ACTA AGRICULTURAE BOREALI-SINICA ›› 2013, Vol. 28 ›› Issue (4): 41-45. doi: 10.3969/j.issn.1000-7091.2013.04.008

Special Issue: Tobacco

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Construction of a Plant Inducible Expression Vector and Its Transient Expression in Tobacco

OUYANG Le-jun, HUANG Zhen-chi, SHA Yue-e, ZENG Fu-hua   

  1. School of Life Science and Technology, Zhanjiang Normal University, Zhanjiang 524048, China
  • Received:2013-06-20 Published:2013-08-28

Abstract: According to the sequences of pathogen- inducible plant promoters PPP3 at GenBank,PPP3 promot- ers was cloned from tobacco genome.It was used to replace cauliflower mosaic virus 35S promoter of pCAM- BIA1301.The recombinant plasmid was used to transform Agrobacterium tumefaciens GV3101.The inducibility of the PPP3 promoters in tobacco leaf was evaluated by Agrobacterium tumefaciens- transient genetic transformation as- sye.Real- time quantitative PCR was used to screen the PPP3 promoters with high inducible expression.The results showed that the gus transcript level under the control of PPP3 promoters increased respectively 27.94 fold and 17. 69 fold after inoculation with Ralstonia solanacearum and SA.The PPP3 promoter had the advantages such as low basal activity and high expression activity.

Key words: Inducible expression Promoter, Transient expression, Real- time quantitative PCR

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Cite this article

OUYANG Le-jun, HUANG Zhen-chi, SHA Yue-e, ZENG Fu-hua. Construction of a Plant Inducible Expression Vector and Its Transient Expression in Tobacco[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2013, 28(4): 41-45. doi: 10.3969/j.issn.1000-7091.2013.04.008.

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