Effects of ozone on photosynthetic CO2 exchange, chlorophyll a fluorescence and antioxidant systems in lettuce leaves
The effects of ozone exposure on lettuce leaves were investigated by means of gas exchange, modulated chlorophyll a fluorescence and antioxidants systems. High ozone concentration decreased the rate of photosynthesis at light saturation level and changes in stomatal conductance and transpiration rat...
| Autores principales: | , , , |
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| Formato: | article |
| Lenguaje: | Inglés |
| Publicado: |
2017
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| Acceso en línea: | http://hdl.handle.net/20.500.11939/4919 |
| _version_ | 1855032196583129088 |
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| author | Calatayud, Ángeles Ramirez, J. W. Iglesias, Domingo J. Barreno, Eva |
| author_browse | Barreno, Eva Calatayud, Ángeles Iglesias, Domingo J. Ramirez, J. W. |
| author_facet | Calatayud, Ángeles Ramirez, J. W. Iglesias, Domingo J. Barreno, Eva |
| author_sort | Calatayud, Ángeles |
| collection | ReDivia |
| description | The effects of ozone exposure on lettuce leaves were investigated by means of gas exchange, modulated chlorophyll a fluorescence and antioxidants systems. High ozone concentration decreased the rate of photosynthesis at light saturation level and changes in stomatal conductance and transpiration rate. However, an increase in intercellular CO2 concentration indicated a decrease in the carboxylation efficiency. These data agreed with a reduction of non-cyclic electron flow and lower capacity to reduce the quinone pool. Ozone affected the ascorbate pool and decreased ascorbate peroxidase activity, increased lipid peroxidation, altered membrane properties and reduced the development of non-photochemical quenching. |
| format | article |
| id | ReDivia4919 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | ReDivia49192025-04-25T14:44:55Z Effects of ozone on photosynthetic CO2 exchange, chlorophyll a fluorescence and antioxidant systems in lettuce leaves Calatayud, Ángeles Ramirez, J. W. Iglesias, Domingo J. Barreno, Eva The effects of ozone exposure on lettuce leaves were investigated by means of gas exchange, modulated chlorophyll a fluorescence and antioxidants systems. High ozone concentration decreased the rate of photosynthesis at light saturation level and changes in stomatal conductance and transpiration rate. However, an increase in intercellular CO2 concentration indicated a decrease in the carboxylation efficiency. These data agreed with a reduction of non-cyclic electron flow and lower capacity to reduce the quinone pool. Ozone affected the ascorbate pool and decreased ascorbate peroxidase activity, increased lipid peroxidation, altered membrane properties and reduced the development of non-photochemical quenching. 2017-06-01T10:11:20Z 2017-06-01T10:11:20Z 2002 NOV 2002 article Calatayud, A., Ramirez, J. W., Iglesias, D. J., Barreno, E. (2002). Effects of ozone on photosynthetic CO2 exchange, chlorophyll a fluorescence and antioxidant systems in lettuce leaves. Physiologia Plantarum, 116(3), 308-316. 0031-9317 http://hdl.handle.net/20.500.11939/4919 10.1034/j.1399-3054.2002.1160305.x en openAccess Impreso |
| spellingShingle | Calatayud, Ángeles Ramirez, J. W. Iglesias, Domingo J. Barreno, Eva Effects of ozone on photosynthetic CO2 exchange, chlorophyll a fluorescence and antioxidant systems in lettuce leaves |
| title | Effects of ozone on photosynthetic CO2 exchange, chlorophyll a fluorescence and antioxidant systems in lettuce leaves |
| title_full | Effects of ozone on photosynthetic CO2 exchange, chlorophyll a fluorescence and antioxidant systems in lettuce leaves |
| title_fullStr | Effects of ozone on photosynthetic CO2 exchange, chlorophyll a fluorescence and antioxidant systems in lettuce leaves |
| title_full_unstemmed | Effects of ozone on photosynthetic CO2 exchange, chlorophyll a fluorescence and antioxidant systems in lettuce leaves |
| title_short | Effects of ozone on photosynthetic CO2 exchange, chlorophyll a fluorescence and antioxidant systems in lettuce leaves |
| title_sort | effects of ozone on photosynthetic co2 exchange chlorophyll a fluorescence and antioxidant systems in lettuce leaves |
| url | http://hdl.handle.net/20.500.11939/4919 |
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