TABLE 1.
Metabolic products and growth yields of Methanococcoides sp. strain NM1 grown on methylamine, dimethylamine, trimethylamine, and glycine betainea
| Substrate | Substrate consumed (mM) | Product formed (mM) |
Protein formed (mg liter−1) | Growth yield (g [dry wt] mol methyl group−1) | ||
|---|---|---|---|---|---|---|
| Ammonium | DMG | Methane | ||||
| Methylamine | 5.4 | 5.4 | 3.1 | 5.81 | 2.15 | |
| Dimethylamine | 5.1 | 5.1 | 6.7 | 8.95 | 1.75 | |
| Trimethylamine | 4.9 | 4.9 | 10.1 | 10.1 | 1.37 | |
| Betaine | 5.4 | 5.2 | 3.6 | 10.7 | 3.96 | |
a
All data are averages of triplicate cultures. The protein formed was converted into dry mass assuming that protein represents 50% of the dry weight (34).