Molecular mechanisms on plant viral synergism mediated by salicylic acid glucosyltransferase
Project/Area Number |
18K05655
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 39040:Plant protection science-related
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Research Institution | University of Miyazaki |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
増田 税 北海道大学, 農学研究院, 教授 (60281854)
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Project Period (FY) |
2018-04-01 – 2021-03-31
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Project Status |
Completed (Fiscal Year 2020)
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Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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Keywords | plant virus / synergy / SAGT / cucumber mosaic virus / turnip mosaic virus / Plant virus / Synergy / シナジー / CMV / TuMV / SA / 2b / サリチル酸配糖化酵素遺伝子 / サリチル酸 / サリチル酸配糖化酵素 / キュウリモザイクウイルス / カブモザイクウイルス |
Outline of Final Research Achievements |
Transcript levels of the salicylic acid glucosyltransferase (SAGT) gene were significantly lower in ASM (BTH)-treated Nicotiana benthamiana plants than in SA-treated N. benthamiana and water-treated control plants. ASM treatment also significantly suppressed systemic symptoms after infection with cucumber mosaic virus (CMV). The results indicated that SAGT has an important role in the SA-mediated host defense responses. In addition, SAGT transcript levels under co-infection with CMV and turnip mosaic virus (TuMV) in N. benthamiana showed significant difference in comparison to those in single infection with CMV, TuMV, and non-inoculated healthy control. These results together indicate that SAGT has a role in plant viral synergism between CMV and TuMV.
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Academic Significance and Societal Importance of the Research Achievements |
本研究では植物ウイルス間の病原性相乗効果(シナジー)について追究した。シナジーは植物ウイルスが同じ個体に重複感染することで病徴の劇症化をもたらす減少であり、農作物のウイルス感染による被害を助長している。しかしながら、植物ウイルス間のシナジー現象はその詳細が明らかになっていないため、今回その分子機構の解明を目的とした。植物ウイルスの抵抗性誘導には植物ホルモンの1種であるサリチル酸(SA)の蓄積が重要である。そこで、本研究ではSAを非活性状態にするSAGT遺伝子の機能について注目した。SAGTの発現状況を解析した結果、SAGTの発現変動がシナジー現象に関与することが示唆された。
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Report
(4 results)
Research Products
(8 results)
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[Journal Article] Role of salicylic acid glucosyltransferase in balancing growth and defence for optimum plant fitness.2020
Author(s)
Kobayashi, Y., Fukuzawa, N., Hyodo, A., Kim, H., Mashiyama, S., Ogihara, T., Yoshioka, H., Matsuura, H., Masuta, C., Matsumura, T. and Takeshita, M.
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Journal Title
Molecular Plant Pathology
Volume: 21
Issue: 3
Pages: 429-442
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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