Table I.

Types of variation in the level of expression of the 274 individual spots reproducibly detected in 2-D gels between 12 and 20 DAP

		Proteins with NV > 10,000		Proteins with NV < 10,000
Class	Characteristics	No. of proteins detected	No. of proteins identified	No. of proteins detected	No. of proteins identified
0	Constant level	0	-	90	0
1	Increased level	32	11	61	32
2	Decreased level	0	-	25	13
3	Transiently increased level	0	-	59	23
4	Transiently decreased level	0	-	6	4
5	Varying level	0	-	1	1
Total		32	11	242	73

NV, Normalized spot volume obtained from densitometric analysis of individual spots.