Enzimatic scavenging of reactive oxygen species en Lycopersicon esculentun Mill. Cell suspension cultures elicited with oligogalacturonides
Oxidative stress induced by oligogalacturonides in Lycopersicon esculentum MilI. cv. Rio grande cultured cells was investigated. The treatment triggered a rapid synthesis ofH20 2, which was detected within the first 2 hours in the extracellular medium, reaching a 4.5-fold increment after 6 h. There was a sequential and concerted activity ofthe antioxidant systems, in which at the beginning, the activity of superoxide dismutase increased to induce a hyper-oxidative cellular state. Mterwards, the activities of H20 2-consuming enzymes, ascorbate peroxidase, catalase and guaiacol peroxidases, increased to return the cells to the same redox levels of those not receiving the treatment.
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| Main Authors: | , , |
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| Format: | info:eu-repo/semantics/article biblioteca |
| Language: | eng |
| Subjects: | info:eu-repo/classification/Autores/OXIDATIVE STRESS, info:eu-repo/classification/Autores/OLIGOGALACTURONIDES, info:eu-repo/classification/Autores/ROS SCAVENGING ENZYMES, info:eu-repo/classification/Autores/TOMATO-CULTURED CELLS, info:eu-repo/classification/cti/2, info:eu-repo/classification/cti/24, |
| Online Access: | http://cicy.repositorioinstitucional.mx/jspui/handle/1003/932 |
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| Summary: | Oxidative stress induced by oligogalacturonides in Lycopersicon esculentum MilI. cv. Rio grande cultured cells was investigated. The treatment triggered a rapid synthesis ofH20 2, which was detected within the first 2 hours in the extracellular medium, reaching a 4.5-fold increment after 6 h. There was a sequential and concerted activity ofthe antioxidant systems, in which at the beginning, the activity of superoxide dismutase increased to induce a hyper-oxidative cellular state. Mterwards, the activities of H20 2-consuming enzymes, ascorbate peroxidase, catalase and guaiacol peroxidases, increased to return the cells to the same redox levels of those not receiving the treatment. |
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