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	Provedor de dados ArchiMer (1) Autor Bertrand, J (1) Blanc, F (1) Bonin, P (1) Esteves, J (1) Mille, G (1) Palavra-chave Bacteria (1) Biogeochemistry (1) Comparative studies (1) Denitrification (1) Environmental conditions (1) Experimental research (1) MED (1) Metabolism (1) Methodology (1) Nitrates (1) Nitrogen cycle (1) Oil pollution (1) Reduction (1) Sediment chemistry (1) Mais... Tipo do documento Text (1) Ano 1984 (1) País France (1) Idioma Francês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Reduction du nitrate dans les sediments marins. Comparaison des activites mesurees in vitro et in situ ArchiMer Esteves, J; Bonin, P; Blanc, F; Mille, G; Bertrand, J. In vitro nitrate reduction in hydrocarbon-polluted marine sediments has been studied by flow-through system. By analysing the rate of nitrate comsumption as a function of nitrate concentration the authors determined the Michaelis-Menten kinetics parameters. (km = 330 mu M; vax = 2.0 mu M/g super(-1)/h super(-1). The authors found a value of 60 mu M/m super(-2)/h super(-1) for the rate of in vitro nitrate consumption derived from the above kinetic parameters and from the nitrate concentration in the sediment. In parallel a value of 67.4 mu M/m super(-2)/h super(-1) was found for the rate of nitrate consumption under in situ conditions. The great similarity between both results would favor the in vitro technique as a valid and more convenient one. Tipo: Text Palavras-chave: MED; Biogeochemistry; Oil pollution; Methodology; Environmental conditions; Experimental research; Comparative studies; Metabolism; Bacteria; Sediment chemistry; Reduction; Nitrates; Denitrification; Nitrogen cycle. Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/acte-979.pdf Registros recuperados: 1 Primeira ... 1 ... Última

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