Life after harvest: circadian regulation in photosynthetic pigments of rocket leaves during supermarket storage affects the nutritional quality
Ruiz de Larrinaga, Lorena
Guil Guerrero, José Luis
Becerril, José María
García-Plazaola, José Ignacio
MetadataShow full item record
Vegetables, once harvested and stored on supermarket shelves, continue to perform biochemical adjustments due to their modular nature and their ability to retain physiological autonomy. They can live after being harvested. In particular, the content of some essential nutraceuticals, such as carotenoids,
can be altered in response to environmental or internal stimuli. Therefore, in the present study, we wondered whether endogenous rhythms continue to operate in commercial vegetables and if so, whether vegetable nutritional quality could be altered by such cycles. Our experimental model consisted of rocket leaves entrained under light/darkness cycles of 12/12 h over 3 days, and then we examined free-run oscillations for 2 days under continuous light or continuous darkness, which led to chlorophyll and carotenoid oscillations in both constant conditions. Given the importance of preserving food quality, the existence of such internal rhythms during continuous conditions may open new research perspective in nutrition science. However, while chromatographic techniques employed to determine pigment composition are accurate, they are also time-consuming and expensive. Here we propose for the first time an alternative method to estimate pigment content and the nutritional quality by the use of non-destructive and in situ optical techniques. These results are promising for nutritional quality assessments.
Is part ofNutrients, 2019, vol. 11, núm. 7, article number 1519
Except where otherwise noted, this item's license is described as cc-by (c) Ruiz de Larrinaga et al., 2019
Showing items related by title, author, creator and subject.
Circadian rhythms regulate the environmental responses of net CO2 exchange in bean and cotton canopies Resco de Dios, Víctor; Gessler, Arthur; Ferrio Díaz, Juan Pedro; Alday, Josu G.; Bahn, Michael; Del Castillo, Jorge; Devidal, Sébastien; García-Muñoz, Sonia; Kayler, Zachary; Landais, Damien; Martín Gómez, Paula; Milcu, Alexandru; Piel, Clément; Pirhofer Walzl, Karin; Ravel, Olivier; Salekin, Serajis; Tissue, David T.; Tjoelker, Mark G.; Voltas Velasco, Jordi; Roy, Jacques (Elsevier, 2017)Studies on the dependence of the rates of ecosystem gas exchange on environmental parameters often rely on the up-scaling of leaf-level response curves ('bottom-up' approach), and/or the down-scaling of ecosystem fluxes ...
Endogenous circadian rhythms in pigment composition induce changes in photochemical efficiency in plant canopies García-Plazaola, José Ignacio; Fernández-Marín, beatriz; Ferrio Díaz, Juan Pedro; Alday, Josu G.; Hoch, Günter; Landais, Damien; Milcu, Alexandru; Tissue, David T.; Voltas Velasco, Jordi; Gessler, Arthur; Roy, Jacques; Resco de Dios, Víctor (Wiley, 2017-02-01)There is increasing evidence that the circadian clock is a signif- icant driver of photosynthesis that becomes apparent when environmental cues are experimentally held constant. We studied whether the composition of ...
Resco de Dios, Víctor (American Society of Plant Biologists, 2017)