TABLE 1.
Comparative transcript abundance of defense genes in romaine lettuce leaves following plant treatment with Bion and BABA treatment relative to the control treatment (H2O)
| Gene | Mean comparative expression (SEM)a |
|
|---|---|---|
| Bion | BABA | |
| PR1 | 3.27 (1.05) | 3.89 (1.11) |
| PR2 | 5.27 (1.23) | ND |
| EDS1 | 5.20 (2.00) | ND |
| PAL2 | 3.07 (1.42) | ND |
| FLS2 | 2.28 (1.03) | ND |
| ERF | BD | 3.73 (1.19) |
| DEF | BD | 4.99 (1.06) |
a
Bion and BABA were applied by soil drench at 0.1% and 4 mg/ml, respectively, and leaves sampled for gene expression 24 h after treatment. Comparative expression was measured by RT-qPCR and is shown as fold change over expression in H2O-treated plants. The data represent the means for three replicate leaves. BD, below detection level; ND, not determined.