Table 2.

Influence of Inhibitors and Protonophores on the Adenine/Cytosine Uptake Rate in MG887-1pAtPUP1^a

Inhibitors	Adenine Uptake Rate (nmol mg DW−1 min−1)b	Cytosine Uptake Rate (nmol mg DW−1 min−1)
Without inhibitor	1.33	0.68
Diethylstilbestrol (100 μM)	0.046	0.027
N, N′-Dicyclohexylcarbodiimide (100 μM)	0.75	0.36
Carbonyl cyanide m-chlorphenyl-hydrazone   (100 μM)	0.19	0.12
2,4-Dinitrophenol (100 μM)	0.55	0.37

^aAdenine and cytosine concentrations were 100 μM.

^bDW, dry weight.