학술논문
THE GLUCOSE TRANSPORT SYSTEM OF AMPHORA COFFEAEFORMIS (BACILLARIOPHYCEAE).
Document Type
Article
Author
Source
Subject
*AMPHORAS
*FRUCTOSE
*MANNOSE
*GLUCOSE
*INGESTION
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Language
ISSN
0022-3646
Abstract
Amphora coffeaeformis (Ag.) kütz. var. perpusilla (Grun.) Cleve took up glucose by an inducible transport system. The system was induced by D-fructose D-mannose, as well as glucose. Some D-pentoses also induced a glucose uptake system but it may not be the same one as that induced by hexose. D-fructose, D-mannose and 2-deoxy-D-glucose inhibited 2 mM glucose uptake at equimolar concentration, but D-pentoses did not. The uptake system decayed in ca. 5 h in the absence of glucose. The half-saturation constant for uptake , K[SUB8] was ca. 0.1 mM glucose with a maximum uptake rate, V[SUBmax] = 0.4 nmol/10[SUP6] cells min[SUP-1]. [ABSTRACT FROM AUTHOR]