TABLE 1.

B. subtilis strains used^a

Strain	Genotype	Source or reference
PS832	Prototrophic derivative of strain 168	Laboratory stock
FB49	amyE::gerB	23
FB58	PsspB::gerB	pFE135A→PS832
FB60	ΔgerB::spc	23
FB72	ΔgerA::spc ΔgerB::cat ΔgerK::ermC	24
FB86	ΔgerA::spc ΔgerK::ermC	24

^aAll strains were derived from PS832.