| abstract |
New antiobiotic U-53,946 produced by the controlled fermentation of the new microorganism Paecilomyces abruptus sp. nov., NRRL 11110. This antibiotic is active against Gram-positive bacteria, for example, Sarcina lutea, Staphylococcus aureus, Bacillus subtilis, Mycobacterium avium, and Streptococcus pyrogenes, and the yeast Saccharomyces pastorianus. Accordingly, they can be used in various environments to eradicate or control these microorganisms. |