MECHANISM OF ARABINOSE TRANSPORT IN TETRAHYMENA PYRIFORMIS
- 1 October 1962
- journal article
- research article
- Published by American Society for Microbiology in Journal of Bacteriology
- Vol. 84 (4) , 754-758
- https://doi.org/10.1128/jb.84.4.754-758.1962
Abstract
Cirillo, Vincent P. (Seton Hall College of Medicine and Dentistry, Jersey City, N.J.). Mechanism of arabinose transport in Tetrahymena pyriformis . J. Bacteriol. 84: 754–758. 1962.—The mechanism of sugar transport was studied in Tetrahymena pyriformis , using the nonmetabolizable sugar, l -arabinose. Arabinose transport does not result in accumulation against a concentration difference but shows a high Q 10 and is competitively inhibited by glucose. The addition of glucose to arabinose-equilibrated cells results in arabinose efflux against a concentration difference. These results are discussed in terms of carrier-mediated transport.Keywords
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