Table IV.

Total palmitoyl-CoA-dependent ACAD activity in crude protein extracts from maize and sunflower tissues

Tissue	Enzyme Activity
	ACAD	Acyl-CoA thioesterase
	nmol min−1 g−1 fresh wt
Maize plantlets
Whole seminal root	4  ± 1	12  ± 2
Carbohydrate-starved  root tip	32  ± 8	100  ± 10
Early-germinating sunflower  seeds
Embryonic axes	30  ± 10	NDa
Cotyledons	25  ± 5	100  ± 10

ACAD and acyl-CoA thioesterase activities were measured as described in Methods in the presence of 50 μm palmitoyl-CoA. Maize and sunflower tissues were obtained and protein extraction was carried out as described in Methods. Results are the means ± range or ± se from two or three experiments.

^aND, Not detected.