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. 2013 May 7;8(5):e61932. doi: 10.1371/journal.pone.0061932

Figure 6. Effects of lead treatment on primary root length in wild-type and knockout mutant seedlings of A. thaliana.

Figure 6

Seedlings were grown for 13 days on vertically orientated agar plates with or without 40 µM of Pb(NO3)2. (A) Atmt2a T-DNA mutant analysis. (B) Athma4 T-DNA mutant analysis. All results are the average value (± SE) of 16 seedlings. The letters represent statistically homogenous subgroups using LSD post hoc test at a α = 0.01 significance level.