摘要:
New glycopeptide antibiotic A82846, comprising A82846A, A82846B and A82846C, is produced by Nocardia orientalis strains NRRL 18098, NRRL 18099 and NRRL 18100. The A82846 antibiotics have activity against Gram-positive bacteria comparable to that of vancomycin.
摘要:
New glycopeptide antibiotic A82846, comprising A82846A, A82846B and A82846C, is produced by Nocardia orientalis strains NRRL 18098, NRRL 18099 and NRRL 18100. The A82846 antibiotics have activity against Gram-positive bacteria comparable to that of vancomycin.
摘要:
New polyether antibiotic A80438, its acyl and alkyl ester, alkyl ether and urethane derivatives, and salts thereof, are useful antibacterial and anticoccidial agents and increase feed-utilization efficiency in animals. Method of making A80438 by culture of Streptomyces bobili NRRL 15971 and synergistic compositions comprising (1) and A80438 compound and (2) nicarbazin, 4,4'-dinitrocarbanilide, certain napthalenamine and benzenamine compounds or metichlorpindol are also provided.
摘要:
The present invention disclosed novel recombinant DNA cloning vectors including pMND1000 and vectors derived therefrom for use in Streptomyces and related organisms. These novel cloning vectors contain genetic markers that provide antibiotic resistance or colorimetric selectivity to the host cells. The invention further comprises transformants of the aforementioned vectors.
摘要:
New A83543 components, including fermentation products A83543K, A83543O, A83543P, A83543U, A83543V, A83543W and A83543Y and N-demethyl derivatives, and salts thereof, are useful for the control of insects and mites. The pseudoaglycones of the new A83543 components are useful for the preparation of A83543 components. Methods are provided for making the new A83543 components by culturing of Saccharopolyspora spinosa NRRL 18395, NRRL 18537, NRRL 18538, or NRRL 18539, or NRRL 18743 or NRRL 18719 or NRRL 18823 in suitable culture medium. Insecticidal and ectoparasiticidal compositions containing new A83543 components are also provided.
摘要:
Deoxynarasin antibiotic complex, comprising 20-deoxynarasin and 20-deoxy-epi-17-narasin, is produced by submerged aerobic fermentation of Streptomyces aureofaciens NRRL 11181. 20-Deoxynarasin and 20-deoxy-epi-17-narasin are separated and isolated by chromatography. The deoxynarasin complex, 20-deoxynarasin and 20-deoxy-epi-17-narasin are antibacterial and anticoccidial agents and also increase feed-utilization efficiency in ruminants.
摘要翻译:通过潜在的好氧发酵生产{PG,1脱氧ar as素抗生素复合物,其包含20-脱氧n as素和20-脱氧表i -17- n as in is 17 17 17 obic of of 1. 1. 1. 1. 1. 1. {{1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 17 17 17 17 - 通过色谱分离和分离。 脱氧镰刀菌素复合物,20-脱氧ar as素和20-脱氧表i -17- n in素是抗菌和抗球虫剂,也提高反刍动物的饲料利用效率。
摘要:
Newly-discovered antibiotic A-28086 factor D, produced by submerged aerobic fermentation of Streptomyces aureofaciens NRRL 8092, is an antibacterial and anticoccidial agent and also increases feed-utilization efficiency in ruminant animals.
摘要:
New A83543 components, including fermentation products A83543K, A835430, A83543P, A83543U, A83543V, A83543W and A83543Y and N-demethyl derivatives, and salts thereof, are useful for the control of insects and mites. The pseudoaglycones of the new A83543 components are useful for the preparation of A83543 components. Methods are provided for making the new A83543 components by culturing of Saccharopolyspora spinosa NRRL 18395, NRRL 18537, NRRL 18538, or NRRL 18539, or NRRL 18743 or NRRL 18719 or NRRL 18823 in suitable culture medium. Insecticidal and ectoparasiticidal compositions containing new A83543 components are also provided.
摘要:
New A83543 components, including fermentation products A83543K, A835430, A83543P, A83543U, A83543V, A83543W and A83543Y and N-demethyl derivatives, and salts thereof, are useful for the control of insects and mites. The pseudoaglycones of the new A83543 components are useful for the preparation of A83543 components. Methods are provided for making the new A83543 components by culturing of Saccharopolyspora spinosa NRRL 18395, NRRL 18537, NRRL 18538, or NRRL 18539, or NRRL 18743 or NRRL 18719 or NRRL 18823 in suitable culture medium. Insecticidal and ectoparasiticidal compositions containing new A83543 components are also provided.