Personnel Information

写真b

ISHII YURI

Organization
School of Biological and Environmental Sciences Assistant Professor
Research Fields, Keywords
応用微生物学, 微生物生化学, 極限環境微生物, pHストレス, 酢酸菌
Teaching and Research Fields
酢酸菌は、高いエタノール酸化能により効率的に酢酸を生産することから、食酢工業生産に広く用いられています。酢酸の生成は細胞内pHの低下を招きますが、なぜ酢酸菌がこのような極限環境で生命活動を維持できているのかは不明な点が多いです。微生物は温度、浸透圧、pHなどの種々のストレスにさらされますが、pH変化に対する応答機構に関する知見は限られており、酢酸菌はpHストレス応答を調べる上でのモデル微生物になると考えました。そこで現在は、酢酸菌が持つ転写因子や分子シャペロニンに着目し、それらの生化学的な機能解析を通じて、本菌の酸性環境適応機構を明らかにしたいと考えています。また、得られた知見を応用することで、実社会で活用できる技術開発を推し進めていきたいと考えています。
URL
https://researchmap.jp/yuri_ishii
Syllabus information URL
https://syllabus.kwansei.ac.jp/uniasv2/UnSSOLoginControlFree?REQ_ACTION_DO=/AGA030PLS01Action.do?REQ_FUNCTION_JUMP_START_FLG=1&SLB_LINK_DISP_FLG=689&TCH_NO=256003&REQ_PRFR_FUNC_ID=AGA030
SDGs Related Goals
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Graduating School 【 display / non-display 】

  • Graduating School:Kwansei Gakuin University
    Faculty:理工学部
    Course / Major:生命科学科

    Kind of school:University
    Date of graduation:2014.03
    Completion status:Graduated
    Country location code:Japan

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Graduate School 【 display / non-display 】

  • Graduate school:Kwansei Gakuin University
    Department:理工学研究科
    Course:生命科学専攻

    Course completed:Doctor's Course
    Date of completion:2019.03
    Completion status:Completed
    Country:Japan

  • Graduate school:Kwansei Gakuin University
    Department:理工学研究科
    Course:生命科学専攻

    Course completed:Master's Course
    Date of completion:2016.03
    Completion status:Completed
    Country:Japan

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Degree 【 display / non-display 】

  • Degree name:博士（理学）
    Classified degree field:Life Science / Applied microbiology
    Conferring institution:Kwansei Gakuin University
    Acquisition way:Coursework
    Date of acquisition:2019.03

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Career 【 display / non-display 】

  • Affiliation:Kwansei Gakuin University
    Department:School of Biological and Environmental Sciences
    Title:Assistant Professor
    Date:2025.04 -

  • Affiliation:Kwansei Gakuin University
    Department:School of Biological and Environmental Sciences
    Title:Contract Assistant
    Date:2023.04 - 2025.03

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Association Memberships 【 display / non-display 】

  • Academic society name:日本乳酸菌学会
    Academic country located:Japan

  • Academic society name:日本ポリアミン学会
    Academic country located:Japan

  • Academic society name:日本農芸化学会
    Academic country located:Japan

  • Academic society name:日本生物工学会
    Academic country located:Japan

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Research Areas 【 display / non-display 】

  • Research field:Life Science / Applied microbiology

  • Research field:Life Science / Applied biochemistry

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Papers 【 display / non-display 】

  • Language: English
    Title: Replacement of branched-chain polyamine biosynthesis with thermospermine supports survival under both cold and heat stress in the hyperthermophilic archaeon Thermococcus kodakarensis
    Journal name: Appl. Environ. Microbiol. (American Society for Microbiology, Washington DC, USA)  vol.91  (6)  (p.e0032625 - )
    Date of publication: 2025.06
    Author(s): Shinsuke Fujiwara, Riko Satake, Himari Aoki, Kaho Yamada, Yuri Ishii, Wakao Fukuda

    DOI: 10.1128/aem.00326-25
    Type of publication: Research paper (scientific journal)

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  • Language: English
    Title: Branched-chain polyamine beads for sensitive recovery and detection of low-copy DNA in aqueous solutions
    Journal name: J. Biotechnol.  vol.405  (p.290 - 298)
    Date of publication: 2025.06
    Author(s): Shinsuke Fujiwara, Emi Kawamori, Himari Aoki, Yukiko Nakura, Yuri Ishii, Sadahiro Masuo, Kiyoshi Yasukawa, Itaru Yanagihara

    DOI: 10.1016/j.jbiotec.2025.06.008
    Type of publication: Research paper (scientific journal)

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  • Language: English
    Title:  Leucine-responsive regulatory protein in acetic acid bacteria is stable and functions at a wide range of intracellular pH levels
    Journal name: J.Bacteriol. (American Society for Microbiology, Washington DC, USA)  vol.203  (18)  (p.e00162 - )
    Date of publication: 2021.09
    Author(s): Yuri Ishii, Yuki Shige, Naoki Akasaka, Afi Candra Trinugraha, Haruka Higashikubo, Wakao Fukuda, Shinsuke Fujiwara

    DOI: 10.1128/JB.00162-21
    Type of publication: Research paper (scientific journal)

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  • Language: English
    Title: Leucine responsive regulatory protein is involved in methionine metabolism and polyamine homeostasis in acetic acid bacterium Komagataeibacter europaeus
    Journal name: J. Biosci. Bioeng.  vol.125  (1)  (p.67 - 75)
    Date of publication: 2018.01
    Author(s): Yuri Ishii, Naoki Akasaka, Hisao Sakoda, Ryota Hidese, Shinsuke Fujiwara

    DOI: 10.1016/j.jbiosc.2017.07.017
    Type of publication: Research paper (scientific journal)

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  • Language: English
    Title: Polyamines in brown rice vinegar function as potent attractants for the spotted wing drosophila
    Journal name: J. Biosci. Bioeng.  vol.123  (1)  (p.78 - 83)
    Date of publication: 2017.01
    Author(s): Naoki Akasaka, Haruka Higashikubo, Yuri Ishii, Hisao Sakoda, Shinsuke Fujiwara

    DOI: 10.1016/j.jbiosc.2016.06.014
    Type of publication: Research paper (scientific journal)

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MISC 【 display / non-display 】

  • Title:醸造酢におけるショウジョウバエ誘引物質
    Journal name:日本醸造協会誌  vol.114  (1)  (p.18 - 26)
    Date of publication:2019.01
    Author(s):藤原伸介、石井友理、佐古田久雄、赤坂直紀

    DOI:https://doi.org/10.6013/jbrewsocjapan.114.18

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Presentations 【 display / non-display 】

  • Language:Japanese
    Conference name:第77回日本生物工学会
    International/Domestic presentation:Domestic presentation
    Holding date：2025.09
    Presentation date：2025.09.12
    Title:分岐鎖ポリアミンビーズを利用した核酸の検出技術
    Presentation type:Oral presentation (general)

  • Language:Japanese
    Conference name:第77回日本生物工学会
    International/Domestic presentation:Domestic presentation
    Holding date：2025.09
    Presentation date：2025.09.12
    Title:耐熱性鎖置換型DNAポリメラーゼの改変と等温核酸増幅法への応用
    Presentation type:Oral presentation (general)

  • Language:Japanese
    Conference name:第77回日本生物工学会
    International/Domestic presentation:Domestic presentation
    Holding date：2025.09
    Presentation date：2025.09.10
    Title:Mechanism of structural stability of the Leucine-responsive regulatory protein (Lrp) across a broad pH range in acetic acid bacteria
    Presentation type:Oral presentation (general)

  • Language:Japanese
    Conference name:第77回日本生物工学会
    International/Domestic presentation:Domestic presentation
    Holding date：2025.09
    Presentation date：2025.09.10
    Title:耐熱性酵素の高温環境下での可溶化と活性再生
    Presentation type:Oral presentation (general)

  • Language:Japanese
    Conference name:第77回日本生物工学会
    International/Domestic presentation:Domestic presentation
    Holding date：2025.09
    Presentation date：2025.09.10
    Title:酢酸菌に見られる分子シャペロニンの特殊性
    Presentation type:Oral presentation (general)

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