1. Главная
  2. Ресурсы
  3. Библиотечный поиск
Laminarin ElicitsDefense Responses inGrapevine and InducesProtectionAgainstBotrytiscinereaandPlasmoparaviticola Aziz AzizBenoît PoinssotXavier Daire2003 год

Laminarin Elicits Defense Responses in Grapevine and Induces Protection AgainstBotrytis cinereaandPlasmopara viticola
статья из журнала

Полный текстСтраница публикацииПубликация в OpenAlex
Аннотация: Grapevine (Vitis vinifera L.) is susceptible to many pathogens, such as Botrytis cinerea, Plasmopara viticola, Uncinula necator, and Eutypa lata. Phytochemicals are used intensively in vineyards to limit pathogen infections, but the appearance of pesticide-resistant pathogen strains and a desire to protect the environment require that alternative strategies be found. In the present study, the β-1,3-glucan laminarin derived from the brown algae Laminaria digitata was shown both to be an efficient elicitor of defense responses in grapevine cells and plants and to effectively reduce B. cinerea and P. viticola development on infected grapevine plants. Defense reactions elicited by laminarin in grapevine cells include calcium influx, alkalinization of the extracellular medium, an oxidative burst, activation of two mitogen-activated protein kinases, expression of 10 defense-related genes with different kinetics and intensities, increases in chitinase and β-1,3-glucanase activities, and the production of two phytoalexins (resveratrol and ε-viniferin). Several of these effects were checked and confirmed in whole plants. Laminarin did not induce cell death. When applied to grapevine plants, laminarin reduced infection by B. cinerea and P. viticola by approximately 55 and 75%, respectively. Our data describing a large set of defense reactions in grapevine indicate that the activation of defense responses using elicitors could be a valuable strategy to protect plants against pathogens.
Год издания: 2003
Авторы: Aziz Aziz, Benoît Poinssot, Xavier Daire, Marielle Adrian, Annie Bézier, Bernard Lambert, Jean-Marie Joubert, Alain Pugin
Издательство: American Phytopathological Society
Источник: Molecular Plant-Microbe Interactions
Ключевые слова: Plant-Microbe Interactions and Immunity, Fungal Biology and Applications, Mycorrhizal Fungi and Plant Interactions
Другие ссылки: Molecular Plant-Microbe Interactions (PDF)
Molecular Plant-Microbe Interactions (HTML)
HAL (Le Centre pour la Communication Scientifique Directe) (PDF)
HAL (Le Centre pour la Communication Scientifique Directe) (HTML)
HAL (Le Centre pour la Communication Scientifique Directe) (HTML)
PubMed (HTML)