Table 1.
Quorum quenching (QQ, based on reporter strain QSIS1 and C. violaceum CV026) and antimicrobial activity (AM, against C. violaceum CV026) of sponge extracts from 14 different sponge species.
| Sponges | CV026 | QSIS1 | Origin of sponge | |
|---|---|---|---|---|
| AM | ||||
| Amphimedon chloros | ND | + | + | RS |
| Axinella verrucosa | − | − | − | MS |
| Chondrosia reniformis | − | − | − | MS |
| Crella cyathophora | − | − | − | RS |
| Diacarnus erythraenus | − | − | + | RS |
| Ircinia variabilis | + | + | + | MS |
| Negombata magnifica | + | + | + | RS |
| Petrosia ficiformis | − | − | − | MS |
| Phorbas sp. | − | − | − | MS |
| Pione vastifica | − | − | − | RS |
| Sarcotragus sp. | + | + | + | MS |
| Siphonochalina siphonella | − | − | − | RS |
| Suberites clavatus | + | + | + | RS |
| Theonella swinhoei | − | − | + | RS |
A species was considered positive if at least 2 out of 3 replicates were positive for the tested activity. Abbreviation used: RS, Red Sea; MS, Mediterranean Sea; ND, Not Determined.