TABLE 1.

Bacillus strains used in this study

Strain	Genotype or description	Source or reference
Producer strains
BD2833	his leu met srfA-lacZ (tet)	53
BD2913	his met srfA-lacZ (tet) amyE::xylR Pxyl-comK (ery) (comQ comX comP replaced by genes from B. mojavensis RO-H-1)	53
BD2915	his met srfA-lacZ (tet) amyE::xylR Pxyl-comK (ery) (comQ comX comP replaced by genes from B. subtilis natto NAF4)	53
BD2936	his met srfA-lacZ (tet) amyE::xylR Pxyl-comK (cat) (comQ comX comP replaced by genes from B. mojavensis RO-B-2)	53
BD2940	his leu met srfA-lacZ (tet) amyE::xylR Pxyl-comK (cat) (comQ comX comP replaced by genes from B. subtilis RO-E-2)	2
BD2949	his leu met srfA-lacZ (tet) amyE::xylR Pxyl-comK (cat) (comQ comX comP replaced by genes from B. subtilis RS-D-2)	2
Tester strains
BD2876	his leu met srfA-lacZ (tet) comQ::Km	53
BD2877	his leu met srfA-lacZ (tet) (comQ::phl comX comP replaced by genes from B. subtilis natto NAF4)	53
BD2962	his met srfA-lacZ (tet) amyE::xylR Pxyl-comK (ery) (comQ::pED345 comX comP replaced by genes from B. mojavensis RO-H-1)	53
BD2983	his leu met srfA-lacZ (tet) amyE::xylR Pxyl-comK (cat) (comQ::pED345 comX comP replaced by genes from B. mojavensis RO-B-2)	2
BD3019	his leu met srfA-lacZ (tet) amyE::xylR Pxyl-comK (cat) (comQ::pED375 comX comP replaced by genes from B. subtilis RS-D-2)	2
BD3020	his leu met srfA-lacZ (tet) amyE::xylR Pxyl-comK (cat) (comQ::pED375 comX comP replaced by genes from B. subtilis RO-E-2)	2
Other strains used
RO-FF-1	B. subtilis 168, Mojave Desert, Rosamond, CA	40
B. cereus	Isolated from milk	Gift from S. Smole Mozina