Molecular insights into the Darwin paradox of coral reefs from the sea anemone Aiptasia

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2023
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Science Advances. American Association for the Advancement of Science (AAAS). 2023, 9(11), eadf7108. eISSN 2375-2548. Available under: doi: 10.1126/sciadv.adf7108
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Symbiotic cnidarians such as corals and anemones form highly productive and biodiverse coral reef ecosystems in nutrient-poor ocean environments, a phenomenon known as Darwin’s paradox. Resolving this paradox requires elucidating the molecular bases of efficient nutrient distribution and recycling in the cnidarian-dinoflagellate symbiosis. Using the sea anemone Aiptasia, we show that during symbiosis, the increased availability of glucose and the presence of the algae jointly induce the coordinated up-regulation and relocalization of glucose and ammonium transporters. These molecular responses are critical to support symbiont functioning and organism-wide nitrogen assimilation through glutamine synthetase/glutamate synthase–mediated amino acid biosynthesis. Our results reveal crucial aspects of the molecular mechanisms underlying nitrogen conservation and recycling in these organisms that allow them to thrive in the nitrogen-poor ocean environments.

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ISO 690CUI, Guoxin, Migle K. KONCIUTE, Lorraine LING, Luke ESAU, Jean-Baptiste RAINA, Baoda HAN, Octavio R. SALAZAR, Nils RÄDECKER, Christian R. VOOLSTRA, Manuel ARANDA, 2023. Molecular insights into the Darwin paradox of coral reefs from the sea anemone Aiptasia. In: Science Advances. American Association for the Advancement of Science (AAAS). 2023, 9(11), eadf7108. eISSN 2375-2548. Available under: doi: 10.1126/sciadv.adf7108
BibTex
@article{Cui2023-03-17Molec-66812,
  year={2023},
  doi={10.1126/sciadv.adf7108},
  title={Molecular insights into the Darwin paradox of coral reefs from the sea anemone Aiptasia},
  number={11},
  volume={9},
  journal={Science Advances},
  author={Cui, Guoxin and Konciute, Migle K. and Ling, Lorraine and Esau, Luke and Raina, Jean-Baptiste and Han, Baoda and Salazar, Octavio R. and Rädecker, Nils and Voolstra, Christian R. and Aranda, Manuel},
  note={Article Number: eadf7108}
}
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