Figure 1.

Differences in the Metabolite Content, Enzyme Activities, and Biomass-Related Components in the Leaves of 19 Maize Lines Originating from Europe and America at Two Key Stages of Plant Development.

The top of the figure shows the coefficients of variations (expressed as percentage) of the biomass-related components in red (biomass components are shown as: C, total carbon; N, total nitrogen), including yield. Enzyme activities are in blue (GS, glutamine synthetase; MDH, NADP-dependent malate dehydrogenase; GOGAT: ferredoxin-dependent glutamate synthase; AspAT, aspartate aminotransferase). Metabolites and classes of metabolites are in black (2-OG, 2-oxoglutarate; Cit, citrate; Pyr, pyruvate; AA, total amino acids; Unknown, unidentified metabolites). An overview representation of the average of the coefficients of variations (from 0 to 80%) for the main classes of metabolites, enzyme activities, and biomass components is shown at the bottom of the figure. Anions correspond to nitrate and phosphate and biomass components to C, N, and water contents.