Table 5.
Chitinase gene copies numbers in natural habitats.
| Gene copies | System | Method | References |
|---|---|---|---|
| Up to 3.4 × 102 ml−1 | Freshwater | 1qPCR on 2GH18 genes | Köllner et al., 2012 |
| 3.4 × 104 – 4.2 × 107 g−1 (wet) | Freshwater sediment | qPCR on GH18 genes | Xiao et al., 2005 |
| Up to ~8.5 × 104 g−1 (dry) | Freshwater sediment | qPCR on GH18 genes | Köllner et al., 2012 |
| 2.5 × 103 g−1 (wet) | Soil | qPCR on GH18 genes | Xiao et al., 2005 |
| 2.3 × 108 – 9.3 × 109 g−1 (dry) | Soil | qPCR on GH18 genes | Gschwendtner et al., 2010 |
| 7 × 105 – 9.3 × 106 g−1 (wet) | Soil | qPCR on GH18 genes | Brankatschk et al., 2011 |
| 3 × 107 g−1 (wet) | Soil | qPCR on GH18 genes | Kielak et al., 2013 |
| *4.6 × 106 – 1.1 × 107 g−1 (wet) | Soil | qPCR on GH18 genes | Cretoiu et al., 2012 |
1
qPCR: quantitative polymerase chain reaction.
2
GH18: family 18 glycoside hydrolase.
*
Values derived from digitalized figures using the Engauge Digitizer Program (http://digitizer.sourceforge.net/index.php?c=5).