Masachika Okamura

655 total citations
16 papers, 476 citations indexed

About

Masachika Okamura is a scholar working on Molecular Biology, Plant Science and Biochemistry. According to data from OpenAlex, Masachika Okamura has authored 16 papers receiving a total of 476 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Molecular Biology, 12 papers in Plant Science and 5 papers in Biochemistry. Recurrent topics in Masachika Okamura's work include Plant Gene Expression Analysis (8 papers), Plant tissue culture and regeneration (7 papers) and Phytochemicals and Antioxidant Activities (5 papers). Masachika Okamura is often cited by papers focused on Plant Gene Expression Analysis (8 papers), Plant tissue culture and regeneration (7 papers) and Phytochemicals and Antioxidant Activities (5 papers). Masachika Okamura collaborates with scholars based in Japan and United States. Masachika Okamura's co-authors include Yoshihiro Hase, Atsushi Tanaka, Nobuhiro Sasaki, Yoshihiro Ozeki, Masahiro Ohtsuka, Naoyuki Umemoto, Naoko Yasuno, Naoya Shikazono, Yuki Matsuba and Yutaka Abe and has published in prestigious journals such as The Plant Cell, Biochemical and Biophysical Research Communications and Plant and Cell Physiology.

In The Last Decade

Masachika Okamura

16 papers receiving 457 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Masachika Okamura Japan 13 385 280 136 33 25 16 476
Blue Plunkett New Zealand 13 469 1.2× 424 1.5× 188 1.4× 36 1.1× 24 1.0× 16 632
Shibing Tian China 13 567 1.5× 434 1.6× 213 1.6× 43 1.3× 21 0.8× 21 713
Koh‐ichi Kadowaki Japan 10 393 1.0× 336 1.2× 63 0.5× 40 1.2× 52 2.1× 11 577
Yukuo Li China 11 349 0.9× 284 1.0× 118 0.9× 35 1.1× 11 0.4× 30 503
Lidia Lozano Italy 8 294 0.8× 321 1.1× 164 1.2× 66 2.0× 11 0.4× 16 495
Roberta Calafiore Italy 8 136 0.4× 247 0.9× 104 0.8× 36 1.1× 15 0.6× 9 358
Tomomi Tsuda Japan 5 350 0.9× 240 0.9× 184 1.4× 30 0.9× 17 0.7× 9 443
Haejeen Bang United States 13 280 0.7× 401 1.4× 146 1.1× 54 1.6× 14 0.6× 21 557
Riru Zheng China 12 308 0.8× 205 0.7× 84 0.6× 75 2.3× 35 1.4× 19 436
Zhande Liu China 9 346 0.9× 229 0.8× 176 1.3× 43 1.3× 23 0.9× 12 450

Countries citing papers authored by Masachika Okamura

Since Specialization
Citations

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

Fields of papers citing papers by Masachika Okamura

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masachika Okamura

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

All Works

16 of 16 papers shown
1.
Okamura, Masachika, Yoshihiro Hase, Yoshiya Furusawa, & Atsushi Tanaka. (2014). Tissue-dependent somaclonal mutation frequencies and spectra enhanced by ion beam irradiation in chrysanthemum. Euphytica. 202(3). 333–343. 17 indexed citations
2.
Sasaki, Nobuhiro, Yuki Matsuba, Yutaka Abe, et al.. (2013). Recent advances in understanding the anthocyanin modification steps in carnation flowers. Scientia Horticulturae. 163. 37–45. 25 indexed citations
3.
Okamura, Masachika, Masayoshi Nakayama, Naoyuki Umemoto, et al.. (2013). Crossbreeding of a metallic color carnation and diversification of the peculiar coloration by ion-beam irradiation. Euphytica. 191(1). 45–56. 28 indexed citations
4.
Okamura, Masachika, et al.. (2012). Breeding glittering carnations by an efficient mutagenesis syst. Plant Biotechnology. 29(3). 209–214. 8 indexed citations
5.
Sasaki, Nobuhiro, Yuzo Nishizaki, Yasuhiro Uchida, et al.. (2012). Identification of the <i>glutathione</i> S-<i>transferase</i> gene responsible for flower color intensity in carnations. Plant Biotechnology. 29(3). 223–227. 40 indexed citations
6.
Nishizaki, Yuzo, Yuki Matsuba, Emi Okamoto, et al.. (2011). Structure of the acyl-glucose-dependent anthocyanin 5-O-glucosyltransferase gene in carnations and its disruption by transposable elements in some varieties. Molecular Genetics and Genomics. 286(5-6). 383–394. 25 indexed citations
7.
Matsuba, Yuki, Nobuhiro Sasaki, Masayuki Tera, et al.. (2010). A Novel Glucosylation Reaction on Anthocyanins Catalyzed by Acyl-Glucose–Dependent Glucosyltransferase in the Petals of Carnation and Delphinium . The Plant Cell. 22(10). 3374–3389. 102 indexed citations
8.
Iwashina, Tsukasa, Masaatsu Yamaguchi, Masayoshi Nakayama, et al.. (2010). Kaempferol Glycosides in the Flowers of Carnation and their Contribution to the Creamy White Flower Color. Natural Product Communications. 5(12). 1903–6. 23 indexed citations
9.
Hase, Yoshihiro, et al.. (2010). Efficient induction of flower-color mutants by ion beam irradiation in petunia seedlings treated with high sucrose concentration. Plant Biotechnology. 27(1). 99–103. 28 indexed citations
10.
Abe, Yutaka, Masayuki Tera, Nobuhiro Sasaki, et al.. (2008). Detection of 1-O-malylglucose: Pelargonidin 3-O-glucose-6′′-O-malyltransferase activity in carnation (Dianthus caryophyllus). Biochemical and Biophysical Research Communications. 373(4). 473–477. 25 indexed citations
11.
12.
Okamura, Masachika, Naoyuki Umemoto, Toshihiro Toguri, et al.. (2006). Flower Breeding by Quantum Beam Technology and their Commercialization. 321–322. 1 indexed citations
13.
Okamura, Masachika, et al.. (2006). Advances of mutagenesis in flowers and their industrialization. Medical Entomology and Zoology. 1. 619–628. 11 indexed citations
14.
Ogawa, Toshiya, Toshihiro Toguri, Hiroshi Kudoh, et al.. (2005). Double-stranded RNA-specific Ribonuclease Confers Tolerance against <i>Chrysanthemum Stunt Viroid</i> and <i>Tomato Spotted Wilt Virus</i> in Transgenic Chrysanthemum Plants. Breeding Science. 55(1). 49–55. 20 indexed citations
15.
Okamura, Masachika, Naoko Yasuno, Masahiro Ohtsuka, et al.. (2003). Wide variety of flower-color and -shape mutants regenerated from leaf cultures irradiated with ion beams. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms. 206. 574–578. 94 indexed citations
16.
Okamura, Masachika, Toshio Hayashi, & Sadami Miyazaki. (1984). Inhibiting Effect of Ammonium Ion in Protoplast Culture of Some Asteraceae Plants. Plant and Cell Physiology. 16 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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