Figure 5.

Incorporation of [U-¹³C₆]Glc into developing maize kernels. Labeling patterns of metabolic intermediates indole, anthranilic acid, acetyl-CoA, PEP, and Rib can be reconstructed from observed labeling patterns of the isolated amino acids Trp, Leu, Tyr and His on the basis of established mechanisms. Contiguous ¹³C labeling is shown by bold lines. The number next to this line represents the normalized abundance of the isotopomer (Table II).