Table 2.

A comparison of thiol compounds and their effect on transient gene expression of GUSPlus.

Treatment*	GUS-positive seedlings
	Total, n*	Mean ± SE†	%
H2O, AS	21	7.0 ± 0.6b	14.0
H2O, cysteine, AS	26	8.7 ± 2.3b	17.3
H2O, DTT, AS	29	9.7 ± 2.2b	19.3
H2O, cysteine, DTT, AS	47	15.7 ± 1.9a	31.3

AS = acetosyringone; DTT = dithiothreitol.

All of the treatments included 1 minute of sonication.

*Three replicates of 50 seedlings per replicate were tested in each treatment.

†Means followed by the same letter (a, b, c) were not significantly different at the 5% level as determined by The Tukey multiple comparison test.