 transduct bacillu subtili compar examin temper subtili phage divid group subtili strain nr 231 adequ common host sensit examin temper phage technic advantag strain suitabl titrat subtili phage ii cultur differ reveal substrain subtili 168 ind auxotroph maintain laboratori cell cultur partli capabl partli incap ammonia ammonia assimil transduc ammonia neg bacteria iii mitomycin ultraviolet rai induct examin subtili strain liber bacteriocin -like principl find analog seaman al concern pbsx defect phage basi bacteriocin product examin strain divid group iv temper phage isol laboratori presum ident phage pb 1 phage sp 10 differ agent antigen structur host rang transduct lysat pb 1-type phage observ frequenc order 10 consider effect phage materi yield lysogen transduct transduc phage activ order 10 prepar vi transduct frequenc addit properti phage influenc physiolog condit bacteria vii transduct indol histidin loci studi deriv strain 168 ind 