| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
|
|---|
| 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.
|
