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. 2009 Aug 13;106(34):14587–14592. doi: 10.1073/pnas.0808005106

Fig. 1.

Fig. 1.

Effect of proline and valine on the GABA-dependent expression of AttM in A. tumefaciens. (A) Expression of attK-lacZ fusion, OC8HSL concentration (added at 200 nM at the beginning of the culture) and bacterial densities (CFU/mL) in cultures of A. tumefaciens C58 supplemented with GABA, Pro, and/or Val. (B) Uptake of radiolabeled GABA (% of total available) in A. tumefaciens C58 cells in the absence (closed symbol) or presence (open symbol) of Pro (left graph) or Val (right graph) antagonists (1 mM).