Fig. 3From: A reverse metabolic approach to weaning: in silico identification of immune-beneficial infant gut bacteria, mining their metabolism for prebiotic feeds and sourcing these feeds in the natural product spaceFor two interacting species, the metabolic network is shown; nodes are metabolites and edges connect substrates to products. Substrates are colored in red, whereas potential products are in green. The support gives an example of the capacity of a potential eukaryotic host (orange) to meet the metabolic requirements of a microbe (blue). Complementarity represents exogenously acquired compounds in one species (blue) that are found in the metabolic network, although not as its feed, of the other species (yellow). Competition shows metabolic competition between two microbes (blue and yellow) for the same essential metabolitesBack to article page