Figure 6. GUS transcript levels in LlZFHD4 promoter-transformed Arabidopsis under (A) cold (4 °C), (B) drought (16.1% PEG6000), (C) salt (NaCl 100 mM) and (D) ABA (100 μM).

Columns indicate relative expression levels of GUS normalized against levels of Atactin as calculated by qRT-PCR (mean ±SD of three biological replicates). Significant differences between the stress-treated and untreated LlZFHD4 promoter-transformed plants are indicated as **p-value < 0.01.