Fungal symbiosis and heterochrony involved in gametophyte evolutions of primitive vascular plants, monilophytes.
| Project/Area Number |
15K07200
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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 |
Biodiversity/Systematics
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| Research Institution | Japan Women's University |
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Principal Investigator |
Imaichi Ryoko 日本女子大学, 理学部, 研究員 (60112752)
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| Co-Investigator(Kenkyū-buntansha) |
海老原 淳 独立行政法人国立科学博物館, 植物研究部, 研究主幹 (20435738)
辻田 有紀 佐賀大学, 農学部, 准教授 (80522523)
藤浪 理恵子 日本女子大学, 理学部, 研究員 (40580725)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | シダ植物 / 配偶体 / 菌根菌 / アーバスキュラー菌 / 共生 / 進化 / ハビタット / AM菌 / 形態 / 着生 |
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| Outline of Final Research Achievements |
Fern gametophytes are colonized with arbuscular mycorrhizal (AM) fungi. AM fungal colonization levels appear to be correlated with habitats, where gametophytes are growing; terrestrial gametophytes show high level of AM colonization, while epiphytic ones show low level. To clarify habitual relationships between fern gametophytes and AM fungi, we performed experimental co-cultivations of fern gametophytes and AM fungi. Fern gametophytes examined were classified to three groups: (1) AM infection rates show 100%, and infected gametophytes are much larger in size than uninfected gametophytes, (2) AM infection rates were 50-100% , but infected gametophytes are not significantly larger in size than uninfected gametophytes, and (3) AM infection rates show 0%. Gametophytes in the group (1) and (2) probably have high and relatively low nutritional dependence on AM fungi, respectively. In contrast, gametophytes in the group (3) rather may have a certain system to avoid fungal infection.
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Report
(4 results)
Research Products
(5 results)
