山柰酚对光合磷酸化的抑制作用。
Inhibition of photophosphorylation by kaempferol.
机构信息
Department of Botany, University of Illinois, Urbana, Illinois 61801.
出版信息
Plant Physiol. 1974 Feb;53(2):304-6. doi: 10.1104/pp.53.2.304.
Abstract
Kaempferol, a naturally occurring flavonol, inhibited coupled electron transport and both cyclic and noncyclic photophosphorylation in isolated pea (Pisum sativum) chloroplasts. Over a concentration range which gave marked inhibition of ATP synthesis, there was no effect on basal or uncoupled electron flow or light-induced proton accumulation by isolated thylakoids. It is suggested that kaempferol acts as an energy transfer inhibitor.
摘要
山奈酚是一种天然存在的类黄酮，可抑制分离的豌豆（Pisum sativum）叶绿体中的偶联电子传递以及环式和非环式光合磷酸化。在对 ATP 合成有明显抑制作用的浓度范围内，对分离的类囊体的基础电子流或非耦合电子流或光照诱导的质子积累没有影响。因此，山奈酚可作为一种能量转移抑制剂。
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