Functional analysis of a secretory peptide SAR8.2 on induced disease resistance of Solanaceae plants
| Project/Area Number |
26292024
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Partial Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Plant protection science
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| Research Institution | Nagoya University |
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Principal Investigator |
Takemoto Daigo 名古屋大学, 生命農学研究科, 准教授 (30456587)
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| Co-Investigator(Kenkyū-buntansha) |
近藤 竜彦 名古屋大学, 生命農学研究科, 講師 (30362289)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
Fiscal Year 2016: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2014: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
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| Keywords | 病害抵抗性 / ジャガイモ疫病菌 / ナス科植物 / 分泌ペプチド / ベンサミアナ / 分泌タンパク質 / ベンサミアナタバコ / 病害抵抗性機構 / 植物病理学 / 病害抵抗性誘導 |
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| Outline of Final Research Achievements |
Nicotiana benthamiana is resistant to the potato blight pathogen, Phytophthora infestans. Screening using virus-induced gene silencing identified NbSAR8.2m, a secretory peptide, as an essential factor for the resistance. NbSAR8.2m-silenced plant is highly susceptible to P. infestans, leading systemic infection of the pathogen. In contrast, silencing of NbSAR8.2m showed no effect on the resistance to other pathogens, indicating that NbSAR8.2m is specifically involved in the resistance to P. infestans. While induction of cell death is impaired in NbSAR8.2m-silenced plants during the infection of P. infestans. Production of reactive oxygen species (ROS) was suppressed in SAR8.2m-silenced plants during the infection of P. infestans, but ROS production induced by elicitor was comparable between control and NbSAR8.2m-silenced plants. These results suggested that NbSAR8.2m may suppress the effectors activity of P. infestans.
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Report
(4 results)
Research Products
(24 results)
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[Presentation] Analysis of promoter region of a Nicotiana benthamiana ABC transporter gene, NbABCG2a, which is involved in pre- and post-invasion defense against Phytophthora infestans.2016
Author(s)
Rin, S., Mizuno, Y., Fushimi, M., Ojika, M., Sato, I., Chiba, S., Kawakita, K. and Takemoto, D.
Organizer
平成28年度 日本植物病理学会関西部会
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