Electrical Stimulation Enhances Plant Defense Response in Grapevine through Salicylic Acid-Dependent Defense Pathway
| Autor: | Mori Daisuke, Yoshinao Aoki, Ayane Moriyama, Hiroshi Kanamaru, Masumura Yoshiyuki, Shunji Suzuki |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
0301 basic medicine salicylic acid Environmental pollution Stimulation Plant Science 01 natural sciences Article 03 medical and health sciences chemistry.chemical_compound Arabidopsis Plant defense against herbivory plant defense response electrical stimulation Ecology Evolution Behavior and Systematics Ecology biology fungi Botany food and beverages biology.organism_classification Elicitor grapevine Fungicide Horticulture β-1 3-glucanase 030104 developmental biology chemistry QK1-989 Downy mildew Salicylic acid 010606 plant biology & botany |
| Zdroj: | Plants Volume 10 Issue 7 Plants, Vol 10, Iss 1316, p 1316 (2021) |
| ISSN: | 2223-7747 |
| Popis: | Concern over environmental pollution generated by chemical fungicides has led to the introduction of alternative pest management strategies to chemical fungicide application. One of those strategies is the induction of plant defense response by an abiotic elicitor. In the present study, field-grown grapevines were subjected to electrical stimulation using a solar panel from two weeks before flowering to harvest in the 2016 and 2020 growing seasons. In both years, electrical stimulation decreased the incidence of gray mold and/or ripe rot on bunches and downy mildew on leaves of the field-grown grapevine. Transcription of a gene encoding β-1,3-glucanase but not class IV chitinase in leaves of potted grapevine seedlings was upregulated 20 days after electrical stimulation, suggesting that electrical stimulation acts as an abiotic elicitor of plant defense response to fungal diseases. The gene expression of PR1 but not PDF1.2 was upregulated in Arabidopsis plants subjected to electrical stimulation. On the other hand, PR1 gene expression was not induced in salicylic acid (SA)-insensitive Arabidopsis mutant npr1-5 subjected to electrical stimulation. Taken together, electrical stimulation is responsible for plant defense response through the SA-dependent defense pathway. These findings would help us develop a novel and innovative practical technique that uses electrical stimulation in integrated pest management. |
| Databáze: | OpenAIRE |
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