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. 2014 Nov 4;9(11):e111067. doi: 10.1371/journal.pone.0111067

Figure 3. Changes in the total protein content and free amino acid profile in N stressed cells are consistent with a decrease in N assimilation.

Figure 3

A) Total protein content. B) Free amino acids, classified into three groups based on their relative abundance. Results are mean ± SE (n = 3). Statistically different results (p<0.05) are marked using either a different letter (Analysis of variance) or an asterisk (Student's t-test). FW; Fresh weight.