Antibacterial and antifungal activity of streptomycetes isolated from Portonova coastal environment. Papers presented in the symposium held at Cochin, India, 16-17 September 1993

Abstract

The antibacterial and antifungal activities of 518 streptomycetes strains were tested against Bacillus circulans, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Saccharomyces cerevisiae and Fusarium oxysporum. 27.03% of the strains was found to elaborate one or more types of antibiotics. 59.27% was active on B. circulans, 47.01% on S. aureus, 30% on E. coli, 53.59% on S. cerevisiae and 39.3% on F. oxysporum. Majority of the isolates (46.43%) showed combined antibacterial and antifungal activities while 28.5% were only antifungal and 25%, only antibacterial. The results clearly show that the marine environment harbours many broad spectrum antibiotic-producing streptomycetes