Plant and Cell Physiology, 1984, Vol. 25, No. 7 1323-1327
© 1984
Short Communication |
NADP+-Dependent Sorbitol Dehydrogenase Found in Apple Leaves1
Fruit Tree Research Station, Ministry of Agriculture, Forestry and Fisheries Yatabe, Ibaraki 305, Japan
An NADP+-dependent sorbitol dehydrogenase that catalyzes sorbitol and glucose was found in apple leaves. The partially purified enzyme had optimum activity at pH 9.6 and a Km value of 128 mM for sorbitol. Among the polyols studied, this enzyme showed the most activity for sorbitol.
1This paper is contribution A-173 of the Fruit Tree Research Station.
(Received June 4, 1984; Accepted July 31, 1984)
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