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The Utilization of Dissolved Free Amino Acids by Estuarine Microorganisms
Crawford, C. C. Hobbie, J. E. Webb, K. L.
Crawford, C. C.
Hobbie, J. E.
Webb, K. L.
Abstract
The importance of bacteria in the cycling of carbon in the Pamlico River estuary was studied by measuring the rates of uptake of organic compounds. Our methods allowed analysis with the Michaelis-Menten kinetics equations, and both the rates of uptake of dissolved free amino acids (DFAA) and glucose as well as the percentage of carbon subsequently respired as CO2 were determined. In addition, the concentrations of the amino acids in the water were determined using ion exchange chromatography. Other tests included measurements of primary productivity and of the effects of the other amino acids in the water upon the uptake of one amino acid. (...)
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1974
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Biological Sciences Peer-Reviewed Articles
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Virginia Institute of Marine Science