Frigocyclinone, a Novel Angucyclinone Antibiotic Produced by a Streptomyces griseus Strain from Antarctica

Frigocyclinone, a Novel Angucyclinone Antibiotic Produced by a Streptomyces griseus Strain from Antarctica Simocyclinones, Novel Cytostatic Angucyclinone Antibiotics Produced by Streptomyces antibioticus Tue 6040. I. Taxonomy, Fermentation, Isolation and Biological Activities. Cytotoxic antibiotic angucyclines and actinomycins from the Streptomyces sp. XZHG99T Simocyclinones, Novel Cytostatic Angucyclinone Antibiotics Produced by Streptomyces antibioticus Tue 6040. II. Structure Elucidation and Biosynthesis. Monacyclinones, New Angucyclinone Metabolites Isolated from Streptomyces sp. M7_15 Associated with the Puerto Rican Sponge Scopalina ruetzleri Monacyclinones, New Angucyclinone Metabolites Isolated from Streptomyces sp. M7_15 Associated with the Puerto Rican Sponge Scopalina ruetzleri Grecocyclines: New Angucyclines from <i>Streptomyces</i> sp. Acta 1362 Metabolic products of microorganisms. 234 Urdamycins, new angucycline antibiotics from Streptomyces fradiae. I Isolation, characterization and biological properties. Langkocyclines: novel angucycline antibiotics from Streptomyces sp. Acta 3034 Cytotoxic Angucycline Class Glycosides from the Deep Sea Actinomycete <i>Streptomyces lusitanus</i> SCSIO LR32