Iverson W G, Millis N F
Can J Microbiol. 1976 Jun;22(6):853-7. doi: 10.1139/m76-123.
Forty-eight strains of Streptococcus bovis were tested for induction with mitomycin C. Eleven inducible strains were found and the lysates of all 11 contained bacteriophage-like particles. The lysate of one strain also contained large numbers of particles which closely resembled polyheads. Eight of the lysates produced zones of inhibition on indicator strains and viable bacteriophages were detected in six lysates. The sources of the S. bovis were ovine and bovine rumen fluid (23 strains), ovine and bovine feces (5 strains), blood cultures from human endocarditis (8 strains), and a wide variety of other sources (12 strains). Only 1 of 23 rumen S. bovis strains was lysogenic, which suggests that lysogenic S. bovis strains are not an important source of bacteriophages in the rumen.
对48株牛链球菌进行了丝裂霉素C诱导试验。发现11株可诱导菌株，所有11株的裂解物中均含有类噬菌体颗粒。其中一株菌株的裂解物还含有大量与多面体非常相似的颗粒。8份裂解物对指示菌株产生抑菌圈，6份裂解物中检测到活噬菌体。牛链球菌的来源为绵羊和牛的瘤胃液（23株）、绵羊和牛的粪便（5株）、人类心内膜炎血培养物（8株）以及各种其他来源（12株）。23株瘤胃牛链球菌中只有1株是溶原性的，这表明溶原性牛链球菌菌株不是瘤胃中噬菌体的重要来源。
