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Nutritional resources as positional information for morphogenesis in the stony coral Stylophora pistillata

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Kucken,  M.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

/persons/resource/persons184453

Deutsch,  A.
Max Planck Institute for the Physics of Complex Systems, Max Planck Society;

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Citation

Kucken, M., Rinkevich, B., Shaish, L., & Deutsch, A. (2011). Nutritional resources as positional information for morphogenesis in the stony coral Stylophora pistillata. Journal of Theoretical Biology, 275(1), 70-77.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0029-8D1F-7
Abstract
We are interested in deciphering the mechanisms for morphogenesis in the Red Sea scleractinian coral Stylophora pistillata with the help of mathematical models. Previous mathematical models for coral morphogenesis assume that skeletal growth is proportional to the amount of locally available energetic resources like diffusible nutrients and photosynthetic products. We introduce a new model which includes factors like dissolved nutrients and photosynthates, but these resources do not serve as building blocks for growth but rather provide some kind of positional information for coral morphogenesis. Depending on this positional information side branches are generated, splittings of branches take place and branch growth direction is determined. The model results are supported by quantitative comparisons with experimental data obtained from young coral colonies. (c) 2011 Elsevier Ltd. All rights reserved.