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| Content Provider | Springer Nature Link |
|---|---|
| Author | riega, Guillermo Cruz, Diego Santa Batlle, Alcira Tomaro, María Balestrasse, Karina |
| Copyright Year | 2011 |
| Abstract | The present study was undertaken to test the influence of exogenously applied jasmonic acid (JA) upon the oxidative stress exerted by Cd in soybean plants. It was found that depending on its concentration, JA can improve plant antioxidant responses against Cd. Pretreatment with 20 μM JA effectively ameliorated Cd-induced oxidative stress as indicated by the decrease in thiobarbituric reactive substance (TBARS) levels, enhancement of glutathione (GSH) content, and diminution of H2O2 and O2 − formation. On one hand, the activities of classic antioxidant enzymes such as catalase (CAT) and superoxide dismutase (SOD) were also augmented by JA treatment. This behavior was not observed in plants treated with Cd alone. On the other hand, 20 μM JA caused the enhancement of heme oxygenase (HO) activity (71% with respect to controls) and the amount of protein (60% with respect to controls). However, no gene induction was observed. Pretreatment with 20 μM JA before the addition of Cd provoked the highest values of HO activity and protein expression (138 and 122%, respectively). Once again, these enhancements were not correlated with transcript levels. Plants pretreated with Zn-protoporphyrin IX (ZnPPIX), a well-known irreversible HO-1 inhibitor, could not cope with the oxidative damage caused by Cd. This indicates that HO-1 is involved in the protection exerted by JA against the oxidative stress due to Cd treatment. |
| Starting Page | 79 |
| Ending Page | 89 |
| Page Count | 11 |
| File Format | |
| ISSN | 07217595 |
| Journal | Journal of Plant Growth Regulation |
| Volume Number | 31 |
| Issue Number | 1 |
| e-ISSN | 14358107 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2011-06-21 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Soybean plants Jasmonic acid Cadmium Antioxidant enzymes Heme oxygenase-1 Plant Anatomy/Development Plant Physiology Plant Sciences Agriculture |
| Content Type | Text |
| Resource Type | Article |
| Subject | Plant Science Agronomy and Crop Science |
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