How does a low-level multicellular organism coordinate its cells to achieve organism-level behaviours? We studied this process in the case of phototaxis (swimming towards the light) of the colonial green algae Volvox and we discovered that coordination is achieved by a common cellular response program to environmental stimuli, a precise morphological organization and a mutual 'fine-tuning' of the biochemical time scales with the characteristic spinning frequency of the colony in its viscous physical environment.
Coffee and cookies will be served 15 minutes before the start of the seminar
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