Table 1.

Arg-dependent NOS-like activity in extracts from roots of the control plants grown in water or from roots of tomato seedlings treated with CAN (10 or 50 µM) for 24 and 72 h.

Plant treatment	Arg-dependent
	NOS-like activity (nmol NO min-1 g-1 protein)
	24 h	72 h
Control (water)	0.33 ± 0.05	0.38 ± 0.01
CAN 10 µM	0.12 ± 0.02*	0.20 ± 0.03*
CAN 50 µM	0.09 ± 0.01*	0.10 ± 0.01*

Values are average ± SD of three to four repetitions. Asterisks (*) indicate significance between treatments and the control at the same time of culture period at P ≤ 0.05, based on Student’s test.