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. 2017 Sep 19;17:198. doi: 10.1186/s12866-017-1107-2

Fig. 2.

Fig. 2

The plasmid used for the construction of reporter cells. The structure of lsr operon was depicted in the picture. The lsr is a bidirectional promoter. Three elements: lsr promoter, gfp, rrnB T1 terminator were ligated to pTrcHisB so that the plasmid pLGFP can respone to the intrecellular AI-2-P concentration