Podojil M, Blumauerová M, Prikrylová V, Vanĕk Z, Gauze G F, Maksimova T S
Folia Microbiol (Praha). 1980;25(6):464-6. doi: 10.1007/BF02897211.
The strain Streptomyces griseoruber 4620 produces, besides the anthracycline antibiotics beromycins, some other anthracyclines of the rhodomycin type. Twelve isolates exhibiting a higher antibiotic activity (up to 2.5X), as compared to the parent strain, were obtained after a spontaneous selection. The following species were isolated from the hydrolysate of mycelial extract: beta-rhodomycinone, beta-isorhodomycinone, alpha 2-rhodomycinone, epsilon-rhodomycinone and 10-deoxy-beta-rhodomycinone, which has not yet been described.
灰色链霉菌4620菌株除了产生蒽环类抗生素贝罗霉素外，还产生一些其他类型的红霉环素类蒽环类抗生素。经过自发筛选，获得了12株与亲本菌株相比具有更高抗生素活性（高达2.5倍）的分离株。从菌丝体提取物的水解产物中分离出以下几种物质：β-红霉环酮、β-异红霉环酮、α2-红霉环酮、ε-红霉环酮和尚未被描述的10-脱氧-β-红霉环酮。
