TABLE 1.

Bacterial strains and bacteriophages

Strain or phage	Derivation or genotype	Source or reference
Strains
JH642	trpC2 phe-1	J. A. Hoch
EUB9401	JH642 transformed with pJB2wtsigA	1
EUB9402	JH642 transformed with pJB2K356EsigA	1
EUB9403	JH642 transformed with pJB2H359RsigA	1
EUC9603	JH642 transformed with pJB2H359AsigA	25
EUC9762	EUB9401 transformed with pCB2wtspo0A	This work
EUC9766	EUB9401 transformed with pCB2spo0AS231F	This work
EUC9708	EUC9402 transformed with pCB2wtspo0A	This work
EUC9795	EUC9402 transformed with pCB2spo0AS231F	This work
EUC9720	EUB9403 transformed with pCB2wtspo0A	This work
EUC9722	EUB9403 transformed with pCB2spo0AS231F	This work
EUC9723	EUC9603 transformed with pCB2wtspo0A	This work
EUC9725	EUC9603 transformed with pCB2spo0AS231F	This work
EUC9763	EUB9401 transformed with pCB2spo0AI229A	This work
EUC9764	EUB9401 transformed with pCB2spo0AD230A	This work
EUC9765	EUB9401 transformed with pCB2spo0AS231A	This work
EUC9767	EUB9401 transformed with pCB2spo0AI232A	This work
EUC9768	EUB9401 transformed with pCB2spo0AS233A	This work
EUC9790	EUB9401 transformed with pCB2spo0A195	This work
Bacteriophages
SPβ spoIIG-lacZ		22
SPβ spoIIA-lacZ		31
SPβ abrB-lacZ		33