INVESTIGADORES
LAGORIO MarÍa Gabriela
artículos
Título:
Modelling chlorophyll fluorescence of kiwi fruit (Actinidia deliciosa)
Autor/es:
MENDES NOVO, J.; IRIEL, ANALÍA ; LAGORIO, M. G.
Revista:
Photochemical and Photobiological Sciences
Editorial:
ROYAL SOC CHEMISTRY
Referencias:
Lugar: London; Año: 2012 p. 724 - 730
ISSN:
1474-905X
Resumen:
Kiwi fruit displays chlorophyll fluorescence. A physical model was developed to reproduce the observedoriginal fluorescence for the whole fruit, from the emission of the different parts of the kiwi fruit. Thespectral distribution of fluorescence in each part of the fruit, was corrected to eliminate distortions due tolight re-absorption and it was analyzed in relation to photosystem II?photosystem I ratio. Kiwi fruit also displays variable chlorophyll-fluorescence, similar to that observed from leaves. The maximum quantum efficiency of photosystem II photochemistry (Fv/Fm), the quantum efficiency of photosystem II (ΦPSII), and the photochemical and non-photochemical quenching coefficients (qP and qNP respectively) were determined and discussed in terms of the model developed. The study was extended by determining the photosynthetic parameters as a function of the storage time, at both 4 °C and room temperature for25 days.