Petkov A, Karaivanov L
Vet Med Nauki. 1976;13(8):86-90.
Studied was the antagonistic action of 4 strains of Pseudomonas aeruginosa toward 48 strains of Pasteurella multocida. Use was made of the method of the delayed antagonism after Fredericq. Ps. aeruginosa organisms were found to manifest a strongly expressed antagonistic activity as regards P. multocida. All Pasteurella strains proved highly sensitive, and showed a zone of inhibited growth sizing from 20 to 70 mm. The antibiotic substance produced by Pseudomonas aeruginosa organisms was yielded better on solid nutrient media than in liquid ones. All Pseudomonas aeruginosa strains manifested bactericidal and not bacteriostatic action upon the studied strains of Pasteurella multocida.
研究了4株铜绿假单胞菌对48株多杀性巴氏杆菌的拮抗作用。采用弗雷德里克（Fredericq）的延迟拮抗法。发现铜绿假单胞菌对多杀性巴氏杆菌表现出强烈的拮抗活性。所有巴氏杆菌菌株均被证明高度敏感，其生长抑制圈大小为20至70毫米。铜绿假单胞菌产生的抗生素物质在固体营养培养基上比在液体培养基上产量更高。所有铜绿假单胞菌菌株对所研究的多杀性巴氏杆菌菌株均表现出杀菌而非抑菌作用。
