plants to rhythmical light, two different routes to chaos were found experimentally. One was via successive period-doubling and the other via the formation of intermittently chaotic oscillations from a subharmonic synchronisation. Because these effects appeared in intact plants, under conditions close to those found in nature, they may have wide significance, including for plant phylogenesis.

Item Details

Item Type:Refereed Article
Research Division:Physical Sciences
Research Group:Medical and biological physics
Research Field:Biological physics
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Shabala, SN (Professor Sergey Shabala)
UTAS Author:Delbourgo, R (Professor Robert Delbourgo)
UTAS Author:Newman, IA (Dr Ian Newman)
ID Code:10032
Year Published:1997
Web of Science® Times Cited:15
Deposited By:Physics
Deposited On:1997-08-01
Last Modified:2011-08-11

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