Calmodulin antagonists inhibit the phytochrome‐induced appearance of two nuclear encoded transcripts in radish cotyledons

FEBS Letters

Fourcroy, Pierre¹  Pronost, Stephane²  Klein-Eude, Dominique² 

[1] CNRS URA 573, Biologie et Physiologie Végétales, ENSAM-INRA, 2 place Viala, 34060 Montpellier Cedex 1, France;CNRS URA 203, Faculté des Sciences de Rouen, BP 118, 76134 Mont Saint Aignan Cedex, France

关键词: Calmodulin antagonist;    Light induction;    Phytochrome;    Signal transduction;    (Radish seedlings);    TFP;    trifluoperazine;    W-7;    (N-(6-aminohexyl)-5-chloronaphthalene-1 -sulfonamide);   

DOI  :  10.1016/0014-5793(90)80612-M

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

The effects of two calmodulin antagonists on the phytochrome-mediated appearance of two nuclear encoded transcripts in radish cotyledons have been investigated. The extent of inhibition of transcript accumulation was dependent of the time ellapsed between the administration of trifluoperazine and the light stimulus. When 1 mM trifluoperazine was administered to the seedlings 8 h before red light irradiation, the inhibition of transcript accumulation was up to 62% for the chlorophyll binding protein mRNA and 56% for the ribulose 1,5-bisphosphate carboxylase small subunit mRNA. Similar results were obtained with W-7 (0.1 mM).

【 授权许可】

Unknown