Sakakibara Hitoshi

サカキバラヒトシ | Sakakibara Hitoshi

Affiliation and department：
Job title： Plant_Science_Center
Homepage URL (1)： https://www.agr.nagoya-u.ac.jp/~ck/

Research field (1)： Plants: molecular biology and physiology

Research keywords (31)：サイトカイニン , Cell-to-cell Communication , Stem Cell , 窒素栄養 , 遺伝子発現 , 代謝 , アグロバクテリウム , イネ , シロイヌナズナ , 植物病原菌 , グルタミン , 窒素同化 , タンパク質 , トウモロコシ , グルタミン合成酵素 , 配糖化 , His-Asp phosphorelay , 土壌微生物 , 二成分情報伝達系 , サイトカイニン合成酵素 , 帯化 , Plant hormones , 形質転換 , 二酸化炭素 , 葉緑体 , クロストーク , His-Aspリン酸リレー , 受容体 , Plant productivity , Plant nutrition , Plant physiology

Research theme for competitive and other funds (29)：

2023 - 2027 Molecular basis for the structural diversity and mode of action of cytokinins produced by plant pathogens
2023 - 2024 Physiological roles of cell wall-localized cytokinin ribosidase
2021 - 2024 Study on physiological role of cell wall-associated cytokinin ribosidase
2019 - 2024 Development of "super-bio-functions" by plasma-activated biological substances
2019 - 2023 Elucidation of structure and function of novel cytokinins produced by phytopathogen

2017 - 2022 Principles of pluripotent stem cells underlying plant vitality

2017 - 2022 Study on role of phytohormones in regulation of stem cell proliferation

2015 - 2017 蘚苔類の多様性を利用した重金属回収と環境浄化の効果的方法の研究開発

2014 - 2017 Physiological roles and molecular mechanisms of abscisic acid-responsive chloroplast aggregative movement specific to C4 plants

2013 - 2016 Elucidation of common regulatory mechanisms for nodule and meristem development

2009 - 2016 Comprehensive studies of plant responses to high CO2 world by an innovative consortium of ecologists and molecular biologists

2012 - 2015 Study for biosynthesis pathway of novel cytokinins in phytopathogens

2010 - 2015 Evolutionary basis from arbuscular mycorrhizal symbiosis and root nodule symbiosis

2009 - 2014 Elucidation of carbon/nitrogen balance signal transduction system via plant hormones

2011 - 2012 植物病原性細菌における新奇サイトカイニン生合成経路の解明

2009 - 2011 Study on metabolic system and function of cis-zeatin in monocots

2007 - 2008 腋芽の休眠・成長に関わるプラスチドの機能獲得に関する研究

2006 - 2008 Study for mechanism of non-transit peptide protein transport system to plastids

2005 - 2006 腋芽の休眼・成長に関わるプラスチドの機能獲得に関する研究

2000 - 2004 植物ホルモンを介した窒素情報伝達におけるHis・Aspリン酸リレー系の役割

1999 - 2000 シロヘム生合成と無機窒素・無機硫黄同化系の機能発現機構の研究

1997 - 1998 グルタミン合成酵素多重遺伝子族の機能分化とその生理的意義の研究

1996 - 1996 窒素に応答したサイトカイニン蓄積の分子機構

1994 - 1994 高等植物の窒素および炭素同化系遺伝子間でのグルタミンに関連した発現制御機構の解析

1992 - 1993 The Regulation of Photosynthesis and Nitrogen Assimilation Genes by Nitrogen in C4 Plants

Analysis of plant hormones in plant tissues

Elucidation cytokinin transporting system in plants

Elucidation of cytokinin-mediated nitrogen signaling system in higher plants

Elucidation of cytokinin biosynthesis pathway

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Papers (343)：

Yuki Tanaka, Tomohiro Suzuki, Keisuke Mitsukuni, Jae-Hoon Choi, Takahito Nomura, Mikiko Kojima, Yumiko Takebayashi, Hitoshi Sakakibara, Hitoshi Ouchi, Makoto Inai, et al. Comprehensive transcriptomic analysis revealing that 2-azahypoxanthine treatment induces the stress response in Arabidopsis thaliana. Bioscience, Biotechnology, and Biochemistry. 2025
Yukako Nomura, Yu Lu, Keiichiro Harada, Hirofumi Enomoto, Ryoichi Yano, Kentaro Ezura, Mikiko Kojima, Yumiko Takebayashi, Hitoshi Sakakibara, Hiroshi Ezura, et al. Spatiotemporal localization of jasmonate in the regulation of fruit set in tomato. Journal of Experimental Botany. 2025
Shunji Shimadzu, Takaaki Yonekura, Tomoyuki Furuya, Mikiko Kojima, Kimitsune Ishizaki, Masashi Asahina, Kyoko Ohashi-Ito, Hitoshi Sakakibara, Hidehiro Fukaki, Hiroo Fukuda, et al. A cytokinin response maximum induces and activates bifacial stem cells for radial growth. Nature Plants. 2025
Yi Luo, Yuki Hata, Juri Ohtsuka, Aino Komatsu, Mikiko Kojima, Hitoshi sakakibara, Junko Kyozuka. MAX2-dependent signaling regulates the transition from 2D to 3D growth by suppressing cytokinin accumulation in Physcomitrium patens. 2025
Hitoshi Sakakibara. Five unaddressed questions about cytokinin biosynthesis. Journal of Experimental Botany. 2025

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MISC (93)：

塩谷太一, 井本駿平, 神谷岳洋, 木羽隆敏, 榊原均, 田畑亮. シロイヌナズナの器官間シグナルを介した鉄欠乏応答制御. 日本土壌肥料学会講演要旨集(Web). 2023. 69
北本尚子, 馬場隆士, 岡田和馬, 榊原均, 竹林裕美子, 小嶋美紀子, 吉田康徳, 神田啓臣, 今西弘幸. Transcriptome analyses of ‘Wijcik’ (Malus domestica Borkh.) with columnar growth phenotype in ON year during flower induction. 園芸学研究別冊. 2021. 20. 2
深澤拓也, 小嶋美紀子, 竹林裕美子, 榊原均, 北村嘉邦. Jasmonic acid transported from carpel contributes to tepal expansion in lily. 園芸学研究別冊. 2020. 19. 1
筧雄介, 上野広樹, 山田瑞樹, 松尾哲, 長菅香織, 浜本浩, 磯山陽介, 礒崎真英, 高橋宏和, 中園幹生, et al. 遺伝子発現モデルを用いた育苗条件選択ツール. 園芸学研究別冊. 2019. 18. 2
大高きぬ香, 吉田明希子, 吉田明希子, 福井康佑, 福井康佑, 小嶋美紀子, 竹林裕美子, 矢野加奈子, 今西俊介, 榊原均, et al. トマト育苗期の草丈における温度効果に関する解析. 日本植物学会大会研究発表記録. 2018. 82nd

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Patents (16)：

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Education (2)：

1988 - 1992 Nagoya University Graduate School of Agricultural Sciences Department of Agricultural Chemistry
1984 - 1988 Nagoya University School of Agricultural Sciences Department of Agricultural Chemistry

Professional career (1)：

Doctor of Agriculture

Work history (4)：

2015/04 - 現在 Nagoya University Graduate School of Bioagricultural Sciences Professor
2006/10 - 2018/03 RIKEN Group director
2000/10 - 2006/09 理化学研究所チームリーダー
1992/04 - 2000/09 Nagoya University School of Agricultural Sciences

Awards (21)：

2024/11 - Highly Cited Researcher, クラリベイト・アナリティクス
2023/11 - クラリベイト・アナリティクス Highly Cited Researcher
2023/11 - Medal with Purple Ribbon
2023/10 - Nagoya University Ishii Kenichiro Award
2023/03 - Japanese Society of Plant Physiologists JSPP Award

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Association Membership(s) (6)：

American Society of Plant Biologists , 植物化学調節学会 , 日本分子生物学会 , 日本植物学会 , 日本農芸化学会 , 日本植物生理学会

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