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Influence of Light and Sucrose on N-Glucosyl Pyrazon Formation in Red Beet

Published online by Cambridge University Press:  12 June 2017

G. R. Stephenson ,
D. R. Dilley  and
S. K. Ries
G. R. Stephenson
Affiliation:
Dep. of Hort., Michigan State Univ., East Lansing, Michigan Dep. of Botany, Univ. of Guelph, Ontario, Canada
D. R. Dilley
Affiliation:
Dep. of Hort., Michigan State Univ., East Lansing, Michigan
S. K. Ries
Affiliation:
Dep. of Hort., Michigan State Univ., East Lansing, Michigan
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Abstract

The conversion of 5-amino-4-chloro-2-phenyl-3(2H)-pyridazinone (pyrazon) to N-chloro-4-phenyl-3(2H)-pyridazinone glucosamine (hereinafter referred to as N-glucosyl pyrazon) in intact seedlings and in leaf discs of red beets (Beta vulgaris L., var. Detroit Dark Red) was significantly greater in the light than in the dark. Pyrazon conjugation with glucose was dependent on the carbohydrate status of the leaf tissue, since the formation of the N-glucoside in the dark was further reduced with dark pretreatment but could be restored to the level observed in the light by infiltrating the leaf discs with supplemental sucrose.

Type
Research Article
Information
Weed Science , Volume 19 , Issue 4 , July 1971 , pp. 406 - 409
Copyright
Copyright © Weed Science Society of America 

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References

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