生物技术通报 ›› 2014, Vol. 0 ›› Issue (7): 196-200.

• 研究报告 • 上一篇    下一篇

粉纹夜蛾中肠微生物中产AHLs群体感应信号分子菌株的分离鉴定

黄媛媛1, 2, 马宏1, 2, 贾振华1, 2, 黄亚丽1, 2, 宋水山1, 2, 张霞 1, 2   

  1. 1.河北省科学院生物研究所, 石家庄 050081;
    2.河北省主要农作物病害微生物控制工程技术研究中心, 石家庄 050081
  • 收稿日期:2013-12-19 出版日期:2014-07-15 发布日期:2014-07-16
  • 作者简介:黄媛媛, 女, 助理研究员, 硕士, 研究方向:微生物学;E-mail:yuanyuanh0127@sina.com;马宏同为本文第一作者
  • 基金资助:
    河北省自然科学基金项目(C2011302008)

Isolation and Identification of Accumulation of Quorum Signal Molecules Strains from the Trichoplusia ni Midgut

Huang Yuanyuan1, 2, Ma Hong1, 2, Jia Zhenhua1, 2, Huang Yali 1, 2, Song Shuishan1, 2, Zhang Xia 1, 2   

  1. Biology Institute, Hebei Academy of Sciences, Shijiazhuang 050081;
    2.Hebei Engineering and Technology Center of Microbiological Control on Main Crop Disease, Shijiazhuang 050081
  • Received:2013-12-19 Published:2014-07-15 Online:2014-07-16

摘要: 利用紫色杆菌(Chromobacterium violaceum CV026)报告系统从粉纹夜蛾(Trichoplusia ni)中肠中分离出两株可以产群体感应信号分子的菌株Tni-9和Se-9。通过16S rDNA序列分析结果可知, 分离菌株均与蒙氏肠球菌(Enterococcus mundtii ATCC 43186)有高度同源性, 在系统发育树内位于同一分支。选取菌株Se-9进行生理生化特性鉴定, 进一步证实该菌株为蒙氏肠球菌。将菌株Se-9进行薄层层析分析, 发现该菌株可以产生两种群体感应信号分子C6-HSL和3OC6-HSL。

关键词: 粉纹夜蛾, 中肠微生物, 群体感应, 薄层层析, 分离, 鉴定

Abstract: Two strains named Tni-9 and Se-9 were isolated from Trichoplusia ni midgut by CV026 report system. The 16S rDNA sequences of the isolates were studied, blast analysis and the phylogenetic tree showed their 16S rDNA were highly homologous to that of Enterococcus mundtii ATCC 43186. By the physiological and biochemical characteristics, the strain Se-9 was further confirmed belong to Enterococcus mundtii .TLC analysis present that Se-9 could produce C6-HSL and 3OC6-HSL quorum sensing signals respecctively.