CdCl2, Conc.,

mM

GS activity, units

g−1 fr.wt. mg−1 protein

Fd-GOGAT activity, units

g−1 fr.wt. mg−1 protein

0.0

18.5 ± 1.5 (100) 1.2 ± 0.1 (100)

536 ± 106 (100) 24.4 ± 2 (100)

0.5

10.4 ± 1.0*** (56) 0.8 ± 0.1** (67)

771 ± 183(137) 56.0 ± 14* (229)