Influence of B. subtilis 3NA mutations in spo0A and abrB on surfactin production in B. subtilis 168

Table 1 Summary of surfactin production parameters for all mutant strains constructed in this study

Strain	Genotype	CDW_Srf,max	Surfactin_max	Μ = μ_overall	Y_P/X	Y_P/S	P_srfA,max
Strain	Genotype	g L⁻¹	g L⁻¹	h⁻¹	g g⁻¹	g g⁻¹	MU
KM1016	168 sfp⁺	2.25	1.20	0.176	0.53	0.14	414
KM1018^a	Δspo0A	4.67	0.22	0.274	0.05	0.01	57
KM1019^a	ΔabrB	2.77	1.25	0.080	0.45	0.08	351
KM1043^a	abrB::abrB*	3.06	1.40	0.078	0.46	0.08	400
KM1028^a	Δabh	2.74	1.47	0.174	0.54	0.11	357
KM1020^a	Δspo0A ΔabrB	0.85	0.56	0.067	0.62	0.04	301
KM1036^a	Δspo0A abrB::abrB*	2.77	1.31	0.207	0.47	0.11	292
KM1029^a	Δspo0A Δabh	5.05	0.38	0.205	0.07	0.02	105
KM1053	3NA sfp⁺	3.35	1.42	0.285	0.42	0.10	254

ISSN: 1475-2859