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| Content Provider | Springer Nature Link |
|---|---|
| Author | Jung, W. J. Jin, Y. L. Park, R. D. Kim, K. Y. Lim, K. T. Kim, T. H. |
| Copyright Year | 2006 |
| Abstract | The activity of antioxidative enzymes after inoculation of pepper (Capsicum annuum L. Chungok) with a pathogen, Phytophthora capsici (P), the causal agent of Phytophtora blight and dual inoculation of pathogen and an antagonist, Paenibacillus illinoisensis KJA-424 (P+A), were measured and compared with that of non-inoculated (C) roots. Root mortality was significantly reduced by about 84% in P+A treatment compared with P treatment alone. When compared to the non-inoculated (C) roots, malondialdehyde (MDA) concentration gradually decreased by 52.4% in 7 days only in P-treated roots and hydrogen peroxide (H$_{2}$O$_{2}$) was not significantly affected by the treatment for 5 days but significantly decreased in the P+A-treated roots at day 7. P-treatment continuously induced peroxidase (POD) and superoxide dismutase (SOD), resulting in significant increases of 36.7% and 27.7% at day 7, respectively, compared to the control. In P+A-treated roots, the activities of POD and SOD also increased for 5 days but returned to the control level at day 7. Catalase activity fluctuated but again increased over the 7-day period following P+A inoculation. These results indicate that an antagonist P. illinoisensis KJA-424 alleviated root mortality and suppressed the elevated activities of POD and SOD in the root of pepper plant root caused by P.␣capsici infection. |
| Starting Page | 901 |
| Ending Page | 907 |
| Page Count | 7 |
| File Format | |
| ISSN | 09593993 |
| Journal | World Journal of Microbiology and Biotechnology |
| Volume Number | 22 |
| Issue Number | 9 |
| e-ISSN | 15730972 |
| Language | English |
| Publisher | Kluwer Academic Publishers |
| Publisher Date | 2006-02-25 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Catalase Paenibacillus illinoisensis pepper peroxidase Phytophthora capsici superoxide dismutase |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physiology Medicine Applied Microbiology and Biotechnology Biotechnology |
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