Glucose, fructose, and sucrose influx into Nitella flexilis
The uptake of 14 C-labeled glucose, fructose, and sucrose into Nitella flexilis has been investigated by varying concentrations of sugars, by the use of competition experiments, by the use of inhibitors, and by varying conditions of temperature. The kinetic studies and the complex interaction betwee...
| Published in: | Canadian Journal of Botany |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Canadian Science Publishing
1974
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| Subjects: | |
| Online Access: | http://dx.doi.org/10.1139/b74-001 http://www.nrcresearchpress.com/doi/pdf/10.1139/b74-001 |
| Summary: | The uptake of 14 C-labeled glucose, fructose, and sucrose into Nitella flexilis has been investigated by varying concentrations of sugars, by the use of competition experiments, by the use of inhibitors, and by varying conditions of temperature. The kinetic studies and the complex interaction between the sugars were characteristic of a carrier-mediated system maintained by metabolic energy. Glucose and fructose appear to have different sites of entry though each can influence the other. It is suggested that sucrose is hydrolyzed at the plasmalemma, glucose and fructose then entering the cells. |
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