2022 Fiscal Year Final Research Report
Factors that regulate colonization of endophytic fungi on leaves of woody plants
| Project/Area Number |
20K06119
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (C)
|
| Allocation Type | Multi-year Fund |
|---|
| Section | 一般 |
|---|
| Review Section |
Basic Section 40010:Forest science-related
|
|---|
| Research Institution | Obihiro University of Agriculture and Veterinary Medicine |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2020-04-01 – 2023-03-31
|
| Keywords | 樹木 / 内生菌 / 共生 / 宿主特異性 |
|---|
| Outline of Final Research Achievements |
In general, it is known that various endophytic fungi colonize the leaves and roots of most plants without showing disease symptoms. However, It is not well understood what benefits the presence of these endophytic fungi have for the host plants. In addition, the basic ecology of how endophytic fungi choose host plants and colonize them remains unclear. The purpose of this study was to clarify the relationships between plant taxa, symbiotic microorganisms specifically selected in their root systems, and endophytic fungi colonizing leaves. In this study, we compared the species composition of endophytic fungi in the living leaves of four tree species living in close proximity under the same environment. The results showed that taxonomically related tree species had similar endophytic fungal communities, while tree species with distant taxonomic groups had different endophytic fungal communities.
|
| Free Research Field |
微生物生態学
|
| Academic Significance and Societal Importance of the Research Achievements |
植物の根系の共生菌類では，宿主特異性や機能性がかなり判ってきており，農作物管理への応用や希少植物の保全に役立つ情報が蓄積されている．しかし，地上部に定着している共生菌類が，どのような傾向を持って宿主植物に定着しているのか，特に樹木では，これまでほとんど明らかではなかった．その理由は，極めて多様な内生菌類が検出されるものの，樹木の大きさ故に定着の傾向を，環境要因などを絞り込んで比較することが出来にくいためであった．今回，同じ環境下で同所的に定着している複数の異なる性質の矮性樹種を比較することが出来たため，地上部の内生菌類の特異性の傾向が，宿主の分類群にある程度依存することが明らかになった．
|
