TABLE 2.
Cross-feeding assay using achromobactin biosynthesis and receptor mutants of D. dadantii as indicator strains
| Culture supernatant | Diam of indicator strain growth zone (mm)a |
|
|---|---|---|
| 3937 cbsE-1 acs-37b | 3937 acr-1 fct-34c | |
| No additive | 0 | 0 |
| 3937 cbsE-1 tonB60d | 11 | 0 |
| P. syringae pv. syringae 22d/93 | 11 | 0 |
| P. syringae pv. syringae B728a | 8 | 0 |
| Fe2+ controle | 5 | 5 |
a
The experiment was repeated three times. The data are data from a representative experiment.
b
Achromobactin and chrysobactin biosynthesis mutant of D. dadantii 3937.
c
Achromobactin and chrysobactin receptor mutant of D. dadantii 3937.
d
Achromobactin-producing and chrysobactin-negative mutant of D. dadantii 3937.
e
Fe2+ (20 μM) was used as a control.