Arisostatins A and B, New Members of Tetrocarcin Class of Antibiotics from Micromonospora sp. TP-A0316. I. Taxonomy, Fermentation, Isolation and Biological Properties.

Arisostatins A and B, new members of tetrocarcin class of antibiotics were isolated from the culture broth of an actinomycete strain. The producing strain, TP-A0316, was identified as Micromonospora sp. Arisostatins were obtained from the culture fluid by solvent extraction and chromatographic purification. They showed antibiotic activity against Gram-positive bacteria and antitumor activity.