ACTA AGRICULTURAE BOREALI-SINICA ›› 2009, Vol. 24 ›› Issue (5): 188-191. doi: 10.7668/hbnxb.2009.05.039

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Identification of Broad2spectrum Antagonistic Strain B962II and GFP Tagging

HAO Bian-qing, MA Li-ping, QIAO Xiong-wu   

  1. Shanxi Key Laboratory of Pesticide Science, Shanxi Academy of Agriculture Sciences, Taiyuan 030031, China
  • Received:2009-06-08 Published:2009-10-28

Abstract: 16S rDNA of broad-spectrum antagonistic strain B96-II was amplified by PCR and sequenced.Using BLAST software,comparison results showed B96-II was possibly identified as Bacillus subtilis combining its morphological,physiological and biochemical characteristics.In order to construct Escherichia coli-Bacillus shuttle vector containing gfp and B96-II self promoter,digested fragments of total DNA of B96-II that was digested by Sau3A I were ligated to pNW33N-gfp that was digested by BamH I,and the product was transformed into E.coli DH5αcompetent cells.Protoplast transformation method was used to gain tagged strain by gfp and GFP was well expressed in tagged B96-II under fluorescence microscope.B96-II-gfp remained strong antifungal activities against 12 kinds of plant pathogentic fungi as B96-II.The results provided fundamental possibility for the further study on the ecological behavior of broad-spectrum antagonistic bacterium B96-II.

Key words: Broad-spectrum antagonistic strain, 16S rDNA, GFP, Protoplast transformation

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Cite this article

HAO Bian-qing, MA Li-ping, QIAO Xiong-wu. Identification of Broad2spectrum Antagonistic Strain B962II and GFP Tagging[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2009, 24(5): 188-191. doi: 10.7668/hbnxb.2009.05.039.

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