The auxin‐binding protein Nt‐ERabp1 alone activates an auxin‐like transduction pathway

FEBS Letters

Barbier-Brygoo, H¹  Leblanc, N¹  Perrot-Rechenmann, C¹ 

[1]Perception and Auxin Transport, Institut des Sciences Végétales, Bât. 23, Avenue de la Terrasse, CNRS, 91198 Gif sur Yvette Cedex, France

关键词: Auxin-binding protein;    ABP1;    Auxin;    Tobacco protoplast;    Hyperpolarization;   

DOI  :  10.1016/S0014-5793(99)00398-1

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Hyperpolarization of tobacco protoplasts is amongst the earliest auxin responses described. It has been proposed that the auxin-binding protein, ABP1, or a related protein could be involved in the first step of auxin perception at the plasma membrane. Using for the first time homologous conditions for interaction between the protein Nt-ERabp1 or a synthetic peptide corresponding to the C-terminus and tobacco protoplasts, we have demonstrated that both can induce the hyperpolarization response. The results show that Nt-ERabp1 or the C-terminal peptide alone activates the auxin pathway from the outer face of the plasma membrane.

【 授权许可】

Unknown