Microbial Formation of 4-Thiouracil

Microbial Formation of 4-Thiouracil Microbial production of 4-thiouridine. Isolation and structure of antibiotic U-68,204, a new thiolactone. Isolation, purification and partial characterization of antibacterial activities produced by a newly isolated Streptomyces sp. US24 strain A new secondary metabolite from the fermented mycelia of <i>Streptomyces antibiotic</i> H41-55 4-chlorothreonine, a herbicidal antimetabolite produced by streptomyces sp. OH-5093. Albothricin, a new streptothricin antibiotic. Leinamycin, a new antitumor antibiotic from Streptomyces; Producing organism, fermentation and isolation. Leinamycin, a new antitumor antibiotic from Streptomyces; Producing organism, fermentation and isolation. U-43,120; a new antitumor antibiotic. I. Production, biological activity, microbiological assay and taxonomy of the producing microorganism.