Plant Physiol. Illumina
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Plant Physiology 65:563-565 (1980)
© 1980 American Society of Plant Biologists

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Short Communication

Effect of Cold on Endogenous Fucosyl Transferase Activity in Corn Roots 1

Douglas W. James, Jr.2 and Russell L. Jones3

Department of Botany, University of California, Berkeley, California 94720

Incubation of excised, 1-centimeter long root tips of corn in chilled distilled H2O increases the activity of extractable GDP fucose: polysaccharide fucosyl transferase. Enhancement of transferase activity is optimal at 10 C and incubation at this temperature for 8 hours causes a 3- to 5-fold stimulation of activity. Transfer of roots from 10 to 30 C reverses the enhancement of enzyme activity although reciprocal transfer of roots from 30 to 10 C does not stimulate the accumulation of transferase activity.

2 Present address: Department of Biochemistry, University of Texas Health Science Center, San Antonio, Texas 78284.

3 To whom reprint requests should be sent.

1 This research was supported by Grant PCM 75-18870 from the National Science Foundation.






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ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 1980 by the American Society of Plant Biologists