2013 Fiscal Year Final Research Report
Population density of Lophodermium pinastri in living and fallen needles - Population analysis of a tree pathogen.
| Project/Area Number |
21580185
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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 |
Forest science
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| Research Institution | Kagoshima University |
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Principal Investigator |
HATA Kunihiko 鹿児島大学, 農学部, 准教授 (00325771)
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| Project Period (FY) |
2009-04-01 – 2014-03-31
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| Keywords | Lophodermium pinastri / マツ葉ふるい病菌 / 生息密度 / 対峙培養 / 体細胞不和合性 / 季節変動 / 地域変動 / 種間相互作用 |
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| Research Abstract |
I examined what are proper indices of population density of Lophodermium pinastri. As a result, this fungus was proved to possess clone-level somatic incompatibility, which means that the numbers of colonies in isolation can nearly be regarded as the numbers of clones. Based on this, seasonal and stand-level changes in the population densities of this fungus were examined. Such changes of this fungus were found to be very unstable, even the season of spore dispersal and infection was different. One of the reasons of this instability was that this fungus was strongly affected by the interaction with other fungi inhabiting in the same needles.
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