Ectomycorrhizal Fungal Communities at Different Soil Depths in a Forest Dominated by Endangered <i>Pseudotsuga japonica</i>
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- Murata Masao
- Graduate School of Frontier Sciences, The University of Tokyo
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- Nara Kazuhide
- Graduate School of Frontier Sciences, The University of Tokyo
Bibliographic Information
- Other Title
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- 絶滅危惧種トガサワラの優占林分における土壌深度別の外生菌根菌群集
- ゼツメツ キグシュ トガサワラ ノ ユウセンリン ブン ニ オケル ドジョウ シンド ベツ ノ ソト セイキン コンキン グンシュウ
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Description
<p>To explore whether ectomycorrhizal (ECM) fungal communities differ by soil depth, we studied soil spore banks and ECM fungi colonizing the roots of Pseudotsuga japonica in a forest dominated by P. japonica in Sannokogawa, Nara Prefecture, Japan. Soil samples were collected at 25 points in the forest. At each sampling point, we obtained two soil blocks from each of four different depths (0-5, 5-10, 10-15, and 15-20 cm) . ECM fungi associated with roots in one of the two soil blocks were subjected to molecular identification. ECM spores in the other soil block were grown on seedling roots for 1 year (a bioassay experiment) , and the ECM fungi were then identified as described above. Both the frequency and species richness of ECM fungi on resident trees decreased with soil depth, while the frequency of spore bank was highest in the deepest soil layer. The observed soil spore bank communities were generally species-poor, being composed exclusively of Rhizopogon species specific for Pseudotsuga or Pinus. Fungal colonization increased bioassay seedling growth significantly. Although soil spore banks are the principal source of ECM infection after forest disturbances, this is the first report on the vertical distribution pattern of soil spore banks of ECM fungi. The results indicate that soil spore banks of ECM fungi can be used to conserve endangered P. japonica, which is regarded as a disturbance-dependent species.</p>
Journal
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- Journal of the Japanese Forest Society
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Journal of the Japanese Forest Society 99 (5), 195-201, 2017
THE JAPANESE FORESTRY SOCIETY
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Details 詳細情報について
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- CRID
- 1390001205228318976
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- NII Article ID
- 130006235475
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- NII Book ID
- AA12003078
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- ISSN
- 1882398X
- 13498509
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- NDL BIB ID
- 028648880
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed