TABLE 2.

FHL and nitrate reductase activities of class III chlorate-resistant mutants

Strain	Relevant genotype	Enzyme activity (nmol min−1 mg of cell protein−1)
		FHL				Nitrate reductase
		LBG	LBG-Mo	Glucose-minimal	LSM	LBGN	LBGN-Mo	LSMN
BW545	Wild type	230	200	210	60	560	650	530
SE1581		<1	<1	<1	20	15	20	225
SE1588		<1	<1	2	20	20	30	200
SE1595	modC	<1	160	NDa	40	25	620	370

^aND, not determined.