Inducible bacteriophages from ruminal bacteria.

摘要: The incidence of temperate bacteriophage in a wide range ruminal bacteria was investigated by means induction with mitomycin C. Supernatant liquid from treated cultures examined for phagelike particles using transmission electron microscopy. Of 38 studied, nine organisms (23.7%) representing five genera (Eubacteria, Bacteroides, Butyrivibrio, Ruminococcus, and Streptococcus) produced particles. Filamentous Butyrivibrio fibrisolvens are the first this morphological type reported bacteria. All other obtained possessed polyhedral heads long, noncontractile tails (group B-type phage). limited types C cannot yet account much wider found contents direct examination. presence viral genetic material significant percentage tested, as well different genera, indicates that may be normal constituent genome appreciable numbers