Anti-bacillus substance in the marine sponge, Hyatella species, produced by an associated Vibrio species bacterium.

The bacterial isolate, M22-1, belonging to the genus Vibrio was obtained from an homogenate of the sponge, Hyatella sp. The bacterium was cultured in marine agar and was found to produce an anti-Bacillus compound. The substance was chemically identified as a peptide antibiotic, an andrimid. The same substance was found in the sponge extract, suggesting that the active component was synthesized by the associated microorganism.