2011 Fiscal Year Final Research Report
Structure and role of a novel aluminum-binding compound in Eucalyptus camaldulensis
| Project/Area Number |
21780158
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Forest science
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| Research Institution | Forestry and Forest Products Research Institute |
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Principal Investigator |
TAHARA Ko 独立行政法人森林総合研究所, 生物工学研究領域, 主任研究員 (70445740)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 酸性土壌 / アルミニウム耐性機構 / フトモモ科樹木 / Eucalyptus camaldulensis / ポリフェノール / 加水分解性タンニン / Oenothein B / ストレス応答 |
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| Research Abstract |
To elucidate the mechanism of the high aluminum(Al) resistance of a Myrtaceae tree, Eucalyptus camaldulensis, we investigated the structure and characteristics of a novel Al-binding compound in this species. The structure of the Al-binding compound isolated from E. camaldulensis was identified as a hydrolyzable tannin, oenothein B. This compound(1) had a high Al-binding ability,(2) was not detected in Al-sensitive tree species, and(3) was increased in its content in root of E. camaldulensis by Al treatment. These results suggest that complex formation between oenothein B and Al detoxifies Al in root of E. camaldulensis, which contributes to its high Al resistance.
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