Fig. 2.

Results of Mittler [34] single amino acid elimination experiment demonstrating Buchnera provisioning of essential amino acids. Nonessential amino acids (listed alphabetically) are represented by blue bars, while essential amino acids (also alphabetically listed) are shown in pink. Dark colors show data from symbiotic Myzus persicae while light colors show data from aposymbiotic M. persicae. While the data are largely qualitative, they are representative of the types of early data that established the nutritional provisioning of essential amino acids by Buchnera to their aphid hosts. Data are taken from 3day/apterous columns in Table 2 of [34]