TABLE 1.
Growth, production, and excretion parameters for M. marburgensis, M. okinawensis, and M. villosus under standard growth conditionsa
| Parameter | Value for organism |
||
|---|---|---|---|
| M. marburgensis | M. okinawensis | M. villosus | |
| tinc (h) | 229.3 | 78.6 | 36.9 |
| Mean ODend (at 578 nm) ± SD | 1.041 ± 0.057 | 0.660 ± 0.040 | 0.700 ± 0.012 |
| MERmean (mmol L−1 h−1) ± SD | 1.219 ± 0.076 | 3.030 ± 0.113 | 3.875 ± 0.237 |
| WERmean (mmol L−1 h−1) ± SD | 2.485 ± 0.142 | 6.852 ± 0.180 | 8.056 ± 0.419 |
| WER/MER ratio | 2.038 | 2.262 | 2.115 |
| Mean total AAER (μmol L−1 h−1) ± SD | 0.125 ± 0.019 | 9.617 ± 0.916 | 8.831 ± 0.734 |
| Mean total lipid production rate (μmol g−1 h−1) ± SD | 0.018 ± 0.001 | 0.027 ± 0.007 | 0.128 ± 0.018 |
a
tinc, total incubation time; ODend, maximal optical density (at 578 nm) measured over the total incubation time (available for only half of the samples); MERmean, mean methane evolution rate; WERmean, mean water evolution rate; AAER, amino acid excretion rate. Except for tinc and the WER/MER ratio, the data presented are mean values and standard deviations (n = 4).