Fig. 7

RT-PCR expression profiles of five subfamilies of genes in HD-Zip in response to salt stress. The RNA was isolated from the young leaves of the treated Eucalyptus annual seedlings. The low salinity was treated with 100 mmol/L NaCl, the high salinity was treated with 200 mmol/L NaCl, and the control group was treated with distilled water. The processing time of each group was 0 h, 6 h, 12 h and 24 h