Uptake of D-glucose and L-proline by oligotrophic and heterotrophic marine bacteria
- 1 April 1980
- journal article
- research article
- Published by Canadian Science Publishing in Canadian Journal of Microbiology
- Vol. 26 (4) , 454-459
- https://doi.org/10.1139/m80-075
Abstract
The transport systems of the oligotrophic bacterium 486 for D-glucose and L-proline have been compared with those of the heterotrophic bacterium RP-303. Kinetic studies demonstrated that the rates of D-glucose and L-proline uptake by the two organisms were saturable processes. The apparent Km values of strain 486 for D-glucose and L-proline were 13.0 μM and 0.2 μM, respectively, whereas those of strain RP-303 were 3.2 μM for D-glucose and 1.8 μM for L-proline. Competition studies indicated that the D-glucose transport system of each bacterium was highly specific for D-glucose. The L-proline transport system of the oligotrophic bacterium 486 had a broad specificity, whereas that of the heterotrophic bacterium RP-303 had a narrow one.This publication has 6 references indexed in Scilit:
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