Table 2.

Growth of engineered B. subtilis strains on xylose and xylonate.

Strain	Growth rate [h−1]
	Xylonate	Xylose
Bacillus subtilis Δspo	n.d.	0.22 ± 0.02
Bacillus subtilis ΔxylAB	no growth	No growth
Bacillus subtilis ΔxylAB::xylXACDCC	0.47 ± 0.01	No growth
Bacillus subtilis WB	n.d.	0.43 ± 0.01

Bacillus subtilis Δspo encodes the isomerase pathway. Bacillus subtilis ΔxylAB was used as negative control without any catabolic pathway for xylose metabolism. Bacillus subtilis WB contains the genes encoding the Weimberg pathway. n.d., not determined.