Plant Diversity ›› 2013, Vol. 35 ›› Issue (1): 41-47.DOI: 10.7677/ynzwyj201312046

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Expression Profiles of Arabidopsis WRKY68 Transcription Factor

 WANG  Xue-Lan-1, LIN  Liang-Bin-1, YU  Di-Qiu-2   

  1. 1 College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming 650201, China;
    2 Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming 650223, China
  • Received:2012-04-04 Online:2013-01-25 Published:2012-05-25


The transcription factors WRKY protein superfamily are mainly presented in plants,which contains at least 74 members in Arabidopsis. It can be classified into three groups according to the number of WRKY domains and the features of their zincfingerlike motif. Arabidopsis WRKY68 is one of the group Ⅱ WRKY proteins. GUS staining and qRTPCR analysis showed that the expression of WRKY68 in roots was the highest in all tissues and the second was in old siliques and young leaves. The expression profiles indicated that the expression levels of WRKY68 were elevated by IAA and heat treatments,and slightly induced by PstDC3000, JA, SA, NAA while which were inhibited by other treatments including Botrytis, NaCl, mannitol, PEG, dehydration, ACC, ABA.These results suggested that WRKY68 might be involved in plant morphogenesis and development which is regulated by auxin and temperature.

Key words: AtWRKY68, GUS staining, Biotic stress, Abiotic stress, Plant hormones

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