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园艺学报 ›› 2010, Vol. 37 ›› Issue (2): 313-318.

• 研究报告 • 上一篇    下一篇

云南省蝴蝶兰上凤仙花坏死斑病毒的鉴定

郑元仙1;李永忠2;刘雅婷1,*;徐小刚1;叶 茂1;朱秋燕1   

  1. 1 云南农业大学农学与生物技术学院,昆明 650201;2 云南农业大学烟草学院,昆明 650201)
  • 收稿日期:2009-10-10 修回日期:2010-01-04 出版日期:2010-02-25 发布日期:2010-02-25

Identification of Impatiens necrosis spot virus from Phalaenopsis amabilis inYunnan

ZHENG Yuan-xian1;LI Yong-zhong 2;LIU Ya-ting1,*;XU Xiao-gang1;YE Mao1; ZHU Qiu-yan1   

  1. 1College of Agricultural and Biotechnology,Yunnan Agricultural University,Kunming 650201,China;2College of Tobacco Science,Yunnan Agricultural University,Kunming 650201,China)
  • Received:2009-10-10 Revised:2010-01-04 Online:2010-02-25 Published:2010-02-25

摘要: 2008 年对云南省主要花卉基地进行调查,获得症状表现为环斑、坏死,疑似番茄斑萎病毒属(Tospovirus)病毒的蝴蝶兰样品。应用生物测定,结合现代电镜技术、免疫试纸条检测技术初步确定为番茄斑萎病毒属的凤仙花坏死斑病毒(Impaliens necrotic spot virus,INSV),通过设计的4 对引物进行RT-PCR扩增和测序,获得核壳体蛋白(Nucleocapsid protein)基因核酸长度为886 nts,RNA M 编码的非结构蛋白(Nonstructure protein,NSm)基因核酸长度为681 nts,依赖于RNA 的RNA 聚合酶(RdRp)基因核酸长度为1 048 nts,测序结果在NCBI BLAST 网络数据库中比对,同时应用生物信息软件DNAman 比对,其与INSV的同源性都达90%以上,都证明分离到的病原物为凤仙花坏死斑病毒(INSV)。

关键词: 蝴蝶兰, 蝴蝶兰环斑病, 凤仙花坏死斑病毒, 病毒病

Abstract: Tospovirus,the only genus to infect plants in the Bunyaviridae family,can cause many crops and flowers to the serious disease in the tropics,the subtropics as well as the temperate zone area. This research surveyed the main flower fields of Yunnan Province in 2008. One sample with concentric rings spots and necrosis spots symptom was collected from Phalaenopsis amabilis in Kunming. By the biological techniques,electron microscope and ImmuStrip Test,it was confirmed that the plant was infected by Impatiens necrotic spot virus,belong to Tospovirus. Four pairs primers was used for RT-PCR,clone and sequencing,886 nts nucleic acid sequence of nucleocapsid protein,681 nts nucleic acid sequence of non-structure protein in RNA M and 1 048 nts fragment of RNA-dependent RNA polymerase(RdRp)were
obtained. By comparing with network database of NCBI BLAST and multiple alignment using biological information software DNAman,it was found that homology between the sample and Impatiens necrotic spot virus(INSV)reached higher than 90%. It was proved that the pathogens of the sample was Impatiens necrosis spot virus.

Key words: Phalaenopsis amabilis, impatiens ring spot disease, Impatiens necrosis spot virus, viral diseases

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