Martinomycin is a polyether antibiotic originally isolated from the actinomycete S. salvialis.1,2 It is active against a variety of bacteria, including 11 strains of S. aureus, three strains of S. pneumoniae, and E. faecalis (MICs = 0.12-0.5, 0.06, and 0.5 μg/ml, respectively).2 It induces mortality in 80% of third instar S. eridania larvae when applied at a concentration of 10 ppm to bean leaves.

References
1. Carter, G.T., Schlingmann, G., Kenion, G.B., et al. Martinomycin, a new polyether antibiotic produced by Streptomyces salvialis. II. Isolation and structure determination. J. Antibiot. (Tokyo) 47(12), 1549-1553 (1994).
2. Bernan, V.S., Montenegro, D.A., Goodman, J.J., et al. Martinomycin, a new polyether antibiotic produced by Streptomyces salvialis. I. Taxonomy, fermentation and biological activity. J. Antibiot. (Tokyo) 47(12), 1434-1441 (1994).