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dc.contributor.authorCalatayud, Ángeles
dc.contributor.authorIglesias, Domingo J.
dc.contributor.authorTalón, Manuel
dc.contributor.authorBarreno, Eva
dc.identifier.citationCalatayud, A., Iglesias, D. J., Talón, M., Barreno, E. (2003). Effects of 2-month ozone exposure in spinach leaves on photosynthesis, antioxidant systems and lipid peroxidation. Plant Physiology and Biochemistry, 41(9), 839-845.
dc.description.abstractThe photosynthesis response, antioxidant systems and lipid peroxidation were studied in leaves from spinach plants (Spinacia oleracea L.) in response to ozone fumigation, ambient air and charcoal filtered air treatments. The photosynthetic activity was tested through gas exchange and chlorophyll a fluorescence measurements. Ambient air and ozone fumigation caused a decrease in the photosynthetic rate (25% and 63%, respectively) mainly due to a reduced mesophyll activity, as evidenced by the increased intercellular CO, concentration. These data agree with a large reduction in the non-cyclic electron flow (7% and 16%), a lower capacity to reduce the quinone pool and a higher development of non-photochemical quenching upon high O-3 concentration. The results suggest that the oxidative stress produced, together with the stimulation of superoxide dismutase (SOD, EC and ascorbate peroxidase (APX, EC activities and the increase in lipid peroxidation (20% and 36%, respectively), generated an alteration of the membrane properties. (C) 2003 Editions scientifiques et medicales Elsevier SAS. All rights reserved.
dc.titleEffects of 2-month ozone exposure in spinach leaves on photosynthesis, antioxidant systems and lipid peroxidation
dc.authorAddressInstituto Valenciano de Investigaciones Agrarias (IVIA), Carretera CV-315, Km. 10’7, 46113 Moncada (Valencia), Españaes 2003
dc.entidadIVIACentro de Genómica
dc.entidadIVIACentro de Citricultura y Producción Vegetal
dc.journal.titlePlant Physiology and Biochemistry

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