Antibiotic activity of marine microorganisms: the antibacterial spectrum

Abstract

1. The antibacterial spectrum of sixty marine bacteria was determined using twenty test organisms. 2. Gram-positive organisms were in general found to be more susceptible to antibiotics produced by marine bacteria than the gram-negative forms. 3. The production of antibacterial substances by marine bacteria may be one of the factors responsible for the rapid reduction in number of adventitious organisms entering the marine environment. © 1966 Biologischen Anstalt Helgoland.