HASHIGUCHI Masatsugu

写真a

Affiliation

Faculty of Regional Innovation

Title

Associate Professor

Contact information

Contact information

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Degree 【 display / non-display

  • 博士(農学) ( 2007.3   鹿児島大学 )

  • 修士(農学) ( 2001.3   宮崎大学 )

  • 学士(農学) ( 1999.3   宮崎大学 )

Research Areas 【 display / non-display

  • Environmental Science/Agriculture Science / Crop production science  / 作物栽培学

  • Environmental Science/Agriculture Science / Science in plant genetics and breeding  / 生物遺伝資源

Education 【 display / non-display

  • Kagoshima University

    2001.4 - 2004.3

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    Country:Japan

  • University of Miyazaki   Graduate School, Division of Agriculture

    1999.4 - 2001.3

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    Country:Japan

Campus Career 【 display / non-display

  • University of Miyazaki   Faculty of Regional Innovation   Associate Professor

    2021.10 - Now

  • University of Miyazaki   Faculty of Agriculture   Department of Animal and Grassland Sciences   Assistant Professor

    2013.04 - 2021.09

  • University of Miyazaki   Frontier Science Research Center   Assistant Professor

    2012.05 - 2013.03

  • University of Miyazaki   Frontier Science Research Center   Part-time researcher for university or other academic organization

    2006.04 - 2012.03

  • University of Miyazaki   Faculty of Agriculture   Department of Biological Production and Environmental Sciences   Meadow environmental science course   Part-time researcher for university or other academic organization

    2004.04 - 2006.03

 

Papers 【 display / non-display

  • 『茶の味わい方』を通じた学際的学びの構築 ― 栄養学と社会学の連携による高校生対象プログラムの実践報告 ― Reviewed

    福島三穂子, 永野ひかる,西和盛,戸敷浩介,橋口正嗣

    州地区国立大学教育系・文系研究論文集   12 ( 2 )   2026.3

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    Publishing type:Research paper (scientific journal)  

  • Effect of Drought Stress and Short-term Recovery on Proline and Polyamine Metabolism in Lotus japonicus Reviewed International coauthorship

    Lee Y., Yamamoto A., Ragaey M., Hashiguchi M., Akashi R., Saeki Y.

    Agricultural Research   15 ( 1 )   105 - 118   2026.3

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

    DOI: 10.1007/s40003-024-00832-5

  • A novel high-throughput digital morphological phenotyping method for evaluating growth traits in rice Reviewed

    青木 謙二, 橋口 正嗣, 明石 良, 田中 秀典

    Plant Phenome Journal   8 ( 1 )   e70054   2025.12

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

    High-throughput and noninvasive phenotyping methods are promising technology for improving efficiency in plant research and breeding. In this study, we evaluated the performance of a digital phenotyping system (DPS) based on three-dimensional (3D) model reconstruction for quantifying key growth traits in rice (Oryza sativa). The DPS was used to estimate plant height, biomass, color, leaf morphology, and tiller angle in four rice varieties (Koshihikari, Nipponbare, PL9, and Tachiaoba). The results show high accuracy and correlation between manually measured and DPS-derived traits. Notably, the 3D volume analysis can quantify biomass accumulation and growth dynamics and revealed distinct differences among varieties. The strong correlation between the green-red normalized difference index (a red-green-blue-based index) and soil plant analysis development also demonstrated the viability of the system in monitoring leaf color without using a multispectral instrument. The analysis also captured growth patterns over time, including canopy development and senescence, which are often challenging to quantify through manual measurements alone. Furthermore, the tiller angle estimation derived from DPS provided an alternative method to plant architecture evaluation, demonstrating its potential for use in breeding programs aimed to optimize canopy structure. These findings establish DPS as a reliable and scalable tool for a digital phenotyping platform that enables comprehensive trait analysis with reduced labor and increased precision and the capability to continuously monitor plant growth and biomass accumulation. This study shows the potential of this novel digital tool for automating manual measurements, which can increase efficiency and expedite research and breeding in rice and other crops.

    CiNii Research

  • Differential salt stress responses and the role of polyamine metabolism in Lotus japonicus ecotypes Reviewed

    Yongjae Lee, Akihiro Yamamoto, Chika Kuranaga-Kubo, Marwa Ragaey, Masatsugu Hashiguchi, Ryo Akashi, Yuichi Saeki

    Discover Plants   ( 2 )   252   2025.8

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    Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s44372-025-00300-6

  • 高千穂地域の在来大豆「麻尻大豆」の収量特性

    橋口正嗣

    宮崎大学地域資源創成学部紀要   ( 9 )   45 - 51   2025.8

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

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Books 【 display / non-display

  • The National BioRecource Project in Japan. In: Tabata S and Stugaard J(Eds) The Lotus japonicus genome

    1. Hashiguchi M and Akashi R( Role: Contributor)

    Springer Berlin  2014.10 

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    Language:English Book type:Scholarly book

  • 大学的宮崎ガイド-こだわりの歩き方 ーナショナルバイオリソースプロジェクトとミヤコグサー

    橋口 正嗣( Role: Contributor ,  ナショナルバイオリソースプロジェクトとミヤコグサ)

    昭和堂  2026.3  ( ISBN:978-4-8122-2508-0

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    Total pages:316   Responsible for pages:81-84   Language:Japanese Book type:General book, introductory book for general audience

  • 大学的宮崎ガイド-こだわりの歩き方 ー都城在来大豆「みやだいず」ー

    橋口正嗣( Role: Contributor ,  都城在来大豆「みやだいず」)

    昭和堂  2026.3  ( ISBN:978-4-8122-2508-0

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    Total pages:316   Responsible for pages:65-80   Language:Japanese Book type:General book, introductory book for general audience

  • 豆類の百科事典

    豆類の百科事典( Role: Contributor ,  マメ科のモデル植物)

    朝倉書店  2024.5  ( ISBN:978-4-254-40026-7

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    Total pages:561   Responsible for pages:64-65   Language:Japanese Book type:Dictionary, encyclopedia

  • 形質転換プロトコール植物編 田部井豊 編 2章 牧草2-5バーズフットトレフォイルの形質転換プロトコール

    田中秀典・橋口正嗣・明石 良( Role: Contributor)

    化学同人  2012.9 

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    Language:Japanese Book type:Scholarly book

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MISC 【 display / non-display

  • 宮崎大学フロンティア科学総合研究センター・遺伝資源分野

    権藤 崇裕, 橋口 正嗣

    生物工学会誌   102 ( 10 )   529 - 530   2024.10

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    Language:Japanese   Publishing type:Rapid communication, short report, research note, etc. (scientific journal)   Publisher:公益社団法人 日本生物工学会  

    DOI: 10.34565/seibutsukogaku.102.10_529

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  • 野生ダイズのゲノム情報および特性解析からみえてきた 遺伝的多様性とダイズのスマート育種への活用に向けて Invited

    橋口 拓勇, 佐藤 修正, 田中 秀典, 橋口 正嗣

    JATAFFジャーナル   2022.12

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    Authorship:Corresponding author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

  • NBRPミヤコグサ・ダイズにおけるバイオリソース整備 Invited

    橋口 正嗣,田中 秀典,橋口 拓勇,明石 良

    農業および園芸   96 ( 2 )   153 - 162   2021.2

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

    CiNii Research

  • マメ科植物研究のためのミヤコグサバイオリソース Invited Reviewed

    橋口正嗣,佐藤修正,橋口拓勇,田中秀典,明石 良

    植物科学の最前線(BSJ-Review)   10   179 - 189   2019.7

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Publisher:日本植物学会  

    DOI: 10.24480/bsj-review.10c9.00169

  • Perspectives on the use of bioresources in breeding sciences: Lessons from successful studies Invited

    Nasuda Shuhei, Ito Emi, Sato Yutaka, Hisano Hiroshi, Sato Kazuhiro, Komatsuda Takao, Ishikawa Ryo, Hashiguchi Masatsugu, Suzuki Akihiro, Hoshikawa Ken

    Breeding Research   21 ( 1 )   81 - 85   2019.6

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Publisher:Japanese Society of Breeding  

    DOI: 10.1270/jsbbr.21.W06

    CiNii Research

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Presentations 【 display / non-display

  • 地域資源としての”茶”から広がる学際教育・研究 ー地域資源創成学部の挑戦の歩みー

    西 和盛, 戸敷浩介, 福島三穂子, 橋口正嗣, 永野ひかる

    第93回宮崎大学イブニングセミナー  2025.11.18 

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    Event date: 2025.11.18

    Presentation type:Public lecture, seminar, tutorial, course, or other speech  

  • 宮崎県における早期水稲後作栽培に適したダイズ品種の開発

    橋口正嗣・高見陽愛・今西耕平・萬寿公貴・原田久也・明石 良

    日本作物学会第260回講演会  2025.9.22 

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    Event date: 2025.9.21 - 2025.9.22

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 異なる灌水条件の塩類化土壌におけるシバ属3種の成育、被度の比較評価

    藤 康樹, 山本 昭洋, 橋口 正嗣, Marwa Ragaey, 佐伯 雄一, 明石 良

    日本土壌肥料学会 2025年度新潟大会  2025.9.18 

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    Event date: 2025.9.17 - 2025.9.19

    Presentation type:Poster presentation  

  • 異なるLED照明がミヤコグサの生育および種子収量におよぼす影響

    黄 琬媚、田中 秀典、権藤 崇裕、明石 良、橋口 正嗣

    植物微生物研究会第34回研究交流会  2025.9.17 

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    Event date: 2025.9.16 - 2025.9.17

    Presentation type:Poster presentation  

  • 高千穂地域に伝わる在来大豆「麻尻大豆」について

    鬼塚美沙希・橋口正嗣

    宮崎大学研究・産学地域連携推進機構第32回技術・研究発表交流会  2025.9.12 

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    Event date: 2025.9.12

    Presentation type:Poster presentation  

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Grant-in-Aid for Scientific Research 【 display / non-display

  • 植物ー微生物間の情報伝達分子としてのフラボノイド硫酸体に関する研究

    Grant number:23K05027  2023 - 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(C)

    橋口 拓勇

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    Authorship:Coinvestigator(s) 

Other research activities 【 display / non-display

  • 宮崎大学 ミッション実現戦略プロジェクト ー微生物叢制御技術を基盤とした持続的農業生産と健康福祉の向上ー

    2023.04

  • 宮崎大学地域資源創成学部 茶研究会

    2023

  • 宮崎大学GIAHS研究会

    2021.10

 

Social Activities 【 display / non-display

  • みやだいず地域おこしプロジェクト

    Role(s): Lecturer, Advisor, Investigater

    2018.4.1 - Now

  • みやだいず:都城在来種に秘められた可能性

    Role(s): Appearance, Lecturer, Informant, Organizing member

    宮崎大学  2025.12.14

  • みやだいず物語、そして未来へ

    Role(s): Panelist

    みやざき発酵文化ネットワーク  みやざき発酵フェスタ  2026.3.22

  • お茶の品種

    Role(s): Lecturer

    宮崎大学地域資源創成学部  宮崎の未来を拓く:お茶と農業の探究授業  2026.1.20

  • 植物としてのダイズ:ダイズ遺伝資源の活⽤

    Role(s): Appearance, Lecturer, Informant

    ダイズで拓く明るい未来 ~ダイズの活用で都城の産業振興を目指そう~  2025.11.29

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Academic Activities 【 display / non-display

  • 日本農芸化学会2026 年度大会 附設展示会

    日本農芸化学会  2026.3.10 - 2026.3.12

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    Type:Academic society, research group, etc. 

  • 第48回日本分子生物学会年会展示(NBRP展示)

    日本分子生物学会  2025.12.3 - 2025.12.5

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    Type:Academic society, research group, etc. 

  • NBRP出展 ーミヤコグサ・ダイズー(Bio Japan 2025)

    BioJapan2025  2025.10.8 - 2025.10.10

  • NBRP出展_ミヤコグサ・ダイズ(第66回日本植物生理学会年会)

    第66回日本植物生理学会年会  2025.3.14 - 2025.3.16

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    Type:Academic society, research group, etc. 

  • NBRP出展_ミヤコグサ・ダイズ(第97回日本生化学会大会)

    第97回日本生化学会大会  ( パシフィコ横浜ノース ) 2024.11.6 - 2024.11.8

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