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| Content Provider | Springer Nature Link |
|---|---|
| Author | Casagrande, Karen Falginella, Luigi Castellarin, Simone Diego Testolin, Raffaele Di Gaspero, Gabriele |
| Copyright Year | 2011 |
| Abstract | The Rpv3 locus determines the ability to operate an isolate-specific hypersensitive response (HR) against Plasmopara viticola in grapevines that carry a resistant Rpv3 + haplotype. Artificial infection was performed on leaf discs of Rpv3 + and Rpv3 − grapevines with two distinct isolates of the pathogen (avrRpv3 + and avrRpv3 −). The plant response, including the establishment of HR and changes in expression of 33 genes, was compared to the development of the pathogen. HR was induced exclusively in the Rpv3 + host upon inoculation with the avrRpv3 + isolate of the pathogen, which is assumed to use avrRpv3 + effectors that are recognised by/through the plant Rpv3 + gene product. The limitation imposed on pathogen growth was the result of inducible responses elicited by the Rpv3 +–avrRpv3 + interaction. This host reaction relied on transcriptional induction of the HR-associated gene HSR1 and salicylic acid-induced pathogenesis-related (PR) genes PR-1 and PR-2 during the initial 24–48 h post-inoculation. These events had no parallel in the Rpv3 − host or upon infection with the avrRpv3 − isolate. The emerging model for Rpv3-mediated defence, which is dependent upon race-specific recognition, associated with up-regulation of PR-1 and PR-2 genes, and enforced by localised HR-type necrosis, is compatible with the cascade of events initiated by the products of NB-LRR and LRR-kinase receptor-like genes, such as those residing in the Rpv3 locus. |
| Starting Page | 1097 |
| Ending Page | 1109 |
| Page Count | 13 |
| File Format | |
| ISSN | 00320935 |
| Journal | Planta |
| Volume Number | 234 |
| Issue Number | 6 |
| e-ISSN | 14322048 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2011-07-07 |
| Publisher Place | Berlin/Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Pathogenesis-related proteins Signal transduction Vitis vinifera Plasmopara viticola Forestry Ecology Plant Sciences Agriculture |
| Content Type | Text |
| Resource Type | Article |
| Subject | Genetics Plant Science |
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