光敏色素介导的芥菜幼苗（Sinapis alba L.）中环腺苷酸的快速变化。

Phytochrome-mediated rapid changes of cyclic AMP in mustard seedlings (Sinapis alba L.).

机构信息

Institut für Pharmazeutische Biologie und Biologisches Institut II, Universität Freiburg i.Br., Schänzlestr. 9, D-78, Freiburg i.Br., Federal Republic of Germany.

出版信息

Planta. 1975 Jan;125(1):81-5. doi: 10.1007/BF00388877.

DOI:10.1007/BF00388877

PMID:24435304

Abstract

A 5-min red light pulse which operates exclusively through phytochrome leads to a strong but transient decrease of the level of cAMP in the cotyledons of the mustard seedling. The strongest response is observed approximately 30 min after the red light pulse. In the axis system (hypocotyl plus taproot) the red light pulse causes a rapid but modest increase of the cAMP contents. The question of whether the observed changes of the tissue contents of cAMP can be regarded as intermediate steps in the causal sequence between Pfr (far-red absorbing form of phytochrom) and some photoresponses is discussed.

摘要

5 分钟的红光脉冲，其作用完全通过光敏色素产生，导致芥菜幼苗子叶中 cAMP 水平的强烈但短暂的下降。在红光脉冲后约 30 分钟观察到最强的反应。在轴系统（下胚轴加主根）中，红光脉冲引起 cAMP 含量的快速但适度的增加。所观察到的 cAMP 组织含量的变化是否可以被视为 Pfr（远红光吸收形式的光敏色素）与某些光响应之间因果序列中的中间步骤，这是一个值得讨论的问题。