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The little worm Xavier Bailly studies has the capability of photosymbiosis, which derives from the fact that the worm - like corals - lives in symbiosis with algae. The worm has 40,000 to 50,000 (unicellular) microalgae located under its skin. The algae use photosynthesis and thus nurture the worm. So we have to do with a worm that can live of photosynthesis, domesticate algae and collaborate with it. The worm is also capable of regenerating its brain and regain its usual functions. Where does the animal get the information from how to do this? This information could of course help cure degenerative illnesses: tumors and aging diseases. The Symsagittifera roscoffensis, the mighty flatworm in question, also helps to understand biology and ecology (the photosymbiosis in particular) of coral reefs. The coral reefs that have lost their algae lose their color, and die. The equilibrium of algae and the coral reefs has been made impossible by the acidification of the sea. People should learn at a very young age how special this photosymbiosis is. It could make them respect the marvels of nature and understand biology.

expert

  • Xavier Bailly

date

21/11/2015

lieu

Musée de l’Homme, Paris

est chercheur en biologie marine à la Station Biologique de Roscoff et à l'université Pierre et Marie Curie. Il travaille sur les cycles de vie de modèles marins et le développement d’outils de génétique moléculaire associés. Il s’intéresse particulièrement aux photosymbioses animales.

— ENQUÊTE : Devenir terriens
— PRODUCTION : Blackmarket for Useful Knowledge and Non-Knowledge No. 18
— ÉVÉNEMENT : Devenir terriens : dialogues et exercices pour rétrécir et étendre l’humain

est chercheur en biologie marine à la Station Biologique de Roscoff et à l'université Pierre et Marie Curie. Il travaille sur les cycles de vie de modèles marins et le développement d’outils de génétique moléculaire associés. Il s’intéresse particulièrement aux photosymbioses animales.

— ENQUÊTE : Devenir terriens
— PRODUCTION : Blackmarket for Useful Knowledge and Non-Knowledge No. 18
— ÉVÉNEMENT : Devenir terriens : dialogues et exercices pour rétrécir et étendre l’humain

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