Table IV.

Effect of various concentrations (0, 0.1, and 1 mm) of non-enriched ¹³C Pro on the l-[5-¹³C]Glu metabolites

Sample Exogenous Pro Metabolites	P2			RNa
	0 mm	0.1 mm	1 mm	0 mm	0.1 mm	1 mm
[5-13C]Glu	100	105	109	100	84	105
[5-13C]Pro	100	84	44	100	106	94
[5-13C]Gln	100	104	81	100	73	78

Plantlets were incubated for 24 h in 200 mm NaCl. Result are expressed as a percentage of the corresponding sample without exogenous Pro.