| Registro completo |
| Provedor de dados: |
5
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| País: |
France
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| Título: |
Diazotrophs: a non-negligible source of nitrogen for the tropical coral Stylophora pistillata
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| Autores: |
Benavides, Mar
Houlbreque, Fanny
Camps, Mercedes
Lorrain, Anne
Grosso, Olivier
Bonnet, Sophie
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| Data: |
2016-09
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| Ano: |
2016
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| Palavras-chave: |
Scleractinian corals
Heterotrophic nutrition
Cyanothece
N-2 fixation
New Caledonia
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| Resumo: |
Corals aremixotrophs: they are able to fix inorganic carbon through the activity of their symbiotic dinoflagellates and to gain nitrogen from predation on plankton and uptake of dissolved organic and inorganic nutrients. They also live in close association with diverse diazotrophic communities, inhabiting their skeleton, tissue and mucus layer, which are able to fix dinitrogen (N-2). The quantity of fixed N-2 transferred to the corals and its distribution within coral compartments as well as the quantity of nitrogen assimilated through the ingestion of planktonic diazotrophs are still unknown. Here, we quantified nitrogen assimilation via (i) N-2 fixation by symbiont diazotrophs, (ii) ingestion of cultured unicellular diazotrophs and (iii) ingestion of natural planktonic diazotrophs. We estimate that the ingestion of diazotrophs provides 0.76 Alpha +/- 0.15 mu g N cm(-2) h(-1), suggesting that diazotrophs represent a non-negligible source of nitrogen for scleractinian corals.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00356/46678/72967.pdf
DOI:10.1242/jeb.139451
https://archimer.ifremer.fr/doc/00356/46678/
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| Editor: |
Company Of Biologists Ltd
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| Relação: |
info:eu-repo/grantAgreement/EC/FP7/625185/EU//DIADOM
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| Formato: |
application/pdf
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| Fonte: |
Journal Of Experimental Biology (0022-0949) (Company Of Biologists Ltd), 2016-09 , Vol. 219 , N. 17 , P. 2608-2612
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| Direitos: |
info:eu-repo/semantics/openAccess
restricted use
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