Table VI.
Concentrations of mitochondrial quinones (in nmol g−1 fresh wt) in root tips from Fe-sufficient and Fe-deficient sugar beet
| +Fe (0–10 mm) | −Fe
|
−Fe YZ/+Fe | −Fe WZ/+Fe | ||
|---|---|---|---|---|---|
| YZ | WZ | ||||
| Qr (Q10) | 1.73 ± 0.74 | 6.48 ± 2.80 | 2.79 ± 0.48 | 3.7 | 1.6 |
| Qo (Q10) | 2.34 ± 0.62 | 6.01 ± 3.07 | 7.54 ± 2.80 | 2.6 | 3.2 |
| Qt (Q10) | 4.07 | 12.49 | 10.3 | 3.0 | 2.5 |
| Qr/Qt (Q10) | 42 ± 2% | 52 ± 4% | 27 ± 4% | 1.23 | 0.64 |
Data are the mean ± se of five replications. In the control roots no differences were found between Q10 concentrations in the 0 to 5 mm and 5 to 10 mm fractions (data not shown). Because of this reason, only mean values corresponding to the root 0 to 10 mm section from the apex are given.