Table IV. Average concentrations and sd values of steady-state levels of chlorophyll precursors (Mg porphyrins and Pchlide) of tobacco wild type and the four LCAA antisense lines.
The samples for Pchlide analysis in darkness were harvested after a 15-h dark period.
| Plant | MgProtoIX | MgProtoMME | Pchlide | Pchlide (Dark) |
|---|---|---|---|---|
| pmol g−1 fresh wt | ||||
| Wild type | 24 ± 11 | 11 ± 3 | 678 ± 149 | 6,156 ± 674 |
| LCAA1 | 55 ± 19 | 252 ± 187 | 309 ± 34 | 4,499 ± 610 |
| LCAA2 | 163 ± 97 | 2,110 ± 1,883 | 400 ± 88 | 4,213 ± 646 |
| LCAA3 | 451 ± 72 | 3,994 ± 904 | 127 ± 11 | 1,878 ± 645 |
| LCAA4 | 125 ± 26 | 1,261 ± 305 | 133 ± 16 | 1,163 ± 200 |