| group | condition | fitness | t score | |
| stress | McCas_formate_complete deta nonoate 0.025 mM | -4.4 | -1.9 | compare |
| stress | McCas_formate_complete selenate 31.25 mM | -4.3 | -1.8 | compare |
| stress | McCas_formate_complete Polymyxin B sulfate 0.05 mM | -4.1 | -1.3 | compare |
| stress | McCas_formate_complete silver chloride 0.125 mM | -3.9 | -1.3 | compare |
| nutrient t2 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 & Vitamin FREE | -3.7 | -2.0 | compare |
| nutrient t2 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 Vitamin & Casamino Acid FREE | -3.6 | -1.7 | compare |
| nutrient t2 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 & Vitamin FREE | -3.6 | -1.6 | compare |
| rich t2 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2 | -3.6 | -3.3 | compare |
| nutrient t2 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 Vitamin & Casamino Acid FREE | -3.6 | -1.8 | compare |
| nutrient t2 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 & Vitamin FREE | -3.6 | -3.2 | compare |
| nitrogen source | Formate N-free with 2mM Adenosine | -3.5 | -1.4 | compare |
| iron | Iron limitation (0.2x), H2 media | -3.4 | -3.8 | compare |
| nitrogen source | Formate N-free with 2mM Adenosine | -3.4 | -1.6 | compare |
| stress | McCas_formate_complete Chlorpromazine 0.0166666666666667 mM | -3.4 | -1.0 | compare |
| attachment assay; attached sample | McCas-formate glass attached | -3.4 | -2.7 | compare |
| rich t2 | H2 McCas, 5g/L bicarb, 40 psi H2CO2 | -3.3 | -1.3 | compare |
| nutrient t1 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 20 psi N2CO2, SO4 Vitamin & Casamino Acid FREE | -3.3 | -3.8 | compare |
| nutrient t2 | H2 McCas, 2.5g/L bicarb, 200 mM MOPs, 40 psi H2CO2, SO4 Vitamin & Casamino Acid FREE | -3.2 | -1.1 | compare |
| iron | Iron excess (2.5x) , H2 media | -3.1 | -2.9 | compare |
| stress | McCas_formate_complete Spiramycin 0.1 mM | -3.1 | -1.5 | compare |