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. 2012 Jan;78(2):437–444. doi: 10.1128/AEM.06782-11

Table 2.

Anode biofilm structure as a function of the electron donor

Electron donor Total biomass (μm3/μm2) Average thickness (μm) Roughness coefficient (0 to ∞) Surface-to-vol ratio (μm2/μm3) Substratum coverage (%)
Acetate 25.8 ± 3.2 26.7 ± 3.9 0.1 ± 0.1 0.8 ± 0.3 99.9 ± 0.1
Formate 13.7 ± 1.9 21.7 ± 4.1 0.3 ± 0.1 1.9 ± 0.4 75.0 ± 12.2
Lactate 13.0 ± 3.8 16.0 ± 3.6 0.2 ± 0.1 1.6 ± 0.7 91.0 ± 7.6
H2 2.9 ± 0.6 10.2 ± 3.3 1.0 ± 0.2 2.0 ± 0.4 37.2 ± 9.2
Formatea 25.5 ± 8.4 26.9 ± 9.4 0.2 ± 0.1 0.9 ± 0.3 99.3 ± 0.6
Lactatea 17.9 ± 3.6 18.9 ± 2.7 0.1 ± 0.1 1.2 ± 0.7 97.2 ± 3.9
a

Supplemented with 0.1 mM acetate.