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. 1978 Jan;138(1):69-71.
doi: 10.1007/BF00392918.

Induction by light of hydroxycinnamoyl-CoA: Quinate hydroxycinnamoyl transferase in buckwheat (Fagopyrum esculentum Moench): Absence of feed-forward control by trans-cinnamate

B Ulbrich  1 , N Amrhein
Affiliations

Induction by light of hydroxycinnamoyl-CoA: Quinate hydroxycinnamoyl transferase in buckwheat (Fagopyrum esculentum Moench): Absence of feed-forward control by trans-cinnamate

B Ulbrich et al. Planta. 1978 Jan.

Abstract

The light-induced increase in the activity of hydroxycinnamoyl-CoA: quinate hydroxycinnamoyl transferase (CQT) in hypocotyls of etiolated buckwheat seedlings is not suppressed by aminooxy acetic acid, an inhibitor of cinnamic acid formation in this tissue. Incubation of hypocotyls in 2 mmol l(-1) trans-cinnamate in the dark does not increase CQT activity. Thus, trans-cinnamate does not appear to mediate the effect of light on CQT in buckwheat hypocotyls.

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