Plant Diversity ›› 2008, Vol. 30 ›› Issue (6): 699-705.DOI: 10.3724 SP.J.1143.2008.08043

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Overexpression of OsWRKY72 Gene Causes Auxin Signaling Passway in Arabidopsis

SONG Yu1 , 2 , LIU Dong-Mei1 , 2 , YU Di-Qiu1   

  1. 1 Laboratory of Plant Molecular Biology , Xishuangbanna Tropical Botanical Garden , Chinese Academy of Sciences, Kunming 650223 , China ; 2 Graduate University of Chinese Academy of Sciences , Beijing 100049
  • Received:2008-03-21 Online:2008-12-25 Published:2008-12-25
  • Contact: YU Di-Qiu1

Abstract: The transcription factors WRKY protein superfamily are widely presented in plants . It is well known that a majority of the plant biological processes are modulated by WRKY transcription factors . And here we focused on OsWRKY72. Genetic analysis showed the apical dominance of 35S:OsWRKY72 transgenic Arabidopsis thaliana was repressed and the transgenic plants had significantly more shoot branches comparing with the control plants . Besides the reduced apical dominance, the phenotypes , including curled leaves and short fruits in transgenic Arabidopsis, were similar to those of the characteristic mutants deficiency in auxin singal transduction. These results suggested that OsWRKY72 played an important role in the auxin signaling pathway.

Key words: OsWRKY72

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