TABLE 1.

B. Subtilis strains used in this study

Strain	Genotypea	Source, reference, and/or derivationb
168	trpC2	This laboratory
QB7097	trpC2 crh::spc	I. Martin-Verstraete
GM1222	trpC2 pheA1 Δ(bgaX) ptsH1(cat) ΔamyE:: (gntRK′-lacZ)	6
JZ4	trpC2 crh::spc	168 × QB7097 DNAs
JZ5	trpC2 ptsH1(cat)	168 × GM1222 DNAs
JZ6	trpC2 glcK::spc	43
JZ7	trpC2 ccpB::spc	43
TH256	ccpA::Tn917lac lys-3 trpC2 metB10	T. Henkin
SF168CP	trpC2 ccpA::Tn917lac	168 × TH256 DNAs
SF168CPS	trpC2 ccpA::Tn917lacΔ(lacZ erm)::spc	SF168CP × p917::Sp DNAs, 35
SF62	trpC2 tnrA62::Tn917	38
SF168A	trpC2 ΔglnA::spc	168 × pGLN14 DNAs, 38
SF62A	trpC2 tnrA62::Tn917 ΔglnA::spc	SF62 × pGLN14 DNAs 38
SF10	Wild type	10
SF22	glnA22	10

^aThe genotype symbols are those of Biaudet et al. (2) with the addition of crh (14), tnrA (38), and glcK (32). 

^bStrains were derived by transforming the first strain listed with DNA from the second strain or the plasmid listed.