| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Influence of nitrogen enrichment on size-fractionated in vitro carboxylase activities of phytoplankton from Thau Lagoon (Coastal Mediterranean Lagoon, France)
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| Autores: |
Fouilland, Eric
Descolas Gros, Chantal
Collos, Yves
Vaquer A, André
Souchu, Philippe
Gasc, Anne
Bibent, Bertrand
Pons, Virginie
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| Data: |
2002-08
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| Ano: |
2002
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| Palavras-chave: |
Heterotrophy
Autotrophy
Nitrogen enrichments
Size fractionated phytoplankton
Carboxylase activities
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| Resumo: |
The influence of dissolved inorganic and organic nitrogen (DIN and DON) enrichments on pools of enzymes responsible for CO2 fixation by the Calvin-Benson (Rubisco) and beta-carboxylation pathways (beta-carboxylases) were studied in a natural plankton assemblage. The plankton community from a coastal Mediterranean lagoon were incubated in situ for 24 h with initially ammonium, nitrate and DON (taurine) enrichments and compared to a control without any enrichment. An increase of small picophytoplankton and diatom biomass was observed in the enriched inorganic nitrogen treatments 7 - 10 h after the initial enrichment. Phytoplankton biomass decreased in the control and under taurine enrichment suggesting an inorganic nitrogen limitation of phytoplankton growth.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
http://archimer.ifremer.fr/doc/2002/publication-451.pdf
DOI:10.1016/S0022-0981(02)00235-6
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| Editor: |
Elsevier
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| Relação: |
http://archimer.ifremer.fr/doc/00000/451/
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| Formato: |
application/pdf
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| Fonte: |
Journal of Experimental Marine Biology and Ecology (0022-0981) (Elsevier), 2002-08 , Vol. 275 , N. 2 , P. 147-171
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| Direitos: |
2002 Elsevier Science B.V. All rights reserved
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