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首页> 外文期刊>Applied Microbiology >Characterization of Two Psychrophilic Pseudomonas Bacteriophages Isolated from Ground Beef
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Characterization of Two Psychrophilic Pseudomonas Bacteriophages Isolated from Ground Beef

机译：分离自绞细牛肉的两个嗜冷假单胞菌噬菌体的表征

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摘要

Characterization studies were performed on two psychrophilic phages which were isolated from ground beef samples. Phage inactivation by exposure to heat, low pH, osmotic shock conditions, and freezing showed that these two isolates were different. One-step growth experiments indicated that one isolate had a burst size five times as large (500) and a latent period two times as long (4 hr) as the other when tested at 7 C. Nucleic acid type was 2-deoxyribonucleic acid for both. Electron micrographs showed one to belong to Bradley's phage group A and the other to phage group C.
机译：从分离的牛肉样品中分离出的两个嗜冷噬菌体进行了表征研究。通过暴露于热，低pH，渗透压休克条件和冷冻使噬菌体失活，表明这两种分离物是不同的。一步生长实验表明，当在7 C下进行测试时，一种分离物的破裂大小是另一种分离物的破裂大小的五倍（500），潜伏期是另一种的两倍（4小时）。核酸类型为2-脱氧核糖核酸都。电子显微照片显示，一个属于布拉德利噬菌体组A，另一个属于噬菌体组C。

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