Table I.

Specificity of the lanthanide effect on the ABA-inducible Em and HVA1 promoters in transiently transformed protoplasts

TreatmentsPromoter Fold-Induction (±se)
ABASalt35SEmHVA1
μm mm
001.01.01.0
10000.8 (0.1)16.6 (2.0)13.7 (1.0)
01 LaCl3 1.1 (0.0)2.2 (0.6)3.21-a (0.5)
02 TbCl3 1.1 (0.1)4.61-a (0.2)n/a1-c
05 LaCl3 1.4 (0.3)2.7 (0.8)3.81-a (0.4)
1001 LaCl3 1.1 (0.1)32.61-b (2.9)29.61-b (5.6)
1002 TbCl3 1.2 (0.1)31.91-b (1.5)n/a1-c
1005 LaCl3 1.1 (0.4)38.81-b (9.9)24.1 (5.5)

Induction was calculated as the average ratio of relative reporter gene activities (promoter-GUS/Ubi-LUC) between treatment and control (set to unity) from three- or four-paired replicates in two independent experiments.

    • F1-a  Significantly higher than control,P < 0.03 (one-sided paired ttest).

    • F1-b  Significantly higher than ABA treatment, P < 0.06 (one-sided paired ttest).

    • F1-c  n/a, Not analyzed.