TABLE 4.
Indicator plate (Hfx. mediterranei strain)a | Inhibition activity at indicated dilution of halocin-containing supernatantb |
|||||
---|---|---|---|---|---|---|
1 | 1/2 | 1/4 | 1/8 | 1/16 | 1/32 | |
EPS | ● | ● | ● | ○ | ○ | ○ |
EPSH | ● | ● | ● | ○ | ○ | ○ |
EPSHR | ● | ● | ● | ● | ● | ○ |
EPSHR-R4 | ● | ● | ○ | ○ | ○ | ○ |
EPSR | ● | ● | ● | ● | ● | ○ |
EPSR-R4 | ● | ● | ● | ○ | ○ | ○ |
Strain EPS, Hfx. mediterranei strain DF50 ΔEPS; strain EPSH, Hfx. mediterranei strain DF50 ΔEPS ΔhalH4; strain EPSHR, Hfx. mediterranei strain DF50 ΔEPS ΔhalH4 ΔhlyR4; strain EPSHR-R4, Hfx. mediterranei strain DF50 ΔEPS ΔhalH4 ΔhlyR4::hlyR4; strain EPSR, Hfx. mediterranei strain DF50 ΔEPS ΔhlyR4; strain EPSR-R4, Hfx. mediterranei strain DF50 ΔEPS ΔhlyR4::hlyR4.
The dilution shown as 1 represents the 10-fold-concentrated halocin-containing supernatants produced by Haloferax sp. Q22 at late stationary phase, used for dilution. 1/2, 1/4, 1/8, 1/16, and 1/32 represent 2-, 4-, 8-, 16-, and 32-fold dilutions, respectively. Filled circle, significant inhibition activity; empty circle, no inhibition activity. These results were obtained through three biological replicates.