Updated on 2026/06/08

写真a

 
NEZU Ikumi
 
Organization
School of Agriculture Department of Forest Science Assistant Professor
Title
Assistant Professor

Degree

  • 農学 ( 2024.3   東京農工大学 )

Research Interests

  • Wood anatomy

  • Wood quality

Research Areas

  • Life Science / Wood science

Education

  • Tokyo University of Agriculture and Technology   連合農学研究科

    2021.4 - 2024.3

Research History

  • Utsunomiya University   Assistant Professor

    2025.6 - Present

  • Utsunomiya University   農学部

    2024.4 - 2025.5

Professional Memberships

  • 日本森林学会

    2024.10 - Present

  • 日本木材加工技術協会

    2021.9 - Present

  • 日本木材学会

    2018.12 - Present

  • 森林遺伝育種学会

    2018.10 - Present

  • 日本熱帯生態学会

    2018.5 - Present

 

Papers

  • Among-family variations of chemical and Kraft-pulp properties in the heartwood of the third-generation Acacia mangium in Indonesia Reviewed International coauthorship

    Masendra, Nezu I, Hidayati F, Nirsatmanto A, Sunarti S, Surip, Kartikaningtyas D, Ohshima J, Yokota S, Ishiguri F

    Wood Science and Technology   60   2026.1

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    Publishing type:Research paper (scientific journal)  

  • Quality of sawn timber produced from young Paulownia trees planted in Tochigi, Japan Reviewed

    Nezu I, Taguchi K, Wachi Y, Yokoyama H, Nihei M, Kato S, Otani N, Ohshima J, Yokota S, Ishiguri F

    Wood Material Science and Engineering   2026.1

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1080/17480272.2025.2545895

  • Quantity and quality of stem wood concerning biofuel production from young Paulownia species planted in Tochigi, Japan

    Nezu I, Sawada N, Nihei M, Kato S, Aizawa M, Aruga K, Ohshima J, Yokota S, Ishiguri F

    2026.1

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    Authorship:Lead author, Corresponding author   Publishing type:Research paper (scientific journal)  

  • Among-site differences in wood properties and decay resistance of wood in Pinus sylvestris naturally growing in Mongolia Reviewed International coauthorship

    Ganbaatar T, Nezu I, Masendra, Aiso H, Mookhor K, Erdene-Ochir T, Tumenjargal B, Chultem G, Ohshima J, Yokota S, Ishiguri F

    Journal of Wood Science   71   2025.12

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Proteome analysis of the specific proteins from Japanese birch callus infected with a canker-rot fungus Inonotus obliquus strain IO-U1 (NBRC 113406) Reviewed International coauthorship

    Agnestisia R, Chino R, Nezu I, Ishiguri F, Tohge T, Yokota S

    Forest Pathology   55 ( 6 )   2025.12

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1111/efp.70051

  • Effects on radial growth rate on basic density and compressive strength in 10-year-old Swietenia macrophylla planted in South Kalimantan, Indonesia Reviewed International coauthorship

    Frismanti AAAR, Istikowati WT, Nezu I, Ohshima J, Yokota S, Ishiguri F

    Forest Science and Technology   21 ( 4 )   422 - 429   2025.12

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Decay resistance and chemical properties of the heartwood in Larix sibirica naturally growing in Mongolia Reviewed International coauthorship

    Ganbaatar T, Ishiguri F, Nezu I, Masendra, Tumenjargal B, Tumurpurev N, Baasan B, Chultem G, Ohshima J, Yokota S

    Holzforschung   79 ( 19 )   497 - 506   2025.10

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s00107-002-0314-0

  • Chemical and kraft pulp properties of culms from three bamboo species naturally growing in Lombok Island, Indonesia Reviewed International coauthorship

    Rini DS, Nezu I, Ngadianto A, Irawati D, Ohshima J, Yokota S, Ishiguri F

    Cellulose Chemistry and Technology   59 ( 5.6 )   697 - 706   2025.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.35812/CelluloseChemTechnol.2025.59.60

  • Effects of radial growth rate on wood properties and lumber qualities in plantation‑grown Picea koyamae Reviewed

    Ishiguri F, Nezu I, Takahashi Y, Murzabyek S, Yamashita K, Katsuki T, Otsuka K, Ohshima J, Yokota S

    Journal of Wood Science   71   49   2025.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1186/s10086-025-02222-z

  • Bending and compressive properties of glued-laminated timber composed of Japanese white birch wood using casein adhesive Reviewed

    Erdene-Ochir T, Ishiguri F, Nezu I, Watanabe K, Ngadianto A, Ohshima J, Yokota S

    Wood Material Science and Engineering   20 ( 3 )   697 - 704   2025.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1080/17480272.2024.2374384

  • Database for radial variations of anatomical characteristics and wood properties in tropical trees (DaRV-tropics) Reviewed

    Aiso H, Nezu I, Ishiguri F

    Tropics   34 ( 1 )   31 - 38   2025.6

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.3759/tropics.MS24-06

  • Evaluation of differences in radial variations of wood properties among families for producing the next-generation Acacia mangium in Indonesia Reviewed International coauthorship

    Yokoyama H, Masendra, Nezu I, Hidayati F, Irawati D, Ngadianto A, Nirsatmanto A, Sunarti S, Surip, Kartikaningtyas D, Ohshima J, Yokota S, Ishiguri F

    Silvae Genetica   74 ( 1 )   20 - 30   2025.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2478/sg-2025-0003

  • Growth characteristics and stress-wave velocity of standing trees of three Populus tree species in Mongolia Reviewed International coauthorship

    Enkhbayar B, Dagdan T, Khurelbaatar B, Erdene-Ochir T, Tumenjargal B, Nezu I, Ohshima J, Yokota S, Ishiguri F

    Forest Science and Technology   21 ( 1 )   15 - 20   2025.3

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Growth characteristics, stress-wave velocity of stems, and radial variations of wood properties and anatomical characteristics in six-year-old Rubroshorea leprosula and R. macrophylla planted in Central Kalimantan, Indonesia Reviewed International coauthorship

    Aiso H, Nezu I, Hidayati F, Irawati D, Wahyudi I, Ohkubo T, Ishiguri F

    Journal of Wood Science   71   7   2025.3

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Among-family variations in growth traits, the stress-wave velocity of stems, and log characteristics of the first-generation Neolamarckia macrophylla (Roxb.) Bosser in Indonesia Reviewed

    Dharmawati ULD, Nezu I, Ishiguri F, Hidayati F, Ngadianto A, Pertiwi YAB, Nirsatmanto A, Sunarti S, Irawati D, Takahashi Y, Yokoyama H, Ohshima J, Yok

    Tropics   33 ( 2 )   119 - 128   2024.12

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Among-family variations of wood-color parameters, decay resistance, total phenol, and total flavanol content in the heartwood of the third-generation Acacia mangium in Indonesia Reviewed International coauthorship

    Masendra, Nezu I, Ishiguri F, Hidayati F, Nirsatmanto A, Sunarti S, Surip, Kartikaningtyas D, Ohshima J, Yokota S

    Holzforschung   78 ( 11.12 )   587 - 598   2024.11

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Seed source selection for improvement of growth and wood traits in 10-year-old Fraxinus griffithii C. B. Clarke trees planted in northern highlands of Thailand Reviewed International coauthorship

    Wongwachimaphet P, Neimsuwan T, Ishiguri F, Nezu I, Diloksumpun S

    Forests   15 ( 11 )   1974   2024.11

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Evaluation of relationships between cambial age-related changes in radial growth increments of stems and wood properties in Paulownia tomentosa trees grown in Fukushima, Japan Reviewed

    Nezu I, Ishiguri F, Ohshima J, Yokota S

    Wood and Fiber Science   56 ( 3 )   113 - 126   2024.10

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • Changes in wood quality of Betula ermanii logs by heating treatment Reviewed

    Altangerel S, Nezu I, Ohshima J, Yokota S, Ishiguri F

    Wood Research   2024.9

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Preliminary evaluation of bending properties in dimension lumber of Paulownia tomentosa as a fast-growing tree species in Japan Reviewed

    Ishiguri F, Nezu I, Nihei M, Kato S, Otani N, Ohshima J, Yokota S

    Forest Products Journal   74 ( 2 )   159 - 164   2024.3

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  • Modeling of radial growth curves and radial variation of basic density in Chamaecyparis obtusa planted in two progeny test sites Reviewed

    Takahashi Y, Ishiguri F, Matsushita M, Nezu I, Ohshima J, Yokota S, Tamura A, Tsubomura M, Takahashi M

    Journal of Wood Science   70   2   2024.1

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  • Evaluation of xylem maturation manner for solid wood production from Eucalyptus camaldulensis planted in Thailand Reviewed International coauthorship

    Nezu I, Ishiguri F, Aiso H, Diloksumpun S, Ohshima J, Yokota S

    Tropics   32 ( 2 )   49 - 63   2023.12

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • 絶滅危惧種キリノミタケの木材腐朽特性と原木栽培による子実体形成 Reviewed

    牧野 純,中束賢譲,根津郁実,石栗 太,中澤 武

    日本菌学会会報   62 ( 2 )   41 - 55   2023.11

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    Language:Japanese   Publishing type:Research paper (scientific journal)  

  • Variations of growth and wood traits in standing trees of the third-generation Acacia mangium families in Indonesia Reviewed

    Masendra, Nezu I, Ishiguri F, Hidayati F, Nirsatmanto A, Sunarti S, Surip, Kartikaningtyas D, Takashima Y, Takahashi Y,Ohshima J, Yokota S

    Silvae Genetica   72 ( 1 )   150 - 162   2023.10

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    Language:English   Publishing type:Research paper (scientific journal)  

  • The effect of laminate configuration on the mechanical properties of model glued laminated timber composed of single and mixed tropical fast-growing tree species Reviewed International coauthorship

    Ngadiantoa A, Ishiguria F, Nezu I, Irawati D, Ohshima J, Yokota S

    Wood Material Science and Engineering   18 ( 5 )   1676 - 1684   2023.9

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Clarifying the decay process by Inonotus obliquus in Japanese white birch naturally grown in Nikko, Japan Reviewed

    Nezu I, Nueraihaimaiti N, Rini DS, Ishiguri F, Sato T, Mitsukuni K, Suzuki T, Habu N, Ohshima J, Yokota S

    Holzforschung   77 ( 8 )   585 - 597   2023.8

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • Sawn-timber quality of six half-sib families of hinoki cypress (Chamaecyparis obtusa (Siebold et Zucc.) Endl.) Reviewed International coauthorship

    Takahashi Y, Ishiguri F, Nezu I, Endo R, Kobayashi S, Tanabe J, Otsuka K, Ohshima J, Yokota S

    Wood Material Science and Engineering   18 ( 4 )   1163 - 1170   2023.8

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  • Radial growth rate does not affect radial variation of latewood tracheid length in aged trees of Thujopsis dolabrata var. hondae Reviewed

    Nezu I, Ishiguri F, Ohshima J, Yokota S

    IAWA Journal   44 ( 2 )   127 - 139   2023.6

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  • Lignin-degrading enzymes from a pathogenic canker-rot fungus Inonotus obliquus strain IO-B2 Reviewed

    Agnestisia R, Suzuki T, Ono A, Nakamura L, Nezu I, Tanaka Y, Aiso H, Ishiguri F, Yokota S

    AMB Express   13   59   2023.6

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Pectin decomposition at the early stage of brown-rot decay by Fomitopsis palustris Reviewed

    Tanaka Y, Nezu I, Aiso H, Fujie T, Konno N, Suzuki T, Ishiguri F, Habu N

    Bioscience, Biotechnology, and Biochemistry   87 ( 5 )   555 - 562   2023.5

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  • Determination of boundary between core and outer wood by radial variation modeling in tropical fast-growing tree species Reviewed International coauthorship

    Ngadianto A, Ishiguri F, Nezu I, Irawati D, Ohshima J, Yokota S

    Journal of Sustainable Forestry   42 ( 4 )   421 - 440   2023.3

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Effects of radial growth rate on juvenile wood properties of Pinus sylvestris planted in Mongolia Reviewed International coauthorship

    Ganbaatar B, Ishiguri F, Nezu I, Ohshima J, Yokota S, Tumenjargal B, Sukhbaatar G

    Baltic Forestry   29 ( 1 )   649   2023.3

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  • Geographic and longitudinal variations of anatomical characteristics and mechanical properties in three bamboo species naturally grown in Lombok Island, Indonesia Reviewed International coauthorship

    Rini DS, Ishiguri F, Nezu I, Ngadianto A, Irawati D, Otani N, Ohshima J, Yokota S

    Scientific Reports   13   2265   2023.2

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  • Evaluation of xylem maturation and among-site variation in the anatomical characteristics of Betula platyphylla growing naturally in Mongolia Reviewed International coauthorship

    Erdene-Ochir T, Ishiguri F, Nezu I, Tumenjargal B, Baasan B, Chultem G, Ohshima J, Yokota S

    IAWA Journal   43 ( 4 )   413 - 427   2022.10

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Preliminary evaluation of anatomical characteristics of four common Mongolian softwoods Reviewed International coauthorship

    Sarkhad M, Ishiguriu F, Nezu I, Aiso H, Ngadianto A, Tumenjargal B, Baasan B, Chultem G, Ohshima J, Yokota S

    Forest Science and Technology   18 ( 3 )   87 - 97   2022.9

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  • Among-family variations of direct measurement values for chemical and pulp properties in 4-year-old Eucalyptus camaldulensis half-sib families in Thailand Reviewed International coauthorship

    Mboumba UCM, Tanaka Y, Nezu I, Ishiguri F, Diloksumpun S, Tanabe J, Ohshima J, Iizuka K, Yokota S

    Nordic Pulp & Paper Research Journal   37 ( 3 )   405 - 412   2022.9

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  • Relationship between the xylem maturation process based on radial variations in wood properties and radial growth increments of stems in a fast-growing tree species, Liriodendron tulipifera Reviewed

    Nezu I, Ishiguri F, Ohshima J, Yokota S

    Journal of Wood Science   68   48   2022.8

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • Evaluation of xylem maturation process and effects of radial growth rate on cell morphologies in wood of balsa (Ochroma pryamidale) trees Reviewed

    Pertiwi YAB, Ishiguri F, Nezu I, Aiso H, Hiraoka Y, Marsoem SN, Ohshima J, Yokota S

    Wood and Fiber Science   54 ( 2 )   149 - 159   2022.6

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  • Log characteristics and basic density of four common Mongolian softwoods Reviewed International coauthorship

    Sarkhad M, Ishiguri F, Nezu I, Tumenjargal B, Takahashi Y, Baasan B, Chultem G, Ohshima J, Yokota S

    International Wood Products Journal   13 ( 2 )   99 - 106   2022.5

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  • Radial variations of broad-sense heritability in wood properties and classification of load-deflection curves in static bending for six half-sib families of Chamaecyparis obtusa Reviewed

    Takahashi Y, Ishiguri F, Nezu I, Endo R, Kobayashi S, Tanabe J, Matsushita M, Ohshima J, Yokota S

    Journal of Wood Science   68   24   2022.4

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  • Inheritance of wood color, decay resistance, and polyphenol content of heartwood in full-sib families of Japanese larch (Larix kaempferi (Lamb.) Carr.) Reviewed

    Nezu I, Ishiguri F, Suzuki H, Takahashi Y, Takashima Y, Hiraoka Y, Iki T, Miyashita H, Matsushita M, Habu N, Ohshima J, Yokota S

    Holzforschung   76 ( 4 )   348 - 355   2022.4

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    Authorship:Lead author   Language:English   Publishing type:Research paper (scientific journal)  

  • Secondary xylem maturation evaluated by modeling radial variations in anatomical characteristics and wood properties of Shorea macrophylla (De Vr.) Ashton planted in Sarawak, Malaysia Reviewed International coauthorship

    Nezu I, Ishiguri F, Aiso H, Hiraoka Y, Wasli ME, Ohkubo T, Ohshima J, Yokota S

    Trees   36 ( 2 )   659 - 668   2022.4

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  • Longitudinal and geographic variations in the green moisture content and basic density of bamboo culm in three species naturally grown in Lombok Island, Indonesia Reviewed International coauthorship

    Rini DS, Ishiguri F, Nezu I, Aji IML, Irawati D, Ohshima J, Yokota S

    Tropics   30 ( 4 )   83 - 93   2022.3

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Clonal variations and effects of juvenile wood on lumber quality in Japanese larch Reviewed

    Tumenjargal B, Ishiguri F, Iki T, Takahashi Y, Nezu I, Otsuka K, Ohshima J, Yokota S

    Wood Material Science and Engineering   17 ( 2 )   72 - 81   2022.3

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  • 宇都宮大学構内で生育したユリノキ2×4材の材質に関する予備的試験 Reviewed

    根津郁実,石栗 太,大谷直希,笠原 肇,大島潤一,横田信三

    木材工業   77 ( 2 )   52 - 57   2022.2

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    Authorship:Lead author   Language:Japanese   Publishing type:Research paper (scientific journal)  

  • Wood chemical components and decay resistance of four common Mongolian softwoods Reviewed International coauthorship

    Sarkhad M, Ishiguri F, Nezu I, Tumenjargal B, Baasan B, Chultem G, Ohshima J, Habu N, Yokota S

    Wood Research   67 ( 1 )   76 - 85   2022.2

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  • Modeling of radial variations in wood properties and comparison of juvenile and mature wood of four common conifers in Mongolia Reviewed International coauthorship

    Sarkhad M, Ishiguri F, Nezu I, Tumenjargal B, Takahashi Y, Baasan B, Chultem G, Ohshima J, Yokota S

    Holzforschung   76 ( 1 )   14 - 25   2022.1

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  • Inheritance of the wood properties of the Japanese red pine (Pinus densiflora Siebold et Zucc.) from the open-pollinated families selected as resistance to the pine wood nematode Reviewed

    Ishiguri F, Nezu I, Endo R, Kobayashi S, Ngadianto A, Narusawa D, Takahashi Y, Tanabe J, Iki T, Ohshima J, Yokota S

    Silvae Genetica   70 ( 1 )   186 - 194   2021.11

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    Language:English   Publishing type:Research paper (scientific journal)  

  • Modeling of radial variations of wood properties in naturally regenerated trees of Betula platyphylla grown in Selenge, Mongolia International coauthorship

    Erdene-Ochir T, Ishiguri F, Nezu I, Tumenjargal B, Baasan B, Chultem G, Ohshima J, Yokota S

    Journal of Wood Science   67   61   2021.10

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  • Within-tree and radial variations of wood properties in naturally regenerated trees of Betula platyphylla grown in Nikko, Japan Reviewed International coauthorship

    Erdene-Ochir T, Ishiguri F, Nezu I, Tumenjargal B, Sarkhad M, Ohshima J, Yokota S

    International Wood Products Journal   12 ( 2 )   95 - 106   2021.4

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Awards for Research Activities

  • 第29回日本熱帯生態学会「吉良賞」奨励賞

    2025.5   日本熱帯生態学会  

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    Award type:International academic award (Japan or overseas) 

  • JWRS Best Paper Award 2022

    2023.3  

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    Award type:Honored in official journal of a scientific society, scientific journal 

  • 森林遺伝育種学会第11回大会学生発表優秀賞

    2022.11   森林遺伝育種学会  

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    Award type:Award from Japanese society, conference, symposium, etc. 

  • 森林遺伝育種学会第10回大会学生発表優秀賞

    2021.11   森林遺伝育種学会  

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    Award type:Award from Japanese society, conference, symposium, etc. 

  • 宇都宮大学大学院成績優秀者

    2021.3   宇都宮大学