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Impact of zng2 mutation on growth with or without added Zn. (A) Comparison of single mutants with Col-0; 11 DAS (B) Comparison of Col-0 with the double mutant; 11 DAS. (C) Average primary root length in the absence of added Zn; 11 DAS. Error bars represent the standard deviation of 9 seedlings (three plates with 3 plates on each plate, grown at the same time in the same incubator). **** indicates a P value < 0.0001, ** indicates a P value < 0.01, as calculated with a Student’s T-test.
