Table I.

Total PGM activities in extracts from potato leaves and tubers

Proteins were extracted from leaves or from growing tubers of two cPGM-overexpressing (lines A and B) or two cPGM-underexpressing (lines C and D) potato lines. Total PGM activities and protein concentrations were monitored. Specific activities are given as percentage of the respective wild-type control, which was designated 100%. Mean values and sd are given (three independently performed experiments, each with three replicas).

Line	PGM Activity
	Leaves	Tubers
A	133 ± 13	123 ± 7
B	201 ± 36	108 ± 5
C	38 ± 2	52 ± 5
D	73 ± 3	68 ± 8