2016 Fiscal Year Final Research Report
Elucidation of the mechanism leading to horizontal pollen transmission of raspberry bushy dwarf virus
| Project/Area Number |
26450051
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | 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 | Iwate University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 花粉伝染 / 花粉による水平伝染 / 花粉による垂直伝染 / ラズベリー黄化ウイルス / 花粉管 / 胚のう / 柱頭 / リンドウ子房輪紋ウイルス |
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| Outline of Final Research Achievements |
Mechanisms by which pollination with virus-contaminated pollen grains cause systemic viral infection to healthy plants have been unknown since 1918, when the possibility that viruses might be spread by pollen from plant to plant was first raised. This study has revealed that horizontal pollen transmission of raspberry bushy dwarf virus (RBDV) can result in infection of plants in families different from those of the pollen donor. In particular, RBDV can be horizontally transmitted to healthy plants by penetration of their stigmas by germinating pollen tubes originating from RBDV-infected plants. In addition, the study has also shown that RBDV-infected pollen tubes can introduce RBDV directly into embryo sacs during fertilization, and that this results in virus infection of seeds from the fertilized flowers.
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| Free Research Field |
植物病理学
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