Table I.

MCCase activity in developing soybean organs

Organ	Developmental Stage	MCCase Activitya
	DAFb	nmol min−1mg−1 protein
Developing seeds	20	6.9
	30	9.9
	40	5.6
	50	3.3
Dry seeds		4.3
Seed pod coat	10	2.5
	20	5.0
	30	6.0
	40	3.3
	50	2.3
	60	0.8
Reproductive leafc	10	1.2
	20	1.3
	30	1.3
	40	1.3
	50	0.02
Young leafd		3.4
Mature leafe		2.7

^aAverage of three replicates. se = 0.7 nmol min⁻¹mg⁻¹ protein. 

^bDays after flowering. 

^cReproductive leaf is the leaf next to a seed pod and is staged relative to flowering. 

^dYoung leaf is the first true leaf of 14-d-old plants. 

^eMature leaf is the first true leaf of 30-d-old plants, before flowering.