A new antibiotic XK-90 is produced by Streptomyces sp. MK-90 and is active against Gram-positive and Gram-negative bacteria. The taxonomy of the organism, fermentation, isolation and physiochemical and biological properties are described.
山东省济南市章丘区文博路2号
齐鲁师范学院 genelibs生信实验室
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