Table II. Cytokinin content in the root and shoot of shr-2 and wild-type seedlings.
The values for cytokinin content are means ± sd from triplicate measurements. Units are pmol g−1 fresh weight. tZ, Transzeatin; tZR, tZ riboside; tZRPs, tZR mono-, di-, and triphosphates; cZ, cis-zeatin; cZR, cZ riboside; cZRPs, cZR mono-, di-, and triphosphates; iP, N6-(Δ2-isopentenyl)adenine; iPR, iP riboside; iPRPs, iPR mono-, di-, and triphosphates; tZ7G, tZ-7-glucoside; tZ9G, tZ-9-glucoside; tZOG, tZ-O-glucoside; tZROG, tZR-O-glucoside; cZROG, cZR-O-glucoside; DZ9G, dihydrozeatin riboside; iP7G, iP-7-glucoside; iP9G, iP-9-glucoside; N.D., not detected.
| Cytokinin | Wild-Type Root | shr-2 Root | Wild-Type Shoot | shr-2 Shoot |
| tZ | 0.23 ± 0.02 | 0.98 ± 0.39a | 0.33 ± 0.16 | N.D. |
| tZR | 1.22 ± 0.12 | 8.78 ± 3.22b | 1.67 ± 0.73 | 3.60 ± 0.23 |
| tZRPs | 32.22 ± 11.39 | 22.01 ± 4.53 | 53.19 ± 5.10 | 9.21 ± 6.45b |
| cZ | 2.40 ± 0.17 | 1.89 ± 0.49a | 0.61 ± 0.04 | N.D. |
| cZR | 14.30 ± 2.44 | 30.97 ± 10.38b | 8.66 ± 1.69 | 44.01 ± 10.00b |
| cZRPs | 5.52 ± 0.85 | 25.81 ± 6.53b | 11.68 ± 4.90 | 3.09 ± 1.62 |
| iP | 0.42 ± 0.08 | 0.53 ± 0.12 | 0.56 ± 0.14 | 1.12 ± 0.004 |
| iPR | 5.67 ± 0.66 | 7.70 ± 0.79b | 22.10 ± 7.94 | 22.49 ± 3.19 |
| iPRPs | 0.36 ± 0.06 | 3.70 ± 0.74b | 11.53 ± 1.23 | 2.27 ± 2.01b |
| tZ7G | 1.78 ± 0.20 | 6.08 ± 1.19b | 10.63 ± 1.68 | 10.09 ± 2.55 |
| tZ9G | 1.93 ± 0.15 | 7.84 ± 1.58b | 12.36 ± 1.81 | 11.16 ± 3.64 |
| tZOG | 1.16 ± 0.13 | 4.88 ± 1.01b | 3.11 ± 0.97 | 5.21 ± 0.27 |
| tZROG | 0.04 ± 0.004 | 0.25 ± 0.04b | 0.33 ± 0.06 | 0.44 ± 0.14 |
| cZROG | 0.03 ± 0.002 | 0.10 ± 0.02a | 0.81 ± 0.28 | 1.66 ± 0.52 |
| DZ9G | 0.01 ± 0.002 | 0.06 ± 0.01b | 0.05 ± 0.01 | 0.07 ± 001 |
| iP7G | 10.13 ± 2.1 | 12.13 ± 0.10 | 37.88 ± 11.52 | 35.99 ± 4.77 |
| iP9G | 1.02 ± 0.1 | 1.36 ± 0.09b | 3.26 ± 0.93 | 2.66 ± 0.07 |
a
0.05 ≤ P ≤ 0.10 (from t test).
b
P ≤ 0.05 (from t test).