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| Content Provider | Springer Nature Link |
|---|---|
| Author | Fuentes, Paulina Pizarro, Lorena More, Juan Camilo Handford, Michael Rodriguez Concepcion, Manuel Stange, Claudia |
| Copyright Year | 2012 |
| Abstract | Carrot is an important nutritional crop due to the high levels of pro-vitamin A carotenoids (β-carotene and, to a lower extent, α-carotene) that accumulate in its storage root during secondary growth. In this work we show that in carrots, contrary to that reported for aerial organs of other plant species, light has a profound effect on root development by inhibiting root thickening, preventing the differentiation of chromoplasts and eventually repressing the expression of most genes required for the biosynthesis of β-carotene and α-carotene and to a lesser extent genes for xanthophylls and apocarotenoids biosynthesis. We observed a correlation in the carotenoid profile and the patterns of gene expression during the development of root segments grown either in the light or in the dark, which suggests a transcriptional regulation for carotenoid synthesis during carrot root development. Furthermore, our work supports the conclusion that the differentiation of chromoplasts coincides with carotenoid accumulation during the later stages of development of underground storage roots. |
| Starting Page | 47 |
| Ending Page | 59 |
| Page Count | 13 |
| File Format | |
| ISSN | 01674412 |
| Journal | Plant Molecular Biology |
| Volume Number | 79 |
| Issue Number | 1-2 |
| e-ISSN | 15735028 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2012-03-18 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Carotenoids Chloroplast Chromoplast Daucus carota Development Root Plant Pathology Biochemistry Plant Sciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Plant Science Medicine Agronomy and Crop Science |
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