Masao Hirotani

2.2k total citations
60 papers, 1.7k citations indexed

About

Masao Hirotani is a scholar working on Molecular Biology, Pharmacology and Plant Science. According to data from OpenAlex, Masao Hirotani has authored 60 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 46 papers in Molecular Biology, 31 papers in Pharmacology and 8 papers in Plant Science. Recurrent topics in Masao Hirotani's work include Fungal Biology and Applications (24 papers), Steroid Chemistry and Biochemistry (15 papers) and Natural product bioactivities and synthesis (13 papers). Masao Hirotani is often cited by papers focused on Fungal Biology and Applications (24 papers), Steroid Chemistry and Biochemistry (15 papers) and Natural product bioactivities and synthesis (13 papers). Masao Hirotani collaborates with scholars based in Japan, France and Ireland. Masao Hirotani's co-authors include Tsutomu Furuya, Takafumi Yoshikawa, Kiichiro Kawaguchi, Motoo Shiro, Hideyuki Suzuki, R. Kuroda, Yu Zhou, Yoshihisa Asada, Isao Asaka and Wei Li and has published in prestigious journals such as The Journal of Organic Chemistry, Tetrahedron and Phytochemistry.

In The Last Decade

Masao Hirotani

60 papers receiving 1.6k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Masao Hirotani Japan 27 1.1k 727 509 280 260 60 1.7k
Yasunori Yaoita Japan 25 1.1k 1.0× 502 0.7× 771 1.5× 290 1.0× 168 0.6× 102 1.7k
Tetsuro Ikekawa Japan 22 518 0.5× 760 1.0× 406 0.8× 223 0.8× 175 0.7× 65 1.3k
Lin Zhou China 22 740 0.7× 549 0.8× 316 0.6× 281 1.0× 155 0.6× 82 1.4k
Hiroji Sato Japan 23 479 0.4× 652 0.9× 448 0.9× 316 1.1× 214 0.8× 74 1.4k
Wen‐Li Mei China 21 884 0.8× 435 0.6× 567 1.1× 170 0.6× 114 0.4× 111 1.5k
Jiachen Zi China 30 1.8k 1.6× 734 1.0× 643 1.3× 213 0.8× 145 0.6× 80 2.3k
Haruhiro Fujimoto Japan 23 684 0.6× 755 1.0× 476 0.9× 190 0.7× 79 0.3× 62 1.7k
Hirotaka Shibuya Japan 23 792 0.7× 416 0.6× 414 0.8× 210 0.8× 60 0.2× 84 1.5k
Han‐Dong Sun China 23 725 0.6× 286 0.4× 651 1.3× 191 0.7× 130 0.5× 58 1.3k
J. D. Connolly United Kingdom 20 924 0.8× 234 0.3× 549 1.1× 222 0.8× 131 0.5× 80 1.6k

Countries citing papers authored by Masao Hirotani

Since Specialization
Citations

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

Fields of papers citing papers by Masao Hirotani

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masao Hirotani

This figure shows the co-authorship network connecting the top 25 collaborators of Masao Hirotani. A scholar is included among the top collaborators of Masao Hirotani 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 Masao Hirotani. Masao Hirotani 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.
Kamaike, Kazuo, Tatsuya Shirahata, Yoshihisa Asada, et al.. (2017). Phellilane L, Sesquiterpene Metabolite of Phellinus linteus: Isolation, Structure Elucidation, and Asymmetric Total Synthesis. The Journal of Organic Chemistry. 82(23). 12377–12385. 16 indexed citations
2.
Shirahata, Tatsuya, Yoshihisa Asada, Masao Hirotani, et al.. (2017). γ-Ionylidene-type sesquiterpenoids possessing antimicrobial activity against Porphyromonas gingivalis from Ph ellinus linteus and their absolute structure determination. The Journal of Antibiotics. 70(5). 695–698. 15 indexed citations
3.
4.
Hirotani, Masao, et al.. (2003). Agariblazeispirols A and B, an unprecedented skeleton from the cultured mycelia of the fungus, Agaricus blazei. Tetrahedron Letters. 44(43). 7975–7979. 7 indexed citations
5.
Li, Wei, Kazuhiko Koike, Yujiro Asada, et al.. (2002). Glycyrrhiza pallidiflora(カンゾウ)毛状根培養からのフラボノイド. Phytochemistry. 60(4). 351–355. 28 indexed citations
6.
Li, Wei, Kazuo Koike, Yoshihisa Asada, et al.. (2002). Flavonoids from Glycyrrhiza pallidiflora hairy root cultures. Phytochemistry. 60(4). 351–355. 40 indexed citations
7.
Hirotani, Masao, et al.. (2002). Blazeispirane and protoblazeispirane derivatives from the cultured mycelia of the fungus Agaricus blazei. Phytochemistry. 61(5). 589–595. 11 indexed citations
8.
Li, Wei, Yoshihisa Asada, Kazuo Koike, et al.. (2001). Flavonoids from Glycyrrhiza pallidiflora hairy root cultures. Phytochemistry. 58(4). 595–598. 38 indexed citations
9.
Hirotani, Masao, R. Kuroda, Hideyuki Suzuki, & Takafumi Yoshikawa. (2000). Cloning and expression of UDP-glucose: flavonoid 7-O-glucosyltransferase from hairy root cultures of Scutellaria baicalensis. Planta. 210(6). 1006–1013. 124 indexed citations
10.
11.
Hirotani, Masao, et al.. (2000). Biosynthesis of blazeispirol A, an unprecedented skeleton from the cultured mycelia of the fungus Agaricus blazei. Tetrahedron Letters. 41(32). 6101–6104. 10 indexed citations
12.
Hirotani, Masao, et al.. (1999). Blazeispirol A, an unprecedented skeleton from the cultured mycelia of the fungus Agaricus blazei. Tetrahedron Letters. 40(2). 329–332. 19 indexed citations
13.
Hirotani, Masao, et al.. (1998). Baicalin and Baicalein Productions of Cultured Scutellaria baicalensis Cells. 52(5). 440–443. 12 indexed citations
14.
Kawaguchi, Kiichiro, et al.. (1998). Biotransformation of digitoxigenin by cultured Strophanthus hybrid cells. Phytochemistry. 47(7). 1261–1265. 9 indexed citations
15.
Kawaguchi, Kiichiro, Takashi Watanabe, Masao Hirotani, & Tsutomu Furuya. (1996). Biotransformation of digitoxigenin by cultured ginseng cells. Phytochemistry. 42(3). 667–669. 11 indexed citations
16.
Hirotani, Masao, et al.. (1987). Ganoderic acid derivatives and ergosta-4,7,22-triene-3,6-dione from Ganoderma lucidum. Phytochemistry. 26(10). 2797–2803. 70 indexed citations
17.
Hirotani, Masao & Tsutomu Furuya. (1980). Biotransformation of digitoxigenin by cell suspension cultures of Digitalis purpurea. Phytochemistry. 19(4). 531–534. 22 indexed citations
18.
Hirotani, Masao & Tsutomu Furuya. (1974). Biotransformation of testosterone and other androgens by suspension cultures of Nicotiana tabacum “Bright yellow”. Phytochemistry. 13(10). 2135–2142. 27 indexed citations
19.
Furuya, Tsutomu, Masao Hirotani, & Kiichiro Kawaguchi. (1971). Biotransformation of progesterone and pregnenolone by plant suspension cultures. Phytochemistry. 10(5). 1013–1017. 33 indexed citations
20.
Yamane, Kunio, et al.. (1970). Effect of Nature and Supply of Carbon Sources on Cellulase Formation in Pseudomonas fluorescens var. cellulosa. The Journal of Biochemistry. 67(1). 9–18. 48 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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