| group | condition | fitness | t score | |
| nitrogen source | N2 fixation, H2 media | -1.2 | -1.9 | compare |
| stress | McCas_formate_complete Irgasan 0.0125 mM | -1.0 | -1.5 | compare |
| stress | McCas_formate_complete Ticarcillin 12.5 mM | -0.8 | -1.3 | compare |
| nutrient t2 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 Vitamin & Casamino Acid FREE | -0.7 | -1.3 | compare |
| stress | McCas_formate_complete hypophosphite 62.5 mM | -0.7 | -1.9 | compare |
| nutrient t2 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 & Vitamin FREE | -0.7 | -2.7 | compare |
| rich t2 | Formate McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 FREE | -0.6 | -1.8 | compare |
| nutrient t2 | Formate McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 Vitamin & Casamino Acid FREE | -0.6 | -1.5 | compare |
| nutrient t2 | Formate McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 & Vitamin FREE | -0.6 | -1.2 | compare |
| nutrient t2 | Formate McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 & Casamino Acid FREE | -0.6 | -1.7 | compare |
| rich t2 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2 | -0.6 | -2.1 | compare |
| biofilm | H2 pooled triplicate biofilm cells | -0.6 | -1.9 | compare |
| stress | McCas_formate_complete Sulfaquinoxaline 0.1 mM | -0.6 | -1.0 | compare |
| nitrogen source | Formate N-free with 2mM Adenosine | -0.6 | -0.9 | compare |
| rich t1 | Formate McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 FREE | -0.6 | -1.9 | compare |
| stress | Formate 100 mM hypophosphite | -0.6 | -1.2 | compare |
| nutrient t1 | Formate McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 & Vitamin FREE | -0.6 | -1.3 | compare |
| nutrient t1 | Formate McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 Vitamin & Casamino Acid FREE | -0.5 | -1.6 | compare |
| nitrogen source | H2 N-free with 2g/L casaminos 10mM Ammonium chloride | -0.5 | -1.4 | compare |
| no stress control | McCas_formate_complete no stress control | -0.5 | -1.1 | compare |