Takeshi Ohama

2.3k total citations
72 papers, 1.9k citations indexed

About

Takeshi Ohama is a scholar working on Molecular Biology, Ecology and Renewable Energy, Sustainability and the Environment. According to data from OpenAlex, Takeshi Ohama has authored 72 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 57 papers in Molecular Biology, 20 papers in Ecology and 14 papers in Renewable Energy, Sustainability and the Environment. Recurrent topics in Takeshi Ohama's work include RNA and protein synthesis mechanisms (22 papers), Genomics and Phylogenetic Studies (21 papers) and Algal biology and biofuel production (14 papers). Takeshi Ohama is often cited by papers focused on RNA and protein synthesis mechanisms (22 papers), Genomics and Phylogenetic Studies (21 papers) and Algal biology and biofuel production (14 papers). Takeshi Ohama collaborates with scholars based in Japan, United States and Indonesia. Takeshi Ohama's co-authors include Syozo Osawa, Tomohito Yamasaki, Thomas H. Jukes, Kimitsuna Watanabe, S. Osawa, Yoshitaka Bessho, Yuji Inagaki, Akira Muto, Fumiaki Yamao and Kazuo Watanabe and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Nucleic Acids Research and Journal of Biological Chemistry.

In The Last Decade

Takeshi Ohama

71 papers receiving 1.8k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Takeshi Ohama Japan 28 1.4k 398 306 223 176 72 1.9k
Jean-Michel Escoubas France 24 1.0k 0.7× 347 0.9× 179 0.6× 167 0.7× 359 2.0× 46 2.2k
Koichi Yoshinaga Japan 17 898 0.6× 275 0.7× 91 0.3× 169 0.8× 245 1.4× 46 1.4k
Wolfgang Löffelhardt Austria 24 1.7k 1.2× 604 1.5× 397 1.3× 108 0.5× 499 2.8× 75 2.0k
R. Schmitt Germany 24 908 0.7× 370 0.9× 112 0.4× 488 2.2× 480 2.7× 46 1.7k
Susanne Penny Canada 13 883 0.6× 422 1.1× 103 0.3× 143 0.6× 148 0.8× 21 1.2k
Yasuko Kaneko Japan 26 1.1k 0.8× 151 0.4× 238 0.8× 84 0.4× 969 5.5× 107 2.0k
Nicolas J. Tourasse France 23 1.7k 1.2× 600 1.5× 204 0.7× 473 2.1× 194 1.1× 51 2.0k
Steven D. Schwartzbach United States 26 1.5k 1.1× 367 0.9× 464 1.5× 67 0.3× 183 1.0× 74 1.8k
Ilka Haferkamp Germany 27 1.2k 0.8× 185 0.5× 139 0.5× 49 0.2× 635 3.6× 44 1.7k
Évelyne Derelle France 24 902 0.7× 1.0k 2.6× 227 0.7× 73 0.3× 339 1.9× 39 1.6k

Countries citing papers authored by Takeshi Ohama

Since Specialization
Citations

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

Fields of papers citing papers by Takeshi Ohama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Takeshi Ohama

This figure shows the co-authorship network connecting the top 25 collaborators of Takeshi Ohama. A scholar is included among the top collaborators of Takeshi Ohama 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 Takeshi Ohama. Takeshi Ohama 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.
Han, Lu, Hao Zhang, Xi Xie, et al.. (2023). Enhanced triacyclglycerols and starch synthesis in Chlamydomonas stimulated by the engineered biodegradable nanoparticles. Applied Microbiology and Biotechnology. 107(2-3). 971–983. 8 indexed citations
2.
Ohama, Takeshi, et al.. (2020). Initial study of polymer-based nanoparticles effect on carotenogenesis of Haematococcus lacustris. IOP Conference Series Earth and Environmental Science. 457(1). 12035–12035.
3.
Miyasaka, Hitoshi, Satoshi Tanaka, Takeshi Ohama, et al.. (2016). Is chloroplastic class IIA aldolase a marine enzyme?. The ISME Journal. 10(11). 2767–2772. 2 indexed citations
4.
Yamasaki, Tomohito, et al.. (2016). UV-mediated Chlamydomonas mutants with enhanced nuclear transgene expression by disruption of DNA methylation-dependent and independent silencing systems. Plant Molecular Biology. 92(6). 629–641. 26 indexed citations
5.
Kong, Fantao, Tomohito Yamasaki, Liyuan Hou, et al.. (2015). Robust expression of heterologous genes by selection marker fusion system in improved Chlamydomonas strains. Journal of Bioscience and Bioengineering. 120(3). 239–245. 34 indexed citations
6.
Hou, Liyuan, Hyunsun Park, Shigeru Okada, & Takeshi Ohama. (2013). Release of single cells from the colonial oil-producing alga Botryococcus braunii by chemical treatments. PROTOPLASMA. 251(1). 191–199. 12 indexed citations
7.
Yamasaki, Tomohito & Takeshi Ohama. (2010). Involvement of Elongin C in the spread of repressive histone modifications. The Plant Journal. 65(1). 51–61. 13 indexed citations
8.
Kawai, Hiroshi, et al.. (2008). Recurrent invasion of mitochondrial group II introns in specimens of Pylaiella littoralis (brown alga), collected worldwide. Current Genetics. 53(4). 207–216. 12 indexed citations
9.
Yamasaki, Tomohito, et al.. (2006). Degenerated recognition property of a mitochondrial homing enzyme in the unicellular green alga Chlamydomonas smithii. Plant Molecular Biology. 62(1-2). 141–150. 2 indexed citations
10.
Yamasaki, Tomohito, et al.. (2005). Shared molecular characteristics of successfully transformed mitochondrial genomes in Chlamydomonas reinhardtii. Plant Molecular Biology. 58(4). 515–527. 19 indexed citations
11.
Watanabe, Kazuo & Takeshi Ohama. (2001). Regular Spliceosomal Introns Are Invasive in Chlamydomonas reinhardtii: 15 Introns in the Recently Relocated Mitochondrial cox2 and cox3 Genes. Journal of Molecular Evolution. 53(4-5). 333–339. 29 indexed citations
12.
Watanabe, Kazuo, et al.. (1999). Comprehensive molecular phylogenetic analysis of a heterokont alga (NIES 548) using genes from all three cellular compartments. Phycological Research. 47(3). 225–231. 3 indexed citations
13.
Bessho, Yoshitaka, Satoru Tamura, Hidetaka Hori, et al.. (1997). Planarian mitochondria sequence heterogeneity: relationships between the type of cytochrome c oxidase subunit I gene sequence, karyotype and genital organ. Molecular Ecology. 6(2). 129–136. 7 indexed citations
14.
Inagaki, Yuji, et al.. (1997). A deviant mitochondrial genetic code in prymnesiophytes (yellow-algae): UGA codon for tryptophan. Current Genetics. 32(4). 296–299. 20 indexed citations
15.
Su, Zhi‐Hui, Osamu Tominaga, Takeshi Ohama, et al.. (1996). Parallel evolution in radiation ofOhomopterus ground beetles inferred from mitochondrial ND5 gene sequences. Journal of Molecular Evolution. 43(6). 662–671. 37 indexed citations
16.
Ohama, Takeshi, et al.. (1996). UAG is a sense codon in several chlorophycean mitochondria. Current Genetics. 30(1). 29–33. 43 indexed citations
17.
Inagaki, Yuji, Atsushi Kojima, Yoshitaka Bessho, et al.. (1995). Translation of Synonymous Codons in Family Boxes byMycoplasma capricolumtRNAs with Unmodified Uridine or Adenosine at the First Anticodon Position. Journal of Molecular Biology. 251(4). 486–492. 45 indexed citations
18.
Ohama, Takeshi, et al.. (1993). Unassigned or Nonsense Codons in Micrococcus luteus. Journal of Molecular Biology. 230(1). 51–56. 24 indexed citations
19.
Ohama, Takeshi, Tsutomu Suzuki, Miki Mori, et al.. (1993). Non-universal decoding of the leucine codon CUG in severalCandidaspecies. Nucleic Acids Research. 21(17). 4039–4045. 150 indexed citations
20.
Ohama, Takeshi, et al.. (1990). Nucleotide sequences of nine tRNA genes fromMicrococcus luteus. Nucleic Acids Research. 18(23). 7154–7154. 1 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Jean-Michel Escoubas Breakdown of academic impact, for papers by Koichi Yoshinaga Breakdown of academic impact, for papers by Wolfgang Löffelhardt Breakdown of academic impact, for papers by R. Schmitt Breakdown of academic impact, for papers by Susanne Penny Breakdown of academic impact, for papers by Yasuko Kaneko Breakdown of academic impact, for papers by Nicolas J. Tourasse Breakdown of academic impact, for papers by Steven D. Schwartzbach Breakdown of academic impact, for papers by Ilka Haferkamp Breakdown of academic impact, for papers by Évelyne Derelle
Rankless by CCL
2026