1977 Volume 30 Issue 6 Pages 443-449
A series of basic 16-membered macrolide antibiotics, M-4365 A1, A2, A3, G1, G2 and G3, were isolated from the culture broth of strain MCRL 0940 which is assigned to be a new species of Micromonospora and for which the name Micromonospora capillata sp. nov. is proposed. Among these antibiotics, M-4365 A2 and G2 showed strong inhibitory activity against Grampositive and Gram-negative bacteria.