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Suppression of soft spots and excited modes in the shape deformation model with spatio-temporal growth noise

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dc.contributor.author 津川, 暁 ja
dc.date.accessioned 2020-02-17T07:07:39Z en
dc.date.available 2020-02-17T07:07:39Z en
dc.date.issued 2020-02-07 en
dc.identifier.issn 0022-5193 en
dc.identifier.uri http://hdl.handle.net/10061/13969 en
dc.description.abstract The shapes of plant organs such as sepals are precise and reproducible, although the cells composing these organs are highly heterogeneous. We investigate the collective behavior of a shape deformation model with spatio-temporal fluctuations in elasticity (Hong et al., Dev. Cell, 38, 15, 2016). It is shown that the spatio-temporal growth noise has two opposing effect: the temporal noise promotes the reproducibility of the organ shape, whereas the spatial noise disturbs it, leading to the organ undergoing an abnormal shape deformation. To understand how such abnormality can emerge, we study the eigenvectors of the correlation matrix of the growth velocity. It is revealed that the anomalous shape deformations can be created by two independent factors: (1) excited modes where the orientations of the eigenvectors with m ≥ 2 are spatially correlated, and/or (2) soft spots where spot structures with high fluctuations in the magnitudes of the eigenvectors appear non-uniformly. en
dc.language.iso en en
dc.publisher Elsevier en
dc.rights This is an open access article distributed under the terms of the Creative Commons CC-BY license en
dc.subject Plant morphogenesis en
dc.subject Elasticity en
dc.subject Shape deformation en
dc.subject Finite element method en
dc.title Suppression of soft spots and excited modes in the shape deformation model with spatio-temporal growth noise en
dc.type.nii Journal Article en
dc.contributor.transcription ツガワ, サトル ja
dc.contributor.alternative Tsugawa, Satoru en
dc.textversion publisher en
dc.identifier.jtitle Journal of Theoretical Biology en
dc.identifier.volume 486 en
dc.relation.doi 10.1016/j.jtbi.2019.110092 en
dc.identifier.NAIST-ID 74655515 en


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