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园艺学报 ›› 2013, Vol. 40 ›› Issue (10): 1961-1969.

• 其它园艺植物 • 上一篇    下一篇

茶树低温胁迫转录因子CsICE的亚细胞定位及表达分析

尹 盈,张 玥,胡靖妍,周 琳,王明乐,房婉萍*,黎星辉*   

  1. (南京农业大学茶叶科学研究所,南京 210095)
  • 收稿日期:2013-05-20 出版日期:2013-10-25 发布日期:2013-10-25

Subcellular Localization and Expression Analysis of CsICE Transcription Factor Related to Cold Stress in Tea Plant

YIN Ying,ZHANG Yue,HU Jing-yan,ZHOU Lin,WANG Ming-le,FANG Wan-ping*,and LI Xing-hui*   

  1. (Tea Research Institute,Nanjing Agricultural University,Nanjing 210095,China)
  • Received:2013-05-20 Online:2013-10-25 Published:2013-10-25

摘要: 以茶树[Camellia sinensis(L.)O. Kuntze]品种‘迎霜’为试验材料,采用PCR技术扩增出与茶树低温胁迫相关转录因子CsICE的开放阅读框,长度783 bp。采用荧光定量PCR分析CsICE的表达量,结果表明CsICE在根、茎、叶、花和果中都有表达,在叶中表达量最高,是根、茎、果中表达量的4倍;在500 μmol ? L-1 ABA处理下,幼叶中CsICE表达峰值是对照的40倍,在4 ℃低温处理下,最高值是对照的20倍,在10%聚乙二醇6000处理的干旱条件下表达量最高值只有对照的5倍。亚细胞定位结果显示CsICE定位在细胞核上。

关键词: 茶, CsICE, 亚细胞定位, 表达量

Abstract: The 783 bp length ORF of transcription factor CsICE,related to the cold stress in tea plant [Camellia sinensis(L.)O. Kuntze],was amplified by PCR,and cultivar‘Yingshuang’was used as the material. The expression levels of CsICE were analyzed by real time quantitative PCR. The result showed that CsICE expressed in all the tissues,including roots,stems,leaves,flowers and fruits. Furthermore,the expression level in leaves was the highest,almost four times higher than that in roots,stems and fruits. The expression level of CsICE was 40 times under ABA stress(500 μmol ? L-1)higher than that in untreated sample,while under cold treatment at 4 ℃,it was 20 times higher than the control. Under 10% polyethyleneglycol treatment,the CsICE expression level was only 5 times higher than that in untreated sample. The localization assays result indicated that CsICE protein localized in the cell nucleus.

Key words: tea plant, CsICE, subcellular localization, expression level

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