TABLE 4.
Wild type or mutant | Clavulanic acid produceda (% relative to wild type)
|
|
---|---|---|
SA medium | Soy medium | |
Wild type | 100 | 100 |
ceaS2-Fs | 0 | 5-13 |
ΔceaS1::apr | 17-63 | 2-63 |
ceaS2-Fs/ΔceaS1::apr | 0 | 0 |
bls1::tsr | 103-162 | 107-173 |
bls1::tsr/bls2::apr | 0 | 0 |
oat1::neo | 30-154 | 57-145 |
oat1::neo/oat2::apr | 12-62 | 31-67 |
The amount of clavulanic acid produced after 96 h of growth was measured by HPLC analysis.