Table 1.
Cell counting, lipase activity, and metagenomic library of non-enriched soil (NS) and oil-enriched soil (OS)
| Properties | NS | OS |
|---|---|---|
| Total cells (×109 cell g−1 [dry wt])a | 5.3±1.2 | 2.4±0.1 |
| Culturable lipolytic bacteria (×106 CFU g−1 [dry wt])a | 1.7±0.2 | 13.8+2.5 |
| The ratio of culturable lipolytic bacteria to the total number of cells (%) | 0.031 | 0.57 |
| Soil lipase activity (U g−1 [dry wt])a | 55.3+7.3 | 252.8+37.7 |
| Metagenomic libraries | ||
| Total number of clones | 80,000 | 130,000 |
| Average insert size (kb) | 28.6 | 28.1 |
| Estimated total amount of DNA (Gb) | 2.29 | 3.65 |
| Positive lipolytic clones | 7 | 49 |
| The ratio of positive lipolytic clones to the total number of clones (%) | 0.00875 | 0.0377 |
a
Averages and standard deviations were calculated based on 10, 5, and 2 replicates for the total number of cells, culturable lipolytic bacteria, and soil lipase activity, respectively.