Hitoshi Sakakibara

45.1k citations

372 papers · 31.7k indexed · 11 hit papers · h-index 94

Plant Science top 0.01%
Molecular Biology top 0.1%
Genetics top 0.5%
Cell Biology top 0.5%
Ecology, Evolution, Behavior and Systematics top 0.5%

Co-authors: Mikiko Kojima Takatoshi Kiba Kentaro Takei Tatsuo Sugiyama Tomoyuki Yamaya Makoto Matsuoka Kazuhiro Oiwa Naoya Hirose
Topics: Plant Molecular Biology Research (184 papers)Plant nutrient uptake and metabolism (93 papers)Plant Reproductive Biology (92 papers)
Cited by: Plant Science Molecular Biology Horticulture
Journals: Nature Science Proceedings of the National Academy of Sciences
Partner nations: Japan United States Germany

In The Last Decade

Hitoshi Sakakibara

366 papers receiving 31.1k citations

Hit Papers

5 papers align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Cytokinin Oxidase Regulates Rice Grain Production

2005 1.4k citations Motoyuki Ashikari, Hitoshi Sakakibara et al. Science profile →
CYTOKININS: Activity, Biosynthesis, and Translocation

2006 1.1k citations Hitoshi Sakakibara profile →
Enhancement of oxidative and drought tolerance in Arabidopsis by overaccumulation of antioxidant flavonoids

2013 941 citations Keiko Yonekura‐Sakakibara, Mikiko Kojima et al. The Plant Journal profile →
The ethylene response factors SNORKEL1 and SNORKEL2 allow rice to adapt to deep water

2009 766 citations Hitoshi Sakakibara, Hidemi Kitano et al. profile →
Direct control of shoot meristem activity by a cytokinin-activating enzyme

2007 761 citations Nanae Ueda, Mikiko Kojima et al. profile →
Delayed leaf senescence induces extreme drought tolerance in a flowering plant

2007 672 citations Rosa M. Rivero, Mikiko Kojima et al. Proceedings of the National Academy of Sciences profile →
Analysis of Cytokinin Mutants and Regulation of Cytokinin Metabolic Genes Reveals Important Regulatory Roles of Cytokinins in Drought, Salt and Abscisic Acid Responses, and Abscisic Acid Biosynthesis

2011 591 citations Rie Nishiyama, Yasuko Watanabe et al. The Plant Cell profile →
PSEUDO-RESPONSE REGULATORS 9, 7, and 5 Are Transcriptional Repressors in the Arabidopsis Circadian Clock

2010 469 citations Norihito Nakamichi, Takatoshi Kiba et al. The Plant Cell profile →
Hormonal control of nitrogen acquisition: roles of auxin, abscisic acid, and cytokinin

2010 395 citations Takatoshi Kiba, Mikiko Kojima et al. profile →
TheArabidopsisNitrate Transporter NRT2.4 Plays a Double Role in Roots and Shoots of Nitrogen-Starved Plants

2012 332 citations Takatoshi Kiba, Hitoshi Sakakibara et al. The Plant Cell profile →
Interactions between nitrate and ammonium in their uptake, allocation, assimilation, and signaling in plants

2016 309 citations Takushi Hachiya, Hitoshi Sakakibara profile →

Peers

Countries citing papers authored by Hitoshi Sakakibara

Since Specialization

Citations

This map shows the geographic impact of Hitoshi Sakakibara's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Hitoshi Sakakibara with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hitoshi Sakakibara more than expected).

Fields of papers citing papers by Hitoshi Sakakibara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Hitoshi Sakakibara. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Hitoshi Sakakibara. The network helps show where Hitoshi Sakakibara may publish in the future.

Co-authorship network of co-authors of Hitoshi Sakakibara

This figure shows the co-authorship network connecting the top 25 collaborators of Hitoshi Sakakibara. A scholar is included among the top collaborators of Hitoshi Sakakibara based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Hitoshi Sakakibara. Hitoshi Sakakibara is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Photosynthetic-Product–Dependent Activation of Plasma Membrane H+-ATPase and Nitrate Uptake in Arabidopsis Leaves 2022 ·Plant and Cell Physiology ·(unknown),Takamasa Suzuki,Takatoshi Kiba,Hitoshi Sakakibara,Toshinori Kinoshita	17
2	Root-specific Reduction of Cytokinin Perception Enhances Shoot Growth in Arabidopsis thaliana 2022 ·Plant and Cell Physiology ·(unknown),Mikiko Kojima,Yumiko Takebayashi,Takamasa Suzuki,Tsuyoshi Nakagawa,Hitoshi Sakakibara,Takushi Hachiya	3
3	The Maize Hairy Sheath Frayed1 ( Hsf1 ) Mutation Alters Leaf Patterning through Increased Cytokinin Signaling 2020 ·The Plant Cell ·Michael G. Muszynski,(unknown),(unknown),(unknown),(unknown),(unknown),(unknown),Hitoshi Sakakibara,(unknown),Sergey N. Lomin,Georgy A. Romanov,Subbiah Thamotharan,(unknown),Bailin Li,Norbert Brugière	37
4	SUPERMAN regulates floral whorl boundaries through control of auxin biosynthesis 2018 ·The EMBO Journal ·Yifeng Xu,Nathanaël Prunet,Eng‐Seng Gan,Yanbin Wang,(unknown),Frank Wellmer,Jiangbo Huang,Nobutoshi Yamaguchi,(unknown),Mikiko Kojima,Takatoshi Kiba,Hitoshi Sakakibara,Thomas Jack,Elliot M. Meyerowitz,Toshiro Ito	84
5	Temporal and spatial changes in gene expression, metabolite accumulation and phytohormone content in rice seedlings grown under drought stress conditions 2016 ·The Plant Journal ·Daisuke Todaka,Yu Zhao,Takuya Yoshida,(unknown),Satoshi Kidokoro,Junya Mizoi,(unknown),Yumiko Takebayashi,Mikiko Kojima,Hitoshi Sakakibara,Kiminori Toyooka,Mayuko Sato,Alisdair R. Fernie,Kazuo Shinozaki,Kazuko Yamaguchi‐Shinozaki	169
6	Transcriptional repressor PRR5 directly regulates clock-output pathways 2012 ·Proceedings of the National Academy of Sciences ·Norihito Nakamichi,Takatoshi Kiba,(unknown),Takamasa Suzuki,Takafumi Yamashino,Tetsuya Higashiyama,Hitoshi Sakakibara,Takeshi Mizuno	254
7	Genome-Wide Direct Target Analysis Reveals a Role for SHORT-ROOT in Root Vascular Patterning through Cytokinin Homeostasis 2011 ·PLANT PHYSIOLOGY ·Hongchang Cui,Yueling Hao,Mikhail Kovtun,Viktor Štolc,Xing‐Wang Deng,Hitoshi Sakakibara,Mikiko Kojima	64
8	LIGHT-REGULATED WD1 and PSEUDO-RESPONSE REGULATOR9 Form a Positive Feedback Regulatory Loop in the Arabidopsis Circadian Clock 2011 ·The Plant Cell ·Ying Wang,Jing-Fen Wu,Norihito Nakamichi,Hitoshi Sakakibara,Hong‐Gil Nam,Shu‐Hsing Wu	78
9	The COP1 Ortholog PPS Regulates the Juvenile–Adult and Vegetative–Reproductive Phase Changes in Rice 2011 ·The Plant Cell ·Nobuhiro Tanaka,Hironori Itoh,Naoki Sentoku,Mikiko Kojima,Hitoshi Sakakibara,Takeshi Izawa,Jun-Ichi Itoh,Yasuo Nagato	71
10	Analysis of Cytokinin Mutants and Regulation of Cytokinin Metabolic Genes Reveals Important Regulatory Roles of Cytokinins in Drought, Salt and Abscisic Acid Responses, and Abscisic Acid Biosynthesis breakdown → 2011 ·The Plant Cell ·Rie Nishiyama,Yasuko Watanabe,Yasunari Fujita,Dung Tien Le,Mikiko Kojima,Tomáš Werner,Radomı́ra Vaňková,Kazuko Yamaguchi‐Shinozaki,Kazuo Shinozaki,Tatsuo Kakimoto,Hitoshi Sakakibara,Thomas Schmülling,Lam‐Son Phan Tran	591
11	Involvement of Auxin and Brassinosteroid in the Regulation of Petiole Elongation under the Shade 2010 ·PLANT PHYSIOLOGY ·Toshiaki Kozuka,Junko Kobayashi,Gorou Horiguchi,Taku Demura,Hitoshi Sakakibara,Hirokazu Tsukaya,Akira Nagatani	160
12	PSEUDO-RESPONSE REGULATORS 9, 7, and 5 Are Transcriptional Repressors in the Arabidopsis Circadian Clock breakdown → 2010 ·The Plant Cell ·Norihito Nakamichi,Takatoshi Kiba,Rossana Henriques,Takeshi Mizuno,Nam‐Hai Chua,Hitoshi Sakakibara	469
13	Impact of clock-associated Arabidopsis pseudo-response regulators in metabolic coordination 2009 ·Proceedings of the National Academy of Sciences ·Atsushi Fukushima,Miyako Kusano,Norihito Nakamichi,Makoto Kobayashi,Naomi Hayashi,Hitoshi Sakakibara,Takeshi Mizuno,Kazuki Saito	215
14	Functional Analyses of LONELY GUY Cytokinin-Activating Enzymes Reveal the Importance of the Direct Activation Pathway in Arabidopsis 2009 ·The Plant Cell ·Takeshi Kuroha,Hiroki Tokunaga,Mikiko Kojima,Nanae Ueda,Takashi Ishida,Shingo Nagawa,Hiroo Fukuda,Keiko Sugimoto,Hitoshi Sakakibara	363
15	Targeted Degradation of PSEUDO-RESPONSE REGULATOR5 by an SCF ^ZTL Complex Regulates Clock Function and Photomorphogenesis in Arabidopsis thaliana 2007 ·The Plant Cell ·Takatoshi Kiba,Rossana Henriques,Hitoshi Sakakibara,Nam‐Hai Chua	216
16	The GID1-Mediated Gibberellin Perception Mechanism Is Conserved in the Lycophyte Selaginella moellendorffii but Not in the Bryophyte Physcomitrella patens 2007 ·The Plant Cell ·Ko Hirano,Masatoshi Nakajima,Kenji Asano,Tomoaki Nishiyama,Hitoshi Sakakibara,Mikiko Kojima,Etsuko Katoh,Hongyu Xiang,Takako Tanahashi,Mitsuyasu Hasebe,Jo Ann Banks,Motoyuki Ashikari,Hidemi Kitano,Miyako Ueguchi‐Tanaka,Makoto Matsuoka	166
17	Delayed leaf senescence induces extreme drought tolerance in a flowering plantbreakdown → 2007 ·Proceedings of the National Academy of Sciences ·Rosa M. Rivero,Mikiko Kojima,Amira Gepstein,Hitoshi Sakakibara,Ron Mittler,Shimon Gepstein,Eduardo Blumwald	672
18	Destination-Selective Long-Distance Movement of Phloem Proteins 2005 ·The Plant Cell ·Koh Aoki,Nobuo Suzui,Shu Fujimaki,Naoshi Dohmae,Keiko Yonekura‐Sakakibara,Toru Fujiwara,Hiroaki Hayashi,Tomoyuki Yamaya,Hitoshi Sakakibara	92
19	Cytokinin Oxidase Regulates Rice Grain Productionbreakdown → 2005 ·Science ·Motoyuki Ashikari,Hitoshi Sakakibara,Shaoyang Lin,Toshio Yamamoto,Tomonori Takashi,Asuka Nishimura,E. R. Angeles,Qian Qian,Hidemi Kitano,Makoto Matsuoka	1421
20	Agrobacterium tumefaciens increases cytokinin production in plastids by modifying the biosynthetic pathway in the host plant 2005 ·Proceedings of the National Academy of Sciences ·Hitoshi Sakakibara,Hiroyuki Kasahara,Nanae Ueda,Mikiko Kojima,Kentaro Takei,Shojiro Hishiyama,Tadao Asami,Kazunori Okada,Yuji Kamiya,Tomoyuki Yamaya,Shinjiro Yamaguchi	98

About Hitoshi Sakakibara

Hitoshi Sakakibara is a scholar working on Plant Science, Molecular Biology and Cell Biology, having authored 372 papers that have together received 31.7k indexed citations. Recurring topics across this work include Plant Molecular Biology Research (184 papers), Plant nutrient uptake and metabolism (93 papers) and Plant Reproductive Biology (92 papers). The work is most often cited by research in Plant Science (26.6k citations), Molecular Biology (15.9k citations) and Horticulture (106 citations). Hitoshi Sakakibara has collaborated with scholars based in Japan, United States and Germany. Frequent co-authors include Mikiko Kojima, Takatoshi Kiba, Kentaro Takei, Tatsuo Sugiyama, Tomoyuki Yamaya, Makoto Matsuoka, Kazuhiro Oiwa, Naoya Hirose, Motoyuki Ashikari and Nanae Ueda. Their work appears in journals such as Nature, Science and Proceedings of the National Academy of Sciences.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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