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. 2021 Jun 9;1:23. doi: 10.1038/s43705-021-00025-z

Fig. 1. Selective enrichment of Geobacter lovleyi LYY based on the cell growth rate/yield tradeoff of Geobacter and Dehalococcoides.

Fig. 1

A The rate/yield tradeoff-based growth curves of fast-growing population with low cell density (red line) and slow-growing population with high cell density (blue line). B Changes in microbial community composition when shifting the selective enrichment from growth-yield selection to growth-rate selection by shortening culture incubation time. T2 and T25 represent 2nd and 25th culture transfers, respectively. See Fig. S2 for detailed community composition data. Dechlorination of PCE (C) and corresponding cell growth (D) of pure cultures Geobacter lovleyi LYY (Geo, red line) and Dehalococcoides mccartyi CG1 (Dhc, blue line) to show their growth rate/yield tradeoff. Error bars represent SDs of triplicate cultures. Optimum transfer time of strains LYY and CG1 are shaded in red and blue colors, respectively.