Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/135287
Title: | Hydra Molecular Network Reaches Criticality at the Symmetry-Breaking Axis-Defining Moment |
Author: | Soriano i Fradera, Jordi Colombo, Cyril Ott, Albrecht |
Keywords: | Física de partícules Experiments Particle physics Experiments |
Issue Date: | 18-Dec-2006 |
Publisher: | American Physical Society |
Abstract: | We study biological, multicellular symmetry breaking on a hollow cell sphere as it occurs during hydra regeneration from a random cell aggregate. We show that even a weak temperature gradient directs the axis of the regenerating animal but only if it is applied during the symmetry-breaking moment. We observe that the spatial distribution of the early expressed, head-specific gene k s 1 has become scale-free and fractal at that point. We suggest the self-organized critical state to reflect long range signaling, which is required for axis definition and arises from cell next-neighbor communication. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevLett.97.258102 |
It is part of: | Physical Review Letters, 2006, vol. 97, num. 25, p. 258102 |
URI: | http://hdl.handle.net/2445/135287 |
Related resource: | https://doi.org/10.1103/PhysRevLett.97.258102 |
ISSN: | 0031-9007 |
Appears in Collections: | Articles publicats en revistes (Física de la Matèria Condensada) |
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601148.pdf | 358.22 kB | Adobe PDF | View/Open |
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