Ryo Onuma

737 total citations
27 papers, 479 citations indexed

About

Ryo Onuma is a scholar working on Molecular Biology, Oceanography and Ecology. According to data from OpenAlex, Ryo Onuma has authored 27 papers receiving a total of 479 indexed citations (citations by other indexed papers that have themselves been cited), including 20 papers in Molecular Biology, 14 papers in Oceanography and 14 papers in Ecology. Recurrent topics in Ryo Onuma's work include Microbial Community Ecology and Physiology (14 papers), Protist diversity and phylogeny (14 papers) and Marine and coastal ecosystems (12 papers). Ryo Onuma is often cited by papers focused on Microbial Community Ecology and Physiology (14 papers), Protist diversity and phylogeny (14 papers) and Marine and coastal ecosystems (12 papers). Ryo Onuma collaborates with scholars based in Japan, United States and United Kingdom. Ryo Onuma's co-authors include Takeo Horiguchi, Kyoko Hagino, Shin‐ya Miyagishima, Masanobu Kawachi, Takayuki Fujiwara, Shunsuke Hirooka, Yu Kanesaki, Hirofumi Yoshikawa, Ryudo Ohbayashi and Yuu Hirose and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Nature Communications and PLoS ONE.

In The Last Decade

Ryo Onuma

27 papers receiving 473 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Ryo Onuma Japan 12 271 212 175 80 54 27 479
Sébastien Colin France 15 260 1.0× 287 1.4× 310 1.8× 89 1.1× 34 0.6× 22 682
Haruyo Yamaguchi Japan 13 240 0.9× 256 1.2× 185 1.1× 87 1.1× 160 3.0× 53 557
Seung Won Nam South Korea 14 308 1.1× 404 1.9× 359 2.1× 122 1.5× 164 3.0× 43 673
Paola Sist Italy 11 141 0.5× 132 0.6× 243 1.4× 60 0.8× 83 1.5× 29 509
Sung Mi Cho South Korea 12 234 0.9× 178 0.8× 113 0.6× 82 1.0× 29 0.5× 22 418
Martin J. Szul United States 3 229 0.8× 330 1.6× 187 1.1× 46 0.6× 66 1.2× 3 455
G. B. Bremer United Kingdom 11 179 0.7× 133 0.6× 208 1.2× 87 1.1× 31 0.6× 14 534
Javier Paz-Yepes France 12 336 1.2× 233 1.1× 159 0.9× 189 2.4× 57 1.1× 12 536
Atsushi Mitsutani Japan 11 169 0.6× 304 1.4× 199 1.1× 98 1.2× 180 3.3× 15 533
R. N. Ivanovsky Russia 15 467 1.7× 308 1.5× 47 0.3× 104 1.3× 78 1.4× 42 691

Countries citing papers authored by Ryo Onuma

Since Specialization
Citations

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

Fields of papers citing papers by Ryo Onuma

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Ryo Onuma

This figure shows the co-authorship network connecting the top 25 collaborators of Ryo Onuma. A scholar is included among the top collaborators of Ryo Onuma 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 Ryo Onuma. Ryo Onuma 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.
Onuma, Ryo, et al.. (2025). Algal Symbiont Diversity and Host Fitness Variation in Amoebozoan Photosymbiosis. Journal of Eukaryotic Microbiology. 72(3). e70008–e70008. 1 indexed citations
2.
Yagisawa, Fumi, Takayuki Fujiwara, Shota Yamashita, et al.. (2024). A fusion protein of polyphosphate kinase 1 (PPK1) and a Nudix hydrolase is involved in inorganic polyphosphate accumulation in the unicellular red alga Cyanidioschyzon merolae. Plant Molecular Biology. 115(1). 9–9. 1 indexed citations
3.
Onuma, Ryo, et al.. (2023). Horizontally Acquired Nitrate Reductase Realized Kleptoplastic Photoautotrophy of Rapaza viridis. Plant and Cell Physiology. 64(9). 1082–1090. 2 indexed citations
4.
Hirakawa, Yoshihisa, Akinori Yabuki, Yuichiro Kashiyama, et al.. (2020). Inventory and Evolution of Mitochondrion-localized Family A DNA Polymerases in Euglenozoa. Pathogens. 9(4). 257–257. 7 indexed citations
5.
Wada, Yoichi, Atsuo Kikuchi, Naoki Shimizu, et al.. (2020). Metabolic and pathologic profiles of human LSS deficiency recapitulated in mice. PLoS Genetics. 16(2). e1008628–e1008628. 25 indexed citations
6.
Ohbayashi, Ryudo, Shunsuke Hirooka, Ryo Onuma, et al.. (2020). Evolutionary Changes in DnaA-Dependent Chromosomal Replication in Cyanobacteria. Frontiers in Microbiology. 11. 786–786. 11 indexed citations
7.
Onuma, Ryo, et al.. (2020). Five Non-motile Dinotom Dinoflagellates of the Genus Dinothrix. Frontiers in Plant Science. 11. 591050–591050. 8 indexed citations
8.
Bolton, John J., Rosa Trobajo, David G. Mann, et al.. (2019). Discovery of a kleptoplastic ‘dinotom’ dinoflagellate and the unique nuclear dynamics of converting kleptoplastids to permanent plastids. Scientific Reports. 9(1). 10474–10474. 30 indexed citations
9.
Onuma, Ryo, Shunsuke Hirooka, Yu Kanesaki, et al.. (2019). Responses of unicellular predators to cope with the phototoxicity of photosynthetic prey. Nature Communications. 10(1). 5606–5606. 15 indexed citations
10.
11.
Onuma, Ryo, Neha Mishra, & Shin‐ya Miyagishima. (2017). Regulation of chloroplast and nucleomorph replication by the cell cycle in the cryptophyte Guillardia theta. Scientific Reports. 7(1). 2345–2345. 8 indexed citations
12.
Shimizu, Naoki, Ryo Onuma, Yurika Otoki, et al.. (2017). Analysis of Lutein in Mugwort (<i>Artemisia princeps</i> Pamp.) Paste and Evaluation of Manufacturing Processes. Journal of Oleo Science. 66(11). 1257–1262. 2 indexed citations
13.
Hirooka, Shunsuke, Yuu Hirose, Yu Kanesaki, et al.. (2017). Acidophilic green algal genome provides insights into adaptation to an acidic environment. Proceedings of the National Academy of Sciences. 114(39). E8304–E8313. 98 indexed citations
14.
Onuma, Ryo & Takeo Horiguchi. (2016). Specificity of Chroomonas (Cryptophyceae) as a source of kleptochloroplast for Nusuttodinium aeruginosum (Dinophyceae). Phycological Research. 64(1). 35–43. 2 indexed citations
15.
Onuma, Ryo, Takeshi Naganuma, Tomohisa Ogawa, et al.. (2015). Antioxidant Properties of Tripeptides Revealed by a Comparison of Six Different Assays. Food Science and Technology Research. 21(5). 695–704. 28 indexed citations
16.
17.
Nakagawa, Kiyotaka, Taiki Miyazawa, Ryo Onuma, et al.. (2015). Distribution of &beta;-carotene-encapsulated polysorbate 80-coated poly(D, L-lactide-co-glycolide) nanoparticles in rodent tissues following intravenous administration. International Journal of Nanomedicine. 10. 7223–7223. 11 indexed citations
18.
Sato, Shingo, et al.. (2014). Evaluation of glucose-linked nitroxide radicals for use as an in vivo spin-label probe. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 124. 322–327. 3 indexed citations
19.
20.
Hagino, Kyoko, Ryo Onuma, Masanobu Kawachi, & Takeo Horiguchi. (2013). Discovery of an Endosymbiotic Nitrogen-Fixing Cyanobacterium UCYN-A in Braarudosphaera bigelowii (Prymnesiophyceae). PLoS ONE. 8(12). e81749–e81749. 88 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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