| Project/Area Number |
12640614
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
生態
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| Research Institution | Shinshu University |
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Principal Investigator |
ITINO Takao Shinshu Univ., Faculty of Science, Associate Professor, 理学部, 助教授 (20176291)
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| Project Period (FY) |
2000 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
|
| Budget Amount *help |
¥3,600,000 (Direct Cost: ¥3,600,000)
Fiscal Year 2001: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 2000: ¥2,200,000 (Direct Cost: ¥2,200,000)
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| Keywords | ants / symbiosis / coevolution / ant-plants / molecular phylogeny / mitochondrial DNA / coccids / cospeciation / 共生 / シトコンドリアDNA |
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| Research Abstract |
The Asian ant-plant association between Crematogaster ants and Macaranga plants was highly species-specific, and the molecular phylogeny of the ants parallels the plant phylogeny reflecting the history of cospeciation. Interspecific comparison of leaf damage and enemy fauna of nine coexisting Macaranga species supported that the plants differ in their types of non-biotic ( chemical/structural ) defense. Despite these variations in chemical/structural defense, ant-colonized plants were generally well defended by ants against most kinds of enemies. This, together with the differences in defensive behavior of the ant species, suggests that the individual host-specific ant mutualists are well adapted to deter the specific enemies, which can potentially overcome the chemical/structural defense of the host plants.
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