Table 1.
Mean total numbers of colony-forming units (cfu) per gram fresh weight of the compartments (COMPT) bulk soil (BS), rhizosphere soil (RS) and B. napus root tissue (R) isolated on the control field (CO-F) and the contaminated field (TE-F)
| Field | COMPT | cfu g−1 fresh weight |
|---|---|---|
| CO-F | BS (ac) | 99.7 × 105 ± 51.8 × 105 (6) |
| RS (b) | 23.7 × 108 ± 21.2 × 108 (17) | |
| R (ac) | 10.4 × 105 ± 23.4 × 104 (15) | |
| TE-F | BS (a) | 20.5 × 106 ± 22.4 × 105 (20) |
| RS (b) | 78.1 × 107 ± 30.8 × 107 (25) | |
| R (c) | 22.4 × 105 ± 19.8 × 105 (18) |
Values are mean ± standard error of three biological independent replicates. Numbers of different bacterial genera are marked between parentheses. Letters between parentheses in the COMPT column refer to statistical significances in cfu g−1 fresh weight (P-value < 0.10).