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Journal articles

Regulation of chain length in two diatoms as a growth-fragmentation process

Abstract : Chain formation in diatoms is relevant because of several aspects of their adaptation to the ecosystem. However, the tools to quantify the regulation of their assemblage and infer specific mechanisms in a laboratory setting are scarce. To address this problem, we define an approach based on a statistical physics model of chain growth and separation in combination with experimental evaluation of chain-length distributions. Applying this combined analysis to data from Chaetoceros decipiens and Phaeodactylum tricornutum, we find that cells of the first species control chain separation, likely through a cell-to-cell communication process, while the second species only modulates the separation rate. These results promote quantitative methods for characterizing chain formation in several chain-forming species and in diatoms in particular.
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https://hal.archives-ouvertes.fr/hal-01528511
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Submitted on : Monday, May 29, 2017 - 11:25:12 AM
Last modification on : Wednesday, December 8, 2021 - 9:22:03 AM

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Marco Gherardi, Alberto Amato, Jean-Pierre Bouly, Soizic Cheminant, Maria Immacolata Ferrante, et al.. Regulation of chain length in two diatoms as a growth-fragmentation process. Physical Review E , American Physical Society (APS), 2016, 94 (2), pp.22418. ⟨10.1103/PhysRevE.94.022418⟩. ⟨hal-01528511⟩

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