IMIS | Vlaams Instituut voor de Zee
 

Vlaams Instituut voor de Zee

Platform voor marien onderzoek

IMIS

Publicaties | Instituten | Personen | Datasets | Projecten | Kaarten
[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina

Photosynthetic capacity of the endosymbiotic dinoflagellate Cladocopium sp. is preserved during digestion of its jellyfish host Mastigias papua by the anemone Entacmaea medusivora
Vega de Luna, F.; Dang, K.-V.; Cardol, M.; Roberty, S.; Cardol, P. (2019). Photosynthetic capacity of the endosymbiotic dinoflagellate Cladocopium sp. is preserved during digestion of its jellyfish host Mastigias papua by the anemone Entacmaea medusivora. FEMS Microbiol. Ecol. 95(10): fiz141. https://hdl.handle.net/10.1093/femsec/fiz141
In: FEMS Microbiology Ecology. Federation of European Microbiological Societies: Amsterdam. ISSN 0168-6496; e-ISSN 1574-6941, meer
Peer reviewed article  

Beschikbaar in  Auteurs 

Trefwoord
    Marien
Author keywords
    endosymbiotic dinoflagellate Cladocopium; medusivorous sea anemone;golden jellyfish; photosynthesis; Palau meromictic lake

Auteurs  Top 

Abstract
    The sea anemone Entacmaea medusivora (Actiniaria, Anthozoa) commonly feeds on the golden jellyfish Mastigias papua (Rhizostomeae, Scyphozoa) which harbours an endosymbiotic dinoflagellate of the genus Cladocopium (Symbiodiniaceae). In this study, we monitored the photosynthetic activity of the endosymbiotic microalgae while their host jellyfish were ingested and digested by starved medusivorous anemones. By analyzing the photosynthetic yield of photosystem II, we observed that Cladocopium cells remain photosynthetically competent during the whole digestion process, thus confirming the exceptional resistance of Symbiodiniaceae to digestive enzymes. In the gastric cavity of E. medusivora, Cladocopium cells release oxygen, which could broadly stimulate the gastric microbiotic flora of the sea anemone. Ultimately, E. medusivora is not able to retain Cladocopium cells more than few days and physiologically-unaltered cells are therefore expelled in faecal pellets. The potential contribution of E. medusivora to maintain a reservoir of Cladocopium symbionts and its role in the life cycle of M. papua is discussed.

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs