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| Pàgina inicial > Articles > Articles publicats > Evolutionary recycling of light signaling components in fleshy fruits : |
(Centre de Recerca en Agrigenòmica) (Centre de Recerca en Agrigenòmica)| Data: | 2016 |
| Resum: | Besides an essential source of energy, light provides environmental information to plants. Photosensory pathways are thought to have occurred early in plant evolution, probably at the time of the Archaeplastida ancestor, or perhaps even earlier. Manipulation of individual components of light perception and signaling networks in tomato (Solanum lycopersicum) affects the metabolism of ripening fruit at several levels. Most strikingly, recent experiments have shown that some of the molecular mechanisms originally devoted to sense and respond to environmental light cues have been re-adapted during evolution to provide plants with useful information on fruit ripening progression. In particular, the presence of chlorophylls in green fruit can strongly influence the spectral composition of the light filtered through the fruit pericarp. The concomitant changes in light quality can be perceived and transduced by phytochromes (PHYs) and PHY-interacting factors, respectively, to regulate gene expression and in turn modulate the production of carotenoids, a family of metabolites that are relevant for the final pigmentation of ripe fruits. We raise the hypothesis that the evolutionary recycling of light-signaling components to finely adjust pigmentation to the actual ripening stage of the fruit may have represented a selective advantage for primeval fleshy-fruited plants even before the extinction of dinosaurs. |
| Ajuts: | European Commission 300862 Ministerio de Economía y Competitividad FPDI-2013-018882 Ministerio de Economía y Competitividad BIO2011-23680 Ministerio de Economía y Competitividad BIO2014-59092-P Ministerio de Educación y Ciencia AP2012-0189 Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-1434 |
| Drets: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.  |
| Llengua: | Anglès |
| Document: | Article ; recerca ; Versió publicada |
| Matèria: | Photosensory pathways ; Light ; Fleshy fruits ; Ripening ; Evolution |
| Publicat a: | Frontiers in plant science, Vol. 7 (March 2016) , art. 263, ISSN 1664-462X |
| Obra relacionada: | Llorente, Briardo; d'Andrea, Lucio and Rodríguez-Concepción, Manuel. «Corrigendum: Evolutionary Recycling of Light Signaling Components in Fleshy Fruits: New Insights on the Role of Pigments to Monitor Ripening». Frontiers in Plant Science, Vol. 13 (April 2022), art. 900067 https://doi.org/10.3389/fpls.2022.900067 |
