Table 3. PPGK activities in cell-free extracts of cyanobacteria.

Measurements were performed at 28–30 °C and pH 7.5; n≥3; nd, not detectable (≤1 nmol min⁻¹ mg⁻¹).

Strain	Section	Growth conditions	PPGK activity (nmol min−1 mg−1) (mean±sd)
Anabaena	IV	+N	4.3±1.3
		−N	5.8±1.3
Anabaena Δall1371	IV	+N	nd
		−N	nd
F. muscicola	V	+N	15.3±2.3
		−N	13.1±2.1
Mastigocladus laminosus	V	+N	23.6±0.7
		−N	13.9±3.2
Synechocystis	I	+N	nd
		−N	nd