Table 4.
Mycelia growth of Sclerotinia sclerotiorum USB-F593 from fungal plug and sclerotia after 5 days exposure to rhizobacteria volatiles and from fungal plug and sclerotia re-inoculated on fresh PDA.
| Treatmentsa | Mycelium diameters (cm)b | |||
|---|---|---|---|---|
| VOCs assay on mycelium | Viability assay of mycelium | VOCs assay on sclerotia | Viability assay of sclerotia | |
| Control | 5.6 ± 0.05 | 5.8 ± 0.08 | 3.2 ± 0.08 | 3.5 ± 0.06 |
| USB2101 | 0* | 5.7 ± 0.08 | 0* | 3.4 ± 0.04 |
| USB2102 | 0* | 5.8 ± 0.07 | 0* | 3.4 ± 0.06 |
| USB2103 | 4.4 ± 0.03* | 5.9 ± 0.04 | 2.6 ± 0.06* | 3.7 ± 0.06 |
| USB2104 | 0* | 5.9 ± 0.05 | 0* | 3.4 ± 0.05 |
| USB2105 | 0.6 ± 0.05* | 5.7 ± 0.03 | 0.3 ± 0.03* | 3.4 ± 0.06 |
| USB2106 | 0.5 ± 0.03* | 5.7 ± 0.05 | 0.2 ± 0.03* | 3.5 ± 0.05 |
a
Control = fungus inoculated without bacteria; bacterial isolates attributable, on the basis of the partial 16SrDNA sequencing, to Pseudomonas brassicacearum (USB2101, USBB2102, and USB2104); Bacillus megaterium (USB2103) and Pseudomonas putida (USB2105 and USB2106).
a
Results are shown in centimeters ± standard error of mycelium growth.
*
P ≤ 0.001.