Metabolic cross-feeding interactions modulate the dynamic community structure in microbial fuel cell under variable organic loading wastewaters

doi:10.1371/journal.pcbi.1012533

Metabolic cross-feeding interactions modulate the dynamic community structure in microbial fuel cell under variable organic loading wastewaters

Fig 2

Simulation of metabolic cross-feeding in L-OLR and H-OLR conditions.

A, Comparison of microbial relative abundances from experiments and microbe-microbe interaction model (mmGEM) simulations. B, The main metabolite exchange fluxes () between the key microbial guilds, including sulfate-reducing bacteria (SRB), methanogens (MET) and sulfide-oxidizing bacteria (SOB), and community compartment (COM) under low (L-OLR) and high organic loading conditions (H-OLR). is an exchange reaction flux of the metabolite i in COM and the microbial group k, including SRB, MET, and SOB. Positive (+) and negative (-) exchange fluxes indicate metabolite secretion (+) and consumption (-) for microbial compartments, while representing metabolite influx (+) and efflux (-) for COM. Exchange fluxes on the x-axis are represented on an exponential scale.

doi: https://doi.org/10.1371/journal.pcbi.1012533.g002