Table 1. A cis-carotene derived ACS acts in parallel to DET1 to control PLB formation.
| Germplasm | Hypocotyl Length (mm) |
Apical hook | Cotyledon | % PLB (-D15) |
% PLB (+D15) |
cis-carotenes | |
|---|---|---|---|---|---|---|---|
| WT | Normal | 13.4 ± 0.2 | Yes | Closed | 100 | 100 | None detected |
| ccr2 | normal | 13.8 ± 0.2 | yes | closed | 0 | 85 | phyt, pflu, ζ-C, p-N, p-Lyc |
| ccr2 det1-154 | shorter | *8.3 ± 0.2 | no | open | 69 | 0 | reduced cis-carotenes |
| det1-154 | shorter | *9.9 ± 0.1 | no | open | ND | ND | phyt, pflu and ζ-C |
ND; not determined; p-N; pro-neurosporene, p-Lyc; pro-lycopene (tetra-cis-lycopene), phyt; phytoene, pflu; phytoflurene, ζ-c; ζ-carotene, *; denotes statistical significance (ANOVA, p<0.05).