Updated on 2024/11/13

写真a

 
OKAMOTO Satoru
 
Organization
Academic Assembly Institute of Science and Technology NOUGAKU KEIRETSU Associate Professor
Faculty of Agriculture Department of Agriculture Associate Professor
Title
Associate Professor
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Degree

  • 博士(理学) ( 2009.3   東京大学 )

Research Interests

  • Glycine max

  • Lotus japonicus

  • Peptide

  • Sink-source

  • Arabidopsis thalinana

  • Xylem sap

  • Organ-to-organ communication

Research Areas

  • Life Science / Molecular biology

  • Life Science / Plant molecular biology and physiology

  • Life Science / Plant nutrition and soil science

Research History

  • Niigata University   Department of Agriculture, Faculty of Agriculture   Associate Professor

    2022.12

  • Niigata University   Environmental Science and Technology, Institute of Science and Technology, Academic Assembly   Associate Professor

    2022.12

  • Niigata University   Faculty of Agriculture   Assistant Professor

    2017.12 - 2022.11

Professional Memberships

  • 日本作物学会

    2018.9

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  • THE JAPANESE SOCIETY OF PLANT PHYSIOLOGISTS

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  • THE JAPANESE SOCIETY FOR CHEMICAL REGULATION OF PLANTS

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Papers

  • Root-knot nematode modulates plant CLE3-CLV1 signaling as a long-distance signal for successful infection Reviewed

    Satoru Nakagami, Michitaka Notaguchi, Tatsuhiko Kondo, Satoru Okamoto, Takanori Ida, Yoshikatsu Sato, Tetsuya Higashiyama, Allen Yi-Lun Tsai, Takashi Ishida, Shinichiro Sawa

    Science Advances   9 ( 22 )   2023.6

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    Publishing type:Research paper (scientific journal)   Publisher:American Association for the Advancement of Science (AAAS)  

    Plants use many long-distance and systemic signals to modulate growth and development, as well as respond to biotic and abiotic stresses. Parasitic nematodes infect host plant roots and cause severe damage to crop plants. However, the molecular mechanisms that regulate parasitic nematode infections are still unknown. Here, we show that plant parasitic root-knot nematodes (RKNs), Meloidogyne incognita , modulate the host CLAVATA3 (CLV3)/EMBRYO SURROUNDING REGION (CLE)–CLV1 signaling module to promote the infection progression. Plants deficient in the CLE signaling pathway show enhanced RKN resistance, whereas CLE overexpression leads to increased susceptibility toward RKN. Grafting analysis shows that CLV1 expression in the shoot alone is sufficient to positively regulate RKN infection. Together with results from the split-root culture system, infection assays, and CLE3-CLV1 binding assays, we conclude that mobile root-derived CLE signals are perceived by CLV1 in the shoot, which subsequently produce systemic signals to promote gall formation and RKN reproduction.

    DOI: 10.1126/sciadv.adf4803

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  • Comparative anatomical and hormonal analyses between kohlrabi and broccoli seedlings: Relevance to kohlrabi stem tuber initiation Reviewed

    Md. Nuruzzaman, Mikiko Kojima, Masato Sato, Yumiko Takebayashi, Mozammel Hoque, Satoru Okamoto, Daniel J. Shea, Ryo Fujimoto, Eigo Fukai, Hitoshi Sakakibara, Keiichi Okazaki

    Scientia Horticulturae   316   112002 - 112002   2023.6

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    Publishing type:Research paper (scientific journal)   Publisher:Elsevier BV  

    DOI: 10.1016/j.scienta.2023.112002

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  • Collection of Xylem Exudates from the Model Plant Arabidopsis and the Crop Plant Soybean Reviewed

    Satoru OKamoto, Azusa Kawasaki

    BIO-PROTOCOL   12 ( 19 )   2022.10

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:Bio-Protocol, LLC  

    DOI: 10.21769/bioprotoc.4520

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  • Comparative transcriptome analysis during tuberous stem formation in Kohlrabi (B. oleracea var. gongylodes) at early growth periods (seedling stages). Reviewed International journal

    Md Nuruzzaman, Masato Sato, Satoru Okamoto, Hoque Mozammel, Daniel J Shea, Ryo Fujimoto, Motoki Shimizu, Eigo Fukai, Keiichi Okazaki

    Physiologia plantarum   e13770   2022.8

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

    Tuberous stem of kohlrabi is an important agronomic trait, however, the molecular basis of tuberization is poorly understood. To elucidate the tuberization mechanism, we conducted a comparative transcriptomic analysis between kohlrabi and broccoli at 10 and 20 days after germination (DAG) as tuberous stem initiated between these time points. A total of 5580 and 2866 differentially expressed transcripts (DETs) were identified between genotypes (kohlrabi vs broccoli) and growth stages (10 DAG vs 20 DAG), respectively, and most of the DETs were down-regulated in kohlrabi. Gene ontology (GO) and KEGG pathway enrichment analyses showed that the DETs between genotypes are involved in cell wall loosening and expansion, cell cycle and division, carbohydrate metabolism, hormone transport, hormone signal transduction, and in several transcription factors. The DETs identified in those categories may directly/indirectly relate to the initiation and development of tuberous stem in kohlrabi. In addition, the expression pattern of the hormone synthesis related DETs coincided with the endogenous IAA, IAAsp, GA, ABA and tZ profiles in kohlrabi and broccoli seedlings, that were revealed in our previous phytohormone analysis. This is the first report on comparative transcriptome analysis for tuberous stem formation in kohlrabi at early growth periods. The resulting data could provide significant insights into the molecular mechanism underlying tuberous stem development in kohlrabi as well as in other tuberous organ forming crops. This article is protected by copyright. All rights reserved.

    DOI: 10.1111/ppl.13770

    PubMed

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  • Altered carbon status in Glycine max hairy roots induced by Agrobacterium rhizogenes Reviewed

    Satoru Okamoto, Yukiko Ueki

    Plant Signaling & Behavior   2022.6

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

    DOI: 10.1080/15592324.2022.2097469

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Books

  • 植物のシグナル伝達

    岡本 暁( Role: Contributor ,  根粒形成のシステミックな抑制をひき起こす誘導性CLE遺伝子)

    共立出版  2010.5 

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MISC

  • P083 A search for long-distance mobile peptides in soybean xylem sap

    Okamoto Satoru, Suzuki Takamasa, Kawaguchi Masayoshi, Higashiyama Tetsuya, Matsubayashi Yoshikatsu

    50   101 - 101   2015.10

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    Language:Japanese   Publisher:The Japanese Society for Chemical Regulation of Plants  

    CiNii Article

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  • 81. A search for long-distance mobile peptides in xylem sap

    Okamoto Satoru, Suzuki Takamasa, Higashiyama Tetsuya, Matsubayashi Yoshikatsu

    49   99 - 99   2014.10

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    Language:Japanese   Publisher:The Japanese Society for Chemical Regulation of Plants  

    CiNii Article

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  • 81. Long-distance regulation of nodulation mediated by CLE peptide-HAR1 receptor signaling

    Okamoto Satoru, Shinohara Hidefumi, Mori Tomoko, Matsubayashi Yoshikatsu, Kawaguchi Masayoshi

    48   96 - 96   2013.10

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    Language:Japanese   Publisher:The Japanese Society for Chemical Regulation of Plants  

    CiNii Article

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  • Functional analysis of CLAVATA2, CLAVATA3 like genes in Lotus japonicus

    Satoru Okamoto, Naoto Satou, Erika Kira, Tomomi Nakagawa, Izumi Hukuhara, Syusei Satou, Satoshi Tabata, Perry Jillian, Wang Trevor, Masayoshi Kawaguchi

    PLANT AND CELL PHYSIOLOGY   48   S193 - S193   2007

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    Language:English   Publishing type:Research paper, summary (international conference)   Publisher:OXFORD UNIV PRESS  

    Web of Science

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  • Lotus japonicus CLAVATA2 negatively regulates nodulation

    SATO Naoto, OKAMOTO Satoru, OKA KIRA Erika, FUKUHARA Izumi, OHTSUBO Yoko, NAKAGAWA Tomomi, SATO Shusei, TABATA Satoshi, PERRY Jillian, WANG Trevor, KAWAGUCHI Masayoshi

    119   147 - 148   2006.12

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Presentations

  • Long-distance mobile peptides maintain root sucrose level and root growth

    Satoru Okamoto, Azusa Kawasaki, Yumiko Makino, Takashi Ishida, Shinichiro Sawa

    2021.3 

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    Language:English   Presentation type:Symposium, workshop panel (nominated)  

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  • A study of root-to-shoot long-distance mobile peptides Invited

    International Workshop on Plant Nutritional Responses 2019  2019.12 

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    Event date: 2019.12

    Language:English   Presentation type:Oral presentation (invited, special)  

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  • ペプチドを介した根から地上部への長距離コミュニケーション Invited

    岡本暁

    第60回新潟生化学懇話会  2019.7 

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    Event date: 2019.7

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

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  • 道管液中の低分子タンパク・ペプチドの網羅的な解析

    岡本暁, 牧野由美子

    日本作物学会第247回講演会  2019.3 

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    Event date: 2019.3

    Language:Japanese   Presentation type:Poster presentation  

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  • Exhaustive analysis of small proteins and peptides in xylem sap under different nutrient conditions

    2019.3 

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    Event date: 2019.3

    Presentation type:Poster presentation  

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Awards

  • Fellowship Award

    2016.12   Cold Spring Harbor Asia  

    Okamoto Satoru

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  • 優秀発表賞

    2015.10   植物化学調節学会  

    岡本 暁

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  • PCP論文賞

    2011.7   日本植物生理学会  

    岡本 暁

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Research Projects

  • Transcale Systemic Signaling and Metabolomics for Symbiosis

    Grant number:23H00381

    2023.4 - 2027.3

    System name:Grants-in-Aid for Scientific Research

    Research category:Grant-in-Aid for Scientific Research (A)

    Awarding organization:Japan Society for the Promotion of Science

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    Grant amount:\47060000 ( Direct Cost: \36200000 、 Indirect Cost:\10860000 )

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  • ペプチドを介して根から葉に対して光合成産物を要求するシグナル伝達機構の研究

    Grant number:22K06277

    2022.4 - 2025.3

    System name:科学研究費助成事業

    Research category:基盤研究(C)

    Awarding organization:日本学術振興会

    岡本 暁

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    Grant amount:\4160000 ( Direct Cost: \3200000 、 Indirect Cost:\960000 )

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  • A study about signaling sysytem of carbon-deficient responsive peptide

    Grant number:17K15137

    2017.4 - 2020.3

    System name:Grants-in-Aid for Scientific Research

    Research category:Grant-in-Aid for Young Scientists (B)

    Awarding organization:Japan Society for the Promotion of Science

    Okamoto Satoru

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    Grant amount:\4550000 ( Direct Cost: \3500000 、 Indirect Cost:\1050000 )

    Carbon allocation between photosynthesizing leaves and non-photosynthesizing organs is quite important for growth and yield formation in crops. Recently I identified carbon-deficient responsive peptide gene, AXL, and found that it positively regulates root sucrose content. However, it remains elusive how AXL controls root sucrose level. Here I found that the expression amount of Sucrose-proton symporter 2 (SUC2) in mature leaves was diminished in axl septuple mutant and the root genotype of AXL genes contributes to the transcriptional activation of SUC2. These findings suggest that AXL controls root sucrose level via SUC2 in mature leaves.

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  • 炭素源の欠乏に関連して発現誘導される長距離移行性分泌型ペプチドの機能解析

    2015.4 - 2017.3

    System name:若手研究B

    Awarding organization:日本学術振興会

    岡本 暁

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    Authorship:Principal investigator  Grant type:Competitive

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  • 高等植物における分泌型ペプチドの器官間・細胞間移行の解析

    2012.4 - 2015.3

    System name:特別研究員奨励費

    Awarding organization:日本学術振興会

    岡本 暁

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    Authorship:Principal investigator  Grant type:Competitive

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Teaching Experience (researchmap)

Teaching Experience

  • 農業資源を知る

    2024
    Institution name:新潟大学

  • 作物分子生物学

    2024
    Institution name:新潟大学

  • 生物資源科学演習I

    2023
    Institution name:新潟大学

  • 科学英語演習

    2023
    Institution name:新潟大学

  • 卒業論文II

    2023
    Institution name:新潟大学

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