X-14766A,a Halogen Containing Polyether Antibiotic Produced by Streptomyces Malachitofuscus Subsp. Downeyi ATCC 31547--Discovery,Fermentation,Biological Properties and Taxonomy of the Producing Culture

X-14766A is a novel, chlorine containing polyether antibiotic produced by Streptomyces inalachitofuscus subsp. downeyi. The antibiotic is active in vitro gainst Gram-positive bacteria and is capable of complexing and transporting monovalent as well as divalent metal cations.