| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
Various bacterial strains were isolated from fruiting bodies of Rhizopogon roseolus. Some bacterial strains were found to stimulate mycelial growth in R. roseolus. BLAST analysis revealed that these bacterial strains belonged to the genera Paraburkholderia, Caballeronia, Janthinobacterium, Novosphingobium, and Rhodobacter. A comparative study using several ectomycorrhizal mushroom strains revealed that the bacterial strain from the fruiting body of R. roseolus stimulated mycelial growth of ectomycorrhizal mushrooms collected from a Pinus thunbergii forest, but not in those collected from another forest, indicating a specific interaction between the bacterial strain and ectomycorrhizal mushroom species. An in vitro inoculation experiment using P. thunbergii seedlings indicated that post-bacterial inoculation with GIB024 or GIB028 was effective in increasing mycorrhization of R. roseolus.
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