Table II.
Nucleotide levels in roots of 3-week-old plants of the Arabidopsis genotypes
Roots were harvested 6 h into the photoperiod from hydroponic cultures as described in “Materials and Methods.” Samples were frozen immediately in liquid N2 and extracted in trichloroacetic acid. Values are means ± se from four to six plants per genotype. Values set in bold type indicate those determined by the Student's t test to be significantly different (P < 0.05) from Col-0.
| Nucleotide | Col-0 | Atpadk1 |
|---|---|---|
| nmol g FW−1 | ||
| ATP | 6.0 ± 1.1 | 3.2 ± 1.2 |
| ADP | 4.4 ± 1.3 | 1.0 ± 0.5 |
| ATP/ADP | 2.4 ± 0.9 | 3.5 ± 0.7 |
| Σ Adenylate | 10.4 ± 2.2 | 4.1 ± 1.5 |
| UDP-Glc | 4.2 ± 1.2 | 3.0 ± 0.6 |
| UDP | 19.0 ± 7.8 | 17.3 ± 3.8 |