دورية أكاديمية
Are Grapevine Stomata Involved in the Elicitor-Induced Protection Against Downy Mildew?
| العنوان: | Are Grapevine Stomata Involved in the Elicitor-Induced Protection Against Downy Mildew? |
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| المؤلفون: | Mathilde Allègre, Marie-Claire Héloir, Sophie Trouvelot, Xavier Daire, Alain Pugin, D. Wendehenne, Marielle Adrian |
| المصدر: | Molecular Plant-Microbe Interactions, Vol 22, Iss 8, Pp 977-986 (2009) |
| بيانات النشر: | The American Phytopathological Society, 2009. |
| سنة النشر: | 2009 |
| المجموعة: | LCC:Microbiology LCC:Botany |
| مصطلحات موضوعية: | Microbiology, QR1-502, Botany, QK1-989 |
| الوصف: | Stomata, natural pores bordered by guard cells, regulate transpiration and gas exchanges between plant leaves and the atmosphere. These natural openings also constitute a way of penetration for microorganisms. In plants, the perception of potentially pathogenic microorganisms or elicitors of defense reactions induces a cascade of events, including H2O2 production, that allows the activation of defense genes, leading to defense reactions. Similar signaling events occur in guard cells in response to the perception of abscisic acid (ABA), leading to stomatal closure. Moreover, few elicitors were reported to induce stomatal closure in Arabidopsis and Vicia faba leaves. Because responses to ABA and elicitors share common signaling events, it led us to question whether stomatal movements and H2O2 production in guard cells could play a key role in elicitor-induced protection against pathogens that use stomata for infection. This study was performed using the grapevine–Plasmopara viticola pathosystem. Using epidermal peels, we showed that, as for ABA, the elicitor-induced stomatal closure is mediated by reactive oxygen species (ROS) production in guard cells. In plants, we observed that the protection against downy mildew induced by some elicitors is probably not due only to effects on stomatal movements or to a guard-cell-specific activation of ROS production. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1943-7706 0894-0282 |
| العلاقة: | https://doaj.org/toc/0894-0282Test; https://doaj.org/toc/1943-7706Test |
| DOI: | 10.1094/MPMI-22-8-0977 |
| الوصول الحر: | https://doaj.org/article/2a866a8027af476db4ed289d9c7059f7Test |
| رقم الانضمام: | edsdoj.2a866a8027af476db4ed289d9c7059f7 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 19437706 08940282 |
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| DOI: | 10.1094/MPMI-22-8-0977 |