TABLE 3.
Effect of proline and LP on the growth of a proline auxotroph of Frag1, MJF383, at low and high osmolarities
| Strain | Growth medium
|
Specific growth rate (n)a | ||
|---|---|---|---|---|
| NaCl (0.5 M) | Proline (1 mM) | LP (2 mM) | ||
| MJF383 | − | − | − | —b |
| − | + | − | 0.87 ± 0.10 (2) | |
| − | − | + | 0.81 ± 0.05 (2) | |
| + | − | − | —c | |
| + | + | − | 0.34 ± 0.01 (3) | |
| + | − | + | 0.29 ± 0.01 (3) | |
| Frag1 | − | − | − | 0.87 ± 0.07 (4) |
| + | − | − | 0.31 ± 0.02 (6) | |
| + | + | − | 0.42 ± 0.05 (4) | |
| + | − | + | 0.29 ± 0.00 (2) | |
a
Specific growth rates are shown per hour ± standard deviations.
b
Doubling time > 10 h.
c
Doubling time > 16 h.