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. 2015 Dec 30;15:305. doi: 10.1186/s12870-015-0673-4

Fig. 6.

Fig. 6

PHO1 expression after 3 days of co-cultivation or mock-treatment of the two symbionts under the two different Pi concentrations. Data are based on 3 independent experiments with 15 plants each. Bars represent SEs. Asterisks indicate significant differences, as determined by Student’s paired t-test for two tailed distribution (** P ≤ 0.01; *** P ≤ 0.001)