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. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: Mol Microbiol. 2011 Jan 25;79(5):1182–1193. doi: 10.1111/j.1365-2958.2011.07540.x

Fig. 8.

Fig. 8

Effect of deleting A. vinelandii clpX2 on diazotrophic growth and in vivo nitrogen fixation. A, Growth curves of A. vinelandii strains DJ (open symbols) and UW322 (closed symbols) using ammonium (squares) or N2 (circles) as nitrogen source. B, Time-course development of in vivo nitrogen fixation activity in A. vinelandii strains DJ (open symbols) and UW322 (closed symbols) estimated by the acetylene reduction assay. Data represent the mean and standard deviation of three independent experiments.