Table 1.

Bacillus subtilis strains used in this work

Strain	Genotype	Source
BSB1	trp +	[32]
Bs005	glnR::glnR-spa erm	This study
Bs013	perR::perR-spa erm	This study
BSB21	ΔglnR::spc	This study
BSB53	ΔtnrA::spc	(Mirouze et al. [8])
BLUC85	PalsT′-luc cat	(Mirouze et al. [8])
BLUC86	PalsT′-luc cat ΔtnrA::spc	(Mirouze et al. [8])
BLUC302	PalsT′-luc cat ΔglnR::spc	This study
BLUC313	PtnrA′-luc cat	This study
BLUC314	PtnrA′-luc cat ΔglnR::spc	This study
BLUC315	PtnrA′-luc cat glnR::glnR-spa erm	This study