Response to ozone in two lettuce varieties on chlorophyll a fluorescence, photosynthetic pigments and lipid peroxidation

Plant Physiology and Biochemistry : PPB
A Calatayud, E Barreno

Abstract

The effect of different O3 concentrations on two lettuce (Lactuca sativa L.) varieties (Valladolid and Morella) was investigated through chlorophyll (Chl) a fluorescence parameters, photosynthetic pigments (Chl a, b and total carotenoid), lipid peroxidation and crop yield. Ozone fumigation caused: a decrease in maximum quantum yield of photosystem II (PSII) photochemistry (Fv/Fm) in mature leaves, a reduction in the non-cyclic electron flow (phiPSII) and a lower capacity to reoxidize the QA pool (qP). These reductions were significant in the Valladolid var. but not in the Morella var. A significant decrease in Chl a, b and in the total carotenoids was observed in the Valladolid var. but not in the Morella var. mainly under O3 fumigation conditions. We observed that the NPQ parameter did not increase in parallel to the qP reduction seen in the Valladolid var. O3 fumigation with respect to air charcoal filtered air conditions. This fact could be associated with a lower capacity for dissipation of non-radiative excess energy and it may be closely correlated with significant decreases in photosynthetic pigment concentration. A decrease in NPQ from air ozone-free to ozone fumigation in the Morella var. can be explained by the need t...Continue Reading

References

Mar 26, 2003·Tree Physiology·Giacomo LorenziniGian Franco Soldatini
Jan 1, 1990·Environmental Pollution·P J TempleR W Lennox

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Citations

Jul 23, 2013·Environmental Science and Pollution Research International·Richa Rai, Madhoolika Agrawal
Mar 19, 2014·Ecotoxicology and Environmental Safety·K Suresh KumarKyung-Hoon Shin
Apr 18, 2014·TheScientificWorldJournal·Haibing HeFu-Yu Ma
May 1, 2015·Environmental Science and Pollution Research International·Elisa PellegriniCristina Nali
Nov 30, 2014·Environmental Pollution·Costas J SaitanisFotini Flouri
Nov 10, 2011·Oecologia·Juliana S MedeirosWilliam T Pockman
Dec 29, 2016·Environmental Science and Pollution Research International·Riccardo MarzuoliGiacomo Gerosa
Apr 4, 2021·International Journal of Molecular Sciences·Mengzhao WangByoung Ryong Jeong
Apr 29, 2008·Journal of Agricultural and Food Chemistry·Hyun-Jin KimDae Young Kwon
Nov 10, 2007·Journal of Agricultural and Food Chemistry·Hyun-Jin KimChieri Kubota

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