Fig. 7From: Piezo-tolerant natural gas-producing microbes under accumulating pCO2 Results of the propionate degradation experiments (experiment III) under different pCO2 conditions. a Propionate degradation profiles under different pCO2 conditions. b Both acetate and propionate profiles of 0.50 MPa trial are shown for representation. Dashed lines represent curve fittings using modified Gompertz modelBack to article page