Arabidopsis WRKY2 Transcription Factor may be Involved in Osmotic Stress Response

doi:10.3724/SP.J.1143.2009.09046

Plant Diversity ›› 2009, Vol. 31 ›› Issue (05): 427-432.DOI: 10.3724/SP.J.1143.2009.09046

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Arabidopsis WRKY2 Transcription Factor may be Involved in Osmotic Stress Response

JIANG Wen-Bo^{1 , 2} , YU Di-Qiu¹

1 Xishuangbanna Tropical Botanical Garden , Chinese Academy of Sciences, Kunming 650223 , China;
2 Graduate University of Chinese Academy of Sciences, Beijing 100049 , China

Received:2009-03-12 Online:2009-10-25 Published:2009-10-25
Contact: YU Di-Qiu

拟南芥WRKY2 转录调控因子可能参与调控渗透胁迫反应

江文波^{1 , 2} , 余迪求¹

1 中国科学院西双版纳热带植物园, 云南昆明 650223 ; 2 中国科学院研究生院, 北京 100049

通讯作者: 余迪求

Abstract

Abstract: The fact that Arabidopsis WRKY2 protein was nuclear-localized supported that WRKY2 functioned as a transcription factor. The expression levels of WRKY2 in leaves were the highest in all tissues. The expression profile indicated that the expression levels of WRKY2 were elevated by NaCl and mannitol treatments, while which were not induced by other treatments including KCl , LiCl , CaCl2 , NaH2 PO4 , pathogenic germs , cold , heat and ABA . These results suggested that WRKY2 might be involved in osmotic stress induced by NaCl and mannitol .

Key words: AtWRKY2

摘要： 拟南芥WRKY2 蛋白定位于细胞核, 表明WRKY2 是转录调控因子。WRKY2 在不同器官组织中的表达分析显示在叶的表达量是最高的。在各种逆境条件下的表达分析显示: WRKY2 的表达受NaCl 和甘露醇比较强的诱导; KCl、LiCl、CaCl2 和NaH2 PO4 均不诱导WRKY2 的表达; ABA 处理基本上不影响WRKY2 基因的表达; 另外, WRKY2 的表达也不受病原菌、冷害和高温的诱导。这些结果表明WRKY2 可能在NaCl 和甘露醇引起的渗透胁迫反应中起一定的作用。

关键词: AtWRKY2, 转录调控因子, NaCl , 甘露醇, 渗透胁迫

CLC Number:

Q 945

JIANG Wen-Bo^, , YU Di-Qiu. Arabidopsis WRKY2 Transcription Factor may be Involved in Osmotic Stress Response[J]. Plant Diversity, 2009, 31(05): 427-432.

江文波1 , 2 , 余迪求1 . 拟南芥WRKY2 转录调控因子可能参与调控渗透胁迫反应[J]. Plant Diversity, 2009, 31(05): 427-432.

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Arabidopsis WRKY2 Transcription Factor may be Involved in Osmotic Stress Response

拟南芥WRKY2 转录调控因子可能参与调控渗透胁迫反应

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