Sporulation-converting bacteriophages for Bacillus pumilus.
نویسندگان
چکیده
Thirty-three sporulation-converting bacteriophages for Bacillus pumilus NRS576 were assigned to two apparently unrelated groups on the basis of morphology and antiserum neutralization. Bacterial sporulation mutants responded similarly (conversion or nonconversion) to representatives of both phage groups. Evidence is presented indicating that PMB1 and related phages specify a restriction and/or modification system.
منابع مشابه
Plasmid in Bacillus pumilus and the enhanced sporulation of plasmid-negative variants.
Approximately 3% of the deoxyribonucleic acid (DNA) of Bacillus pumilus NRS576 can be isolated as covalently closed, circular duplex molecules of homogeneous size. The mol wt of the 576 plasmid is approximately 30 million. NRS576 (plasmid(+)) is oligosporogenic; less than 1% of the cells form spores during incubation in liquid AK sporulation medium. Variants that form spores at a high frequency...
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عنوان ژورنال:
- Journal of virology
دوره 27 3 شماره
صفحات -
تاریخ انتشار 1978