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Chloroplast Alkaline Fructose 1,6-Bisphosphatase Exists in a Membrane-Bound Form
Vol. 70, No. 3 (Sep., 1982), pp. 728-734
Published by: American Society of Plant Biologists (ASPB)
Stable URL: http://www.jstor.org/stable/4267576
Page Count: 7
You can always find the topics here!Topics: Chloroplasts, Enzymes, Thylakoids, pH, Soybeans, Enzyme activity, Centrifugation, Plants, Chemical suspensions, Incubation
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An alkaline fructose 1,6-bisphosphatase activity associated with soybean (Glycine max cv Beeson) chloroplasts appears to be membrane-bound. The pH optimum of the membrane-associated activity corresponds to that found for activity associated with the stroma. Illumination of washed thylakoids results in an increase in alkaline fructose 1,6-bisphosphatase activity in the absence of any added stromal factors. Exposure to pH 8.0 results in a partial release of enzyme activity from the membrane. The activation status of the enzyme does not appear to alter its association with the membrane.
Plant Physiology © 1982 American Society of Plant Biologists (ASPB)