Effects of 2-month ozone exposure in spinach leaves on photosynthesis, antioxidant systems and lipid peroxidation
The 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 f...
| Autores principales: | , , , |
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| Formato: | Artículo |
| Lenguaje: | Inglés |
| Publicado: |
2017
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| Acceso en línea: | http://hdl.handle.net/20.500.11939/4917 |
| _version_ | 1855491834721075200 |
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| author | Calatayud, Ángeles Iglesias, Domingo J. Talón, Manuel Barreno, Eva |
| author_browse | Barreno, Eva Calatayud, Ángeles Iglesias, Domingo J. Talón, Manuel |
| author_facet | Calatayud, Ángeles Iglesias, Domingo J. Talón, Manuel Barreno, Eva |
| author_sort | Calatayud, Ángeles |
| collection | ReDivia |
| description | The 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 1.15.1.1) and ascorbate peroxidase (APX, EC 1.11.1.11) 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. |
| format | Artículo |
| id | ReDivia4917 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | ReDivia49172025-04-25T14:44:55Z Effects of 2-month ozone exposure in spinach leaves on photosynthesis, antioxidant systems and lipid peroxidation Calatayud, Ángeles Iglesias, Domingo J. Talón, Manuel Barreno, Eva The 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 1.15.1.1) and ascorbate peroxidase (APX, EC 1.11.1.11) 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. 2017-06-01T10:11:20Z 2017-06-01T10:11:20Z 2003 SEP 2003 article Calatayud, 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. 0981-9428 http://hdl.handle.net/20.500.11939/4917 10.1016/S0981-9428(03)00123-2 en openAccess Impreso |
| spellingShingle | Calatayud, Ángeles Iglesias, Domingo J. Talón, Manuel Barreno, Eva Effects of 2-month ozone exposure in spinach leaves on photosynthesis, antioxidant systems and lipid peroxidation |
| title | Effects of 2-month ozone exposure in spinach leaves on photosynthesis, antioxidant systems and lipid peroxidation |
| title_full | Effects of 2-month ozone exposure in spinach leaves on photosynthesis, antioxidant systems and lipid peroxidation |
| title_fullStr | Effects of 2-month ozone exposure in spinach leaves on photosynthesis, antioxidant systems and lipid peroxidation |
| title_full_unstemmed | Effects of 2-month ozone exposure in spinach leaves on photosynthesis, antioxidant systems and lipid peroxidation |
| title_short | Effects of 2-month ozone exposure in spinach leaves on photosynthesis, antioxidant systems and lipid peroxidation |
| title_sort | effects of 2 month ozone exposure in spinach leaves on photosynthesis antioxidant systems and lipid peroxidation |
| url | http://hdl.handle.net/20.500.11939/4917 |
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