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珠眉海棠(Malus zumi Mats)盐应答MzSTO基因的克隆与表达分析
引用本文:蒋玉妆,李凌子,赵宇,李擎天,梁占锋,孔瑾.珠眉海棠(Malus zumi Mats)盐应答MzSTO基因的克隆与表达分析[J].中国农业大学学报,2013,18(1):88-93.
作者姓名:蒋玉妆  李凌子  赵宇  李擎天  梁占锋  孔瑾
作者单位:中国农业大学 农学与生物技术学院,北京,100193
基金项目:国家自然科学基金资助项目(31171940);北京市自然科学基金资助项目(6112012)
摘    要:通过微列阵芯片(Microarray)分析,从珠眉海棠盐胁迫cDNA文库中分离得到MzSTO (Salt tolerance protein)全长基因.结果表明:MzSTO基因cDNA全长1 066 bp,开放阅读框共729 bp,5'-UTR和3'-UTR的长度分别是49 bp和288 bp; MzSTO编码242个氨基酸,N端有2个保守的B-box锌指结构域(CX2CX8CX7CX2CX4HX8H);半定量RT-PCR表明MzSTO基因受到盐和干旱胁迫抑制,受冷处理诱导,并响应ABA(abscisic acid).以上结果表明MzSTO基因可能通过依赖ABA的途径参与非生物逆境胁迫.

关 键 词:珠眉海棠  MzSTO  非生物胁迫  RT-PCR
收稿时间:2012/4/17 0:00:00

Cloning and expression analysis of salt stress MzSTO gene from Malus zumi Mats
JIANG Yu-zhuang,LI Ling-zi,ZHAO yu,LI Qing-tian,LIANG Zhan-feng and KONG Jin.Cloning and expression analysis of salt stress MzSTO gene from Malus zumi Mats[J].Journal of China Agricultural University,2013,18(1):88-93.
Authors:JIANG Yu-zhuang  LI Ling-zi  ZHAO yu  LI Qing-tian  LIANG Zhan-feng and KONG Jin
Institution:*(College of Agronomy and Biotechnology,China Agricultural University,Beijing 100193,China)
Abstract:The full-length cDNA sequence of MzSTO gene was isolated from a cDNA library of Malus zumi.The full-length cDNA of MzSTO was 1 066 bp.The 5''-UTR and the 3''-UTR were 49 and 288 bp respectively.Its open reading frame of 729 bp encoded a protein of 242 amino acids.There were two B-box zinc-finger domains (CX2CX8CX7CX2CX4HX8H) near N-terminal.MzSTO was induced by low temperature stress and repressed by high-salinity and drought treatment,which was,also responsive to ABA (abscisic acid) treatment by semi-quantative RT-PCR.All the results showed that MzSTO was involved in response of abiotic stresses including salt, drought and cold stresses through a possible ABA-dependent pathway in Malus zumi.
Keywords:Malus zumi Mats  MzSTO  abiotic stresses  RT-PCR
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