Table II. Phytohormone levels (ng g−1 fresh weight) in roots of HCT antisense and wild-type alfalfa.
Results are means of three biological replicates ± se. Values with different letters are significantly different between wild-type and HCT down-regulated lines (P < 0.05).
| Hormone | Wild Type | HCT |
|---|---|---|
| Abscisic acid | 1.7 ± 0.1 a | 3.3 ± 0.2 b |
| Jasmonic acid | 24.2 ± 3.7 a | 40.6 ± 2.1 b |
| Jasmonic acid conjugated to Ile | 1.1 ± 0.1 a | 1.5 ± 0.03 b |
| SA | 41.0 ± 7.1 a | 18.0 ± 0.5 b |
| GA4 | 0.03 ± 0.002 a | 1.0 ± 0.5 b |
| GA1 | 0.2 ± 0.02 a | 0.5 ± 0.03 b |
| Indoleacetic acid | 13.4 ± 0.5 a | 11.5 ± 1.1 a,b |
| Trans-zeatin | 0.07 ± 0.01 a | 0.09 ± 0.01 a |
| Isopentenyl adenine | 0.04 ± 0.001 a | 0.04 ± 0.04 a |
| Dihydrozeatin | 0.02 ± 0.03 a | 0.03 ± 0.01 a |