Ken Ishimaru

3.4k total citations · 1 hit paper
65 papers, 2.5k citations indexed

About

Ken Ishimaru is a scholar working on Plant Science, Genetics and Molecular Biology. According to data from OpenAlex, Ken Ishimaru has authored 65 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 49 papers in Plant Science, 24 papers in Genetics and 18 papers in Molecular Biology. Recurrent topics in Ken Ishimaru's work include Rice Cultivation and Yield Improvement (26 papers), Genetic Mapping and Diversity in Plants and Animals (22 papers) and GABA and Rice Research (12 papers). Ken Ishimaru is often cited by papers focused on Rice Cultivation and Yield Improvement (26 papers), Genetic Mapping and Diversity in Plants and Animals (22 papers) and GABA and Rice Research (12 papers). Ken Ishimaru collaborates with scholars based in Japan, Australia and China. Ken Ishimaru's co-authors include Takayuki Kashiwagi, Naoki Hirotsu, Yuka Madoka, Ryu Ohsugi, Kazuhiro Ujiie, Kiyomi Ono, Naohiro Aoki, Eiji Togawa, Naomi Murakami and Kenta Ono and has published in prestigious journals such as Nature Genetics, PLoS ONE and PLANT PHYSIOLOGY.

In The Last Decade

Ken Ishimaru

64 papers receiving 2.4k citations

Hit 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.

Loss of function of the IAA-glucose hydrolase gene TGW6 enhances rice grain weight and increases yield

2013 472 citations Ken Ishimaru, Naoki Hirotsu et al. Nature Genetics profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Ken Ishimaru Japan	27	2.2k	928	530	392	89	65	2.5k
Takayuki Kashiwagi Japan	19	1.5k 0.7×	685 0.7×	474 0.9×	177 0.5×	17 0.2×	27	1.6k
Santosh Deshpande India	19	1.5k 0.7×	829 0.9×	590 1.1×	264 0.7×	64 0.7×	58	1.9k
Ahmad M. Alqudah Germany	27	2.4k 1.1×	622 0.7×	620 1.2×	332 0.8×	47 0.5×	99	2.7k
Gilles Charmet France	19	1.5k 0.7×	469 0.5×	504 1.0×	79 0.2×	110 1.2×	22	1.8k
Paul A. Counce United States	20	1.7k 0.8×	236 0.3×	272 0.5×	114 0.3×	55 0.6×	54	1.8k
P.H. Zaidi India	26	1.8k 0.8×	624 0.7×	730 1.4×	110 0.3×	97 1.1×	88	2.1k
J. N. Rutger United States	26	2.1k 0.9×	683 0.7×	210 0.4×	422 1.1×	24 0.3×	104	2.3k
Roberto J. Peña Mexico	28	2.0k 0.9×	557 0.6×	633 1.2×	98 0.3×	73 0.8×	56	2.2k
Alan Cruickshank Australia	18	803 0.4×	396 0.4×	339 0.6×	168 0.4×	48 0.5×	54	1.0k
R. Michaud Canada	23	742 0.3×	271 0.3×	1.1k 2.0×	162 0.4×	73 0.8×	72	1.8k

Countries citing papers authored by Ken Ishimaru

Since Specialization

Citations

This map shows the geographic impact of Ken Ishimaru'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 Ken Ishimaru with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ken Ishimaru more than expected).

Fields of papers citing papers by Ken Ishimaru

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ken Ishimaru. 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 Ken Ishimaru. The network helps show where Ken Ishimaru may publish in the future.

Co-authorship network of co-authors of Ken Ishimaru

This figure shows the co-authorship network connecting the top 25 collaborators of Ken Ishimaru. A scholar is included among the top collaborators of Ken Ishimaru 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 Ken Ishimaru. Ken Ishimaru 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

Ikeda, Kazuyoshi, et al.. (2026). Chemical inhibition of INO1 reduces phytic acid in rice and wheat grains for enhanced micronutrient bioavailability. Nature Food. 7(2). 163–173. 1 indexed citations

Suzuki, Nobuhiro, Kazuyoshi Ikeda, Satoru Nagatoishi, et al.. (2024). THOUSAND-GRAIN WEIGHT 6, which is an IAA-glucose hydrolase, preferentially recognizes the structure of the indole ring. Scientific Reports. 14(1). 6778–6778. 4 indexed citations

Okuda, Makoto, Ken Ishimaru, Makoto Uchikawa, et al.. (2022). GUIDELINES FOR PRE-TRANSFUSION COMPATIBILITY PROCEDURES IN BLOOD TRANSFUSION LABORATORIES IN JAPAN (4th EDITION). Japanese Journal of Transfusion and Cell Therapy. 68(6). 539–556. 1 indexed citations

Inagaki, Noritoshi, et al.. (2021). A Rice Ancestral Genetic Resource Conferring Ideal Plant Shapes for Vegetative Growth and Weed Suppression. Frontiers in Plant Science. 12. 748531–748531. 10 indexed citations

Kusagawa, Shigeru, Ai Kawana‐Tachikawa, Keiji Matsubayashi, et al.. (2021). Evaluation of Geenius HIV-1/2 Confirmatory Assay for the confirmatory and differential diagnosis of HIV-1/HIV-2 in Japan and reliability of the Geenius Reader in the diagnosis of HIV-2. BMC Infectious Diseases. 21(1). 569–569. 2 indexed citations

Takeshita, Akihiro, Hiroko Watanabe, Chiaki Yamada, et al.. (2020). Erythrocyte Alloimmunity and Genetic Variance: Results from the Collaborative Study of Alloimmunity to Antigen Diversity in Asian Populations (All ADP). Transfusion and Apheresis Science. 59(5). 102944–102944. 6 indexed citations

Murayama, Asako, Haruka Momose, N. Yamada, et al.. (2019). Evaluation of in vitro screening and diagnostic kits for hepatitis B virus infection. Journal of Clinical Virology. 117. 37–42. 12 indexed citations

Hirotsu, Naoki, et al.. (2017). Partial loss-of-function of NAL1 alters canopy photosynthesis by changing the contribution of upper and lower canopy leaves in rice. Scientific Reports. 7(1). 15958–15958. 16 indexed citations

Ujiie, Kazuhiro, Toshio Yamamoto, Masahiro Yano, & Ken Ishimaru. (2015). Genetic factors determining varietal differences in characters affecting yield between two rice (Oryza sativa L.) varieties, Koshihikari and IR64. Genetic Resources and Crop Evolution. 63(1). 97–123. 14 indexed citations

10.

Okubo, Takashi, Dongyan Liu, Hirohito Tsurumaru, et al.. (2015). Elevated atmospheric CO2 levels affect community structure of rice root-associated bacteria. Frontiers in Microbiology. 6. 136–136. 39 indexed citations

11.

Ishimaru, Ken, Naoki Hirotsu, Yuka Madoka, et al.. (2013). Loss of function of the IAA-glucose hydrolase gene TGW6 enhances rice grain weight and increases yield. Nature Genetics. 45(6). 707–711. 472 indexed citations breakdown →

12.

Ishimaru, Ken, Naoki Hirotsu, Takayuki Kashiwagi, et al.. (2008). Overexpression of a Maize SPS Gene Improves Yield Characters of Potato under Field Conditions. Plant Production Science. 11(1). 104–107. 41 indexed citations

13.

Ishimaru, Ken, Naoki Hirotsu, Yuka Madoka, & Takayuki Kashiwagi. (2007). Quantitative trait loci for sucrose, starch, and hexose accumulation before heading in rice. Plant Physiology and Biochemistry. 45(10-11). 799–804. 28 indexed citations

14.

Hirotsu, Naoki, Takayuki Kashiwagi, Yuka Madoka, & Ken Ishimaru. (2007). Time-related identification of chromosome regions affecting plant elongation in rice (Oryza sativa L.). Plant Physiology and Biochemistry. 46(4). 517–523. 2 indexed citations

15.

Ono, Kiyomi & Ken Ishimaru. (2006). Sucrose-phosphate Synthase : A Key Enzyme of Sucrose Synthesis in Plants. Japanese Journal of Crop Science. 75(3). 241–248. 3 indexed citations

16.

Ishimaru, Ken, et al.. (2004). A CASE OF DELAYED HEMOLYTIC TRANSFUSION REACTION PROBABLY CAUSED BY A PRIMARY IMMUNE RESPONSE. Journal of the Japan Society of Blood Transfusion. 50(6). 768–773. 4 indexed citations

17.

Seneweera, Saman, Oula Ghannoum, Jann P. Conroy, et al.. (2002). Changes in sourcesink relations during development influence photosynthetic acclimation of rice to free air CO 2 enrichment (FACE). Australian Journal of Plant Physiology. 29(8). 947–955. 58 indexed citations

18.

Ueno, Osamu & Ken Ishimaru. (2002). Effects of an inhibitor of phosphoenolpyruvate carboxylase on photosynthesis of the terrestrial forms of amphibious Eleocharis species. Photosynthesis Research. 71(3). 265–272. 6 indexed citations

19.

Sentoku, Naoki, Mitsutaka Taniguchi, T. Sugiyama, et al.. (2000). Analysis of the transgenic tobacco plants expressing Panicum miliaceum aspartate aminotransferase genes. Plant Cell Reports. 19(6). 598–603. 22 indexed citations

20.

Ono, Kiyomi, Ken Ishimaru, Naohiro Aoki, et al.. (1999). Characterization of a Maize Sucrose–phosphate Synthase Protein and Its Effect on Carbon Partitioning in Transgenic Rice Plants. Plant Production Science. 2(3). 172–177. 29 indexed citations

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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