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Organization for Promotion of Research and Industry-Academic Regional Collaboration Institute for Tenure Track Promotion |
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Associate Professor |
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External Link |
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Related SDGs |
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TOKUMOTO Yuji
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Research Areas 【 display / non-display 】
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Environmental Science/Agriculture Science / Conservation of biological resources
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Life Science / Ecology and environment
Papers 【 display / non-display 】
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Protection of understory vegetation by deer exclosure fences prevent the reduction of beech growth due to soil erosion Reviewed
Hayato Abe, Dongchuan Fu, Tadamichi Sato, Yuji Tokumoto, Fujio Hyodo, Ayumi Katayama
Journal of Environmental Management 371 123146 2024.11
Language：English Publishing type：Research paper (scientific journal)
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Effects of deer-exclusion fences on soil microbial communities through understory environmental changes in a cool temperate deciduous forest in Southern Japan Reviewed
Yuji Tokumoto, Yuki Sakurai, Hayato Abe, Ayumi Katayama
Forest Ecology and Management 564 121993 - 121993 2024.7
Publishing type：Research paper (scientific journal) Publisher：Elsevier BV
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Yuji Tokumoto, Ayumi Katayama
PLOS ONE 19 ( 1 ) e0296692 - e0296692 2024
Language：English Publishing type：Research paper (scientific journal)
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Chen Fu-Chia, Katayama Ayumi, Oyamada Mimori, Tsuyama Taku, Kijidani Yoshio, Tokumoto Yuji
Journal of Forest Research 29 ( 2 ) 89 - 102 2023.10
Authorship：Last author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Informa UK Limited
Soil erosion, which involves the degradation of the physical and chemical properties of soil, is a major threat to the soil environment. Although the effects of soil erosion on the physical or chemical properties of forests have been studied, little has been reported on the soil microbial community, which is likely to affect forest ecosystems. This study aimed to elucidate how the microbiome changed with the soil environment accompanying soil erosion in cool temperate mixed forests in Southern Japan, where soil erosion has been accelerated by the increased population of sika deer. We investigated the soil microbial communities of the different soil erosion intensities at three forest sites. In prokaryotic communities, diversity indices were increased with the sum of the height of exposed roots (SUMH), an index of soil erosion. In fungal communities, the relative abundances of plant pathogenic and wood saprotroph fungi were increased as SUMH increased and those of symbiotrophs and ectomycorrhizal fungi were increased with humus organic matter content, suggesting that the difficulties in establishing plants would be increased as soil erosion progressed because of the changes in the composition and function of fungal communities in eroded areas. Moreover, soil fungal communities had a more complex co-occurrence network than that of prokaryote, suggesting that the effects of soil erosion on fungal network is smaller than those on bacterial network. Changes in the soil environment induced by soil erosion altered the microbiomes in the deeper layers of the soil and had different effect on prokaryotes and fungi.
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Distribution of Plant Hormones and Their Precursors in Cambial Region Tissues of Quercus myrsinifolia and Castanopsis cuspidata var.sieboldii after Bending Stems or Applying Ethylene precursor Reviewed
Yoshio Kijidani, Taku Tsuyama, Yuji Tokumoto
Forests 14 ( 4 ) 813 - 813 2023.4
Publishing type：Research paper (scientific journal) Publisher：{MDPI} {AG}
DOI： 10.3390/f14040813
MISC 【 display / non-display 】
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九州山地のブナ林における土壌侵食による葉の生理学的特性への影響
東若菜, 小切壮仁, 杉本廉, 櫻井優樹, 徳本雄史, 阿部隼人, 久米朋宣, 片山歩美
日本森林学会大会学術講演集 135th 2024
Publishing type：Rapid communication, short report, research note, etc. (scientific journal)
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シカ排除柵の内外におけるブナ成木の肥大成長量の比較
阿部隼人, 付東川, 佐藤忠道, 徳本雄史, 櫻井優樹, 兵藤不二夫, 片山歩美
日本森林学会大会学術講演集 135th 2024
Publishing type：Rapid communication, short report, research note, etc. (scientific journal)
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九州山地における防鹿柵内外でのブナ樹冠下環境と土壌微生物相の違い
櫻井優樹, 片山歩美, 阿部隼人, 津山濯, 徳本雄史
日本森林学会大会学術講演集 134th 2023
Publishing type：Rapid communication, short report, research note, etc. (scientific journal)
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白色腐朽菌Phlebia sp.MG-60株におけるMAPキナーゼHOG1の過剰発現はエタノール発酵と菌糸成長を抑制する
元田多一, 陳富嘉, 津山濯, 徳本雄史, 亀井一郎, 雉子谷佳男
日本木材学会大会研究発表要旨集(完全版)(CD-ROM) 73rd 2023
Publishing type：Rapid communication, short report, research note, etc. (scientific journal)
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Effects of Pieris japonica (Ericaceae) dominance on the soil environments and microbiomes in cool temperate forest, Kyushu
徳本雄史, 片山歩美
日本生態学会大会講演要旨(Web) 70th 2023
Publishing type：Rapid communication, short report, research note, etc. (scientific journal)
Grant-in-Aid for Scientific Research 【 display / non-display 】
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下層植生消失によるブナの水・養分ストレスが土壌生物多様性と生態系機能に与える影響
Grant number：23K25047 2024.04 - 2026.03
独立行政法人日本学術振興会 科学研究費基金 基盤研究(B)
Authorship：Coinvestigator(s)
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Impact of beech water and nutrient stress induced by understory degradation on soil biodiversity and ecosystem function
Grant number：22H03793 2022.04 - 2026.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (B) Grant-in-Aid for Scientific Research (B)
Authorship：Coinvestigator(s)
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Elucidation of ecological function of pioneer tree species and interspecific interaction with late succession tree species for vegetation restoration in Southeast Asia
Grant number：22K05692 2022.04 - 2026.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C) Grant-in-Aid for Scientific Research (C)
Authorship：Principal investigator
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Discrimination and broad-scale mapping of evergreen broad-leaved trees in Japan and Borneo by satellite remote-sensing with high frequency and high spatial resolution
Grant number：22K12352 2022.04 - 2026.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Scientific Research (C) Grant-in-Aid for Scientific Research (C)
Authorship：Coinvestigator(s)
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Community-wide phenological study by transcriptome analysis in Southeast Asian tropical plant
Grant number：19K15875 2019.04 - 2022.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists Grant-in-Aid for Early-Career Scientists
Tokumoto Yuji
Authorship：Principal investigator
This study aimed to clarifying the species-level and community-level phenology phenomena from the relationship among phenology, meteorological data, and expressed genes in the trees of Dipterocarpaceae, Leguminosae, and Ebenaceae families in Southeast Asian tropical forest. During the study period, precipitation decreased, community-wide synchronous flowering occurred, and many of the targeted individuals flowered. The expressed genes analysis revealed that the expression levels of either drought response genes and cold response genes or both were changed before flowering. This suggests that the two flowering factors, drought, and low temperature, which have been discussed as the triggers for synchronized flowering, have been confirmed from the level of expressed genes in multiple canopy tree species. This study suggested that many of the canopy trees might respond to the subtle changes in weather conditions followed by causing the phenological phenomena.