Ken‐ichiro Ishida

3.8k total citations
86 papers, 2.2k citations indexed

About

Ken‐ichiro Ishida is a scholar working on Molecular Biology, Ecology and Oceanography. According to data from OpenAlex, Ken‐ichiro Ishida has authored 86 papers receiving a total of 2.2k indexed citations (citations by other indexed papers that have themselves been cited), including 79 papers in Molecular Biology, 62 papers in Ecology and 22 papers in Oceanography. Recurrent topics in Ken‐ichiro Ishida's work include Protist diversity and phylogeny (76 papers), Microbial Community Ecology and Physiology (57 papers) and Genomics and Phylogenetic Studies (37 papers). Ken‐ichiro Ishida is often cited by papers focused on Protist diversity and phylogeny (76 papers), Microbial Community Ecology and Physiology (57 papers) and Genomics and Phylogenetic Studies (37 papers). Ken‐ichiro Ishida collaborates with scholars based in Japan, Canada and United States. Ken‐ichiro Ishida's co-authors include Beverley R. Green, Akinori Yabuki, Takashi Shiratori, Patrick J. Keeling, Thomas Cavalier‐Smith, John M. Archibald, Yuji Inagaki, Yoshiaki Hara, Matthew B. Rogers and S. Suzuki and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Nature Communications and PLoS ONE.

In The Last Decade

Ken‐ichiro Ishida

86 papers receiving 2.2k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ken‐ichiro Ishida Japan 25 1.9k 1.3k 366 248 239 86 2.2k
Javier del Campo Spain 30 1.8k 1.0× 1.9k 1.4× 548 1.5× 257 1.0× 224 0.9× 72 2.8k
Gwenaël Piganeau France 30 1.6k 0.8× 1.0k 0.8× 327 0.9× 236 1.0× 472 2.0× 53 2.5k
Marek Eliáš Czechia 29 1.8k 0.9× 761 0.6× 233 0.6× 310 1.3× 396 1.7× 83 2.4k
Évelyne Derelle France 24 902 0.5× 1.0k 0.8× 348 1.0× 227 0.9× 339 1.4× 39 1.6k
Eunsoo Kim United States 26 1.2k 0.6× 778 0.6× 265 0.7× 82 0.3× 370 1.5× 85 1.9k
Bianca Brahamsha United States 25 1.3k 0.7× 1.1k 0.9× 589 1.6× 433 1.7× 129 0.5× 36 2.1k
Charles J. O’Kelly United States 31 1.8k 0.9× 1.2k 0.9× 1.1k 3.0× 392 1.6× 204 0.9× 86 2.8k
Tsvetan R. Bachvaroff United States 29 1.4k 0.7× 1.1k 0.8× 737 2.0× 131 0.5× 195 0.8× 64 2.3k
Adrián Reyes‐Prieto Canada 21 1.4k 0.7× 792 0.6× 195 0.5× 221 0.9× 297 1.2× 44 1.7k
Eun Chan Yang South Korea 26 916 0.5× 1.1k 0.8× 1.0k 2.8× 157 0.6× 144 0.6× 68 2.0k

Countries citing papers authored by Ken‐ichiro Ishida

Since Specialization
Citations

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

Fields of papers citing papers by Ken‐ichiro Ishida

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ken‐ichiro Ishida

This figure shows the co-authorship network connecting the top 25 collaborators of Ken‐ichiro Ishida. A scholar is included among the top collaborators of Ken‐ichiro Ishida 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‐ichiro Ishida. Ken‐ichiro Ishida is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Ishida, Ken‐ichiro, et al.. (2025). Glissandra oviformis n. sp.: a novel predatory flagellate illuminates the character evolution within the eukaryotic clade CRuMs. Open Biology. 15(6). 250057–250057. 2 indexed citations
2.
Eglit, Yana, Takashi Shiratori, Jon Jerlström-Hultqvist, et al.. (2024). Meteora sporadica, a protist with incredible cell architecture, is related to Hemimastigophora. Current Biology. 34(2). 451–459.e6. 14 indexed citations
3.
Galindo, Luis Javier, Aaron A. Heiss, Guifré Torruella, et al.. (2023). One high quality genome and two transcriptome datasets for new species of Mantamonas, a deep-branching eukaryote clade. Scientific Data. 10(1). 603–603. 9 indexed citations
4.
Yubuki, Naoji, Guifré Torruella, Luis Javier Galindo, et al.. (2023). Molecular and morphological characterization of four new ancyromonad genera and proposal for an updated taxonomy of the Ancyromonadida. Journal of Eukaryotic Microbiology. 70(6). e12997–e12997. 4 indexed citations
5.
Kume, Keitaro, Takashi Shiratori, Yana Eglit, et al.. (2020). Barthelonids represent a deep-branching metamonad clade with mitochondrion-related organelles predicted to generate no ATP. Proceedings of the Royal Society B Biological Sciences. 287(1934). 20201538–20201538. 17 indexed citations
6.
Sakamoto, Hirokazu, Yoshihisa Hirakawa, Ken‐ichiro Ishida, et al.. (2018). Puromycin selection for stable transfectants of the oyster-infecting parasite Perkinsus marinus. Parasitology International. 69. 13–16. 6 indexed citations
7.
Matsuo, Mitsuhiro, Soichirou Satoh, Motomichi Matsuzaki, et al.. (2018). Characterization of spliced leader trans-splicing in a photosynthetic rhizarian amoeba, Paulinella micropora, and its possible role in functional gene transfer. PLoS ONE. 13(7). e0200961–e0200961. 7 indexed citations
8.
Kamikawa, Ryoma, Daniel Moog, Stefan Zauner, et al.. (2017). A Non-photosynthetic Diatom Reveals Early Steps of Reductive Evolution in Plastids. Molecular Biology and Evolution. 34(9). 2355–2366. 36 indexed citations
9.
Nakayama, Takeshi, Atsushi Nakamura, Akiko Yokoyama, et al.. (2014). Taxonomic study of a new eustigmatophycean alga, Vacuoliviride crystalliferum gen. et sp. nov.. Journal of Plant Research. 128(2). 249–257. 16 indexed citations
10.
Kashiyama, Yuichiro, Akiko Yokoyama, Yusuke Kinoshita, et al.. (2012). Ubiquity and quantitative significance of detoxification catabolism of chlorophyll associated with protistan herbivory. Proceedings of the National Academy of Sciences. 109(43). 17328–17335. 45 indexed citations
11.
Yabuki, Akinori, Ema E. Chao, Ken‐ichiro Ishida, & Thomas Cavalier‐Smith. (2011). Microheliella maris (Microhelida ord. n.), an Ultrastructurally Highly Distinctive New Axopodial Protist Species and Genus, and the Unity of Phylum Heliozoa. Protist. 163(3). 356–388. 34 indexed citations
12.
Yabuki, Akinori & Ken‐ichiro Ishida. (2011). Mataza hastifera n. g., n. sp.: A Possible New Lineage in the Thecofilosea (Cercozoa). Journal of Eukaryotic Microbiology. 58(2). 94–102. 21 indexed citations
13.
Bass, David, Ema E. Chao, Sergey I. Nikolaev, et al.. (2008). Phylogeny of Novel Naked Filose and Reticulose Cercozoa: Granofilosea cl. n. and Proteomyxidea Revised. Protist. 160(1). 75–109. 132 indexed citations
14.
Nelson‐Flower, Martha J., Yunkun Dang, Zhaoduo Zhang, et al.. (2007). Identification and transcription of transfer RNA genes in dinoflagellate plastid minicircles. Gene. 392(1-2). 291–298. 25 indexed citations
15.
Ishida, Ken‐ichiro, et al.. (2005). Reevaluation of the Evolutionary Position of Opalinids Based on 18S rDNA,and α- and β-Tubulin Gene Phylogenies. Journal of Molecular Evolution. 60(6). 695–705. 16 indexed citations
16.
Archibald, John M., et al.. (2003). Lateral gene transfer and the evolution of plastid-targeted proteins in the secondary plastid-containing alga Bigelowiella natans. Proceedings of the National Academy of Sciences. 100(13). 7678–7683. 188 indexed citations
17.
Chaal, Balbir K., Ken‐ichiro Ishida, & Beverley R. Green. (2003). A thylakoidal processing peptidase from the heterokont alga Heterosigma akashiwo. Plant Molecular Biology. 52(2). 463–472. 10 indexed citations
18.
19.
Ishida, Ken‐ichiro & Beverley R. Green. (2002). Second- and third-hand chloroplasts in dinoflagellates: Phylogeny of oxygen-evolving enhancer 1 (PsbO) protein reveals replacement of a nuclear-encoded plastid gene by that of a haptophyte tertiary endosymbiont. Proceedings of the National Academy of Sciences. 99(14). 9294–9299. 121 indexed citations
20.
Ishida, Ken‐ichiro, et al.. (1997). The Origin of Chlorarachniophyte Plastids, as Inferred from Phylogenetic Comparisons of Amino Acid Sequences of EF-Tu. Journal of Molecular Evolution. 45(6). 682–687. 61 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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