Masao Nasu

4.3k total citations
133 papers, 3.3k citations indexed

About

Masao Nasu is a scholar working on Ecology, Molecular Biology and Pollution. According to data from OpenAlex, Masao Nasu has authored 133 papers receiving a total of 3.3k indexed citations (citations by other indexed papers that have themselves been cited), including 58 papers in Ecology, 41 papers in Molecular Biology and 34 papers in Pollution. Recurrent topics in Masao Nasu's work include Microbial Community Ecology and Physiology (45 papers), Wastewater Treatment and Nitrogen Removal (24 papers) and Bacteriophages and microbial interactions (19 papers). Masao Nasu is often cited by papers focused on Microbial Community Ecology and Physiology (45 papers), Wastewater Treatment and Nitrogen Removal (24 papers) and Bacteriophages and microbial interactions (19 papers). Masao Nasu collaborates with scholars based in Japan, China and Thailand. Masao Nasu's co-authors include Nobuyasu Yamaguchi, Katsuji Tani, Takehiko Kenzaka, Tomotada Iwamoto, Tomoaki Ichijo, Rubén Araya, Tatsuya Takagi, Takashi Baba, Fumito Maruyama and K. Tani and has published in prestigious journals such as PLoS ONE, Applied and Environmental Microbiology and Scientific Reports.

In The Last Decade

Masao Nasu

130 papers receiving 3.1k 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 Nasu Japan 31 1.1k 977 744 597 592 133 3.3k
Andreas H. Farnleitner Austria 36 1.2k 1.1× 1.2k 1.2× 613 0.8× 380 0.6× 653 1.1× 153 4.4k
Gideon Wolfaardt Canada 33 583 0.5× 1.3k 1.3× 1.1k 1.5× 644 1.1× 616 1.0× 126 4.2k
Donald J. Reasoner United States 22 895 0.8× 1.0k 1.1× 634 0.9× 283 0.5× 1.1k 1.8× 39 3.5k
Betty H. Olson United States 42 1.3k 1.2× 1.4k 1.4× 1.2k 1.6× 460 0.8× 1.6k 2.7× 117 5.4k
Woojun Park South Korea 38 1.3k 1.2× 2.2k 2.3× 1.1k 1.5× 336 0.6× 342 0.6× 179 4.9k
Jean‐Jacques Godon France 36 1.0k 0.9× 1.8k 1.9× 1.1k 1.5× 560 0.9× 569 1.0× 102 4.6k
Mike Manefield Australia 35 1.7k 1.5× 2.2k 2.3× 1.3k 1.7× 583 1.0× 515 0.9× 97 5.2k
Stefano Fedi Italy 27 531 0.5× 927 0.9× 676 0.9× 386 0.6× 311 0.5× 61 3.2k
Martin A. Hamilton United States 26 593 0.5× 1.7k 1.7× 1.1k 1.5× 476 0.8× 1.8k 3.0× 88 5.7k
Jon L. Hobman United Kingdom 39 1.1k 1.0× 2.0k 2.1× 934 1.3× 466 0.8× 1.2k 2.0× 80 5.5k

Countries citing papers authored by Masao Nasu

Since Specialization
Citations

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

Fields of papers citing papers by Masao Nasu

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masao Nasu

This figure shows the co-authorship network connecting the top 25 collaborators of Masao Nasu. A scholar is included among the top collaborators of Masao Nasu 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 Nasu. Masao Nasu 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.
Mimura, Mayumi, et al.. (2023). Microbial Water Quality Assessment of Private Wells Using 16S rRNA Gene Amplicon Sequencing with a Nanopore Sequencer. Biological and Pharmaceutical Bulletin. 46(2). 263–271.
2.
Takarada, K, et al.. (2020). Optimal fluorescent‐dye staining time for the real‐time detection of microbes: a study of Saccharomyces cerevisiae. Journal of Applied Microbiology. 128(6). 1694–1702.
3.
Ichijo, Tomoaki, et al.. (2019). Culture independent approach reveals domination of human-oriented microbes in a pharmaceutical manufacturing facility. European Journal of Pharmaceutical Sciences. 137. 104973–104973. 7 indexed citations
4.
Arikawa, Kentaro, Tomoaki Ichijo, Satomi Nakajima, et al.. (2019). Genetic relatedness of Mycobacterium avium subsp. hominissuis isolates from bathrooms of healthy volunteers, rivers, and soils in Japan with human clinical isolates from different geographical areas. Infection Genetics and Evolution. 74. 103923–103923. 10 indexed citations
5.
Yamaguchi, Nobuyasu, Tomoaki Ichijo, & Masao Nasu. (2016). Bacterial Monitoring in the International Space Station-“Kibo” Based on rRNA Gene Sequence. TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES AEROSPACE TECHNOLOGY JAPAN. 14(ists30). Pp_1–Pp_4. 3 indexed citations
6.
Ichijo, Tomoaki, et al.. (2014). Distribution and Respiratory Activity of Mycobacteria in Household Water System of Healthy Volunteers in Japan. PLoS ONE. 9(10). e110554–e110554. 16 indexed citations
7.
Yamaguchi, Nobuyasu, Michael S. Roberts, Sarah Castro, et al.. (2014). Microbial Monitoring of Crewed Habitats in Space—Current Status and Future Perspectives. Microbes and Environments. 29(3). 250–260. 83 indexed citations
8.
Zhang, Rong, Tomoaki Ichijo, Yanyan Hu, et al.. (2012). A ten years (2000–2009) surveillance of resistantEnterobacteriaceaein Zhejiang Province, China. Microbial Ecology in Health and Disease. 23(0). 5 indexed citations
9.
Iwamoto, Tomotada, Chie Nakajima, Yukiko Nishiuchi, et al.. (2011). Genetic diversity of Mycobacterium avium subsp. hominissuis strains isolated from humans, pigs, and human living environment. Infection Genetics and Evolution. 12(4). 846–852. 51 indexed citations
10.
Yamaguchi, Nobuyasu, Tomoaki Ichijo, & Masao Nasu. (2010). Environmental disease: environmental alteration and infectious disease. Ecological Research. 26(5). 893–896. 6 indexed citations
11.
12.
Yamaguchi, Nobuyasu, et al.. (2009). Staphylococcus epidermidis Forms Floating Micro-colonies in Platelet Concentrates at the Early Stage of Contamination. JOURNAL OF HEALTH SCIENCE. 55(5). 726–731. 3 indexed citations
13.
Uchii, Kimiko, Kazuaki Matsui, Ryuji Yonekura, et al.. (2006). Genetic and Physiological Characterization of the Intestinal Bacterial Microbiota of Bluegill (Lepomis macrochirus) with Three Different Feeding Habits. Microbial Ecology. 51(3). 277–284. 55 indexed citations
14.
Yamaguchi, Nobuyasu, et al.. (2006). Rapid quantification of bacterial cells in potable water using a simplified microfluidic device. Journal of Microbiological Methods. 68(3). 643–647. 26 indexed citations
15.
Kenzaka, Takehiko, Shigeru Tamaki, Nobuyasu Yamaguchi, Katsuji Tani, & Masao Nasu. (2005). Recognition of Individual Genes in Diverse Microorganisms by Cycling Primed In Situ Amplification. Applied and Environmental Microbiology. 71(11). 7236–7244. 17 indexed citations
16.
Nagase, Hiroyasu, et al.. (2004). Degradation of carbendazim and 2,4-dichlorophenoxyacetic acid by immobilized consortium on loofa sponge. Journal of Bioscience and Bioengineering. 98(1). 28–33. 42 indexed citations
17.
Ogawa, M., K. Tani, Nobuyasu Yamaguchi, & Masao Nasu. (2003). Development of multicolour digital image analysis system to enumerate actively respiring bacteria in natural river water. Journal of Applied Microbiology. 95(1). 120–128. 20 indexed citations
18.
Iwamoto, Tomotada, Katsuji Tani, Kanji Nakamura, et al.. (2000). Monitoring impact of in situ biostimulation treatment on groundwater bacterial community by DGGE. FEMS Microbiology Ecology. 32(2). 129–141. 201 indexed citations
19.
Kawabata, Zen’ichiro, et al.. (1995). Synthesis of a Species-Defined Microcosm with Protozoa. Obihiro University of Agriculture and Veterinary Medicine Institutional Repository. 5(1). 23–26. 15 indexed citations
20.
Nakanishi, Tsutomu, et al.. (1983). Production of cryptotanshinone and ferruginol in cultured cells of Salvia miltiorrhiza. Phytochemistry. 22(3). 721–722. 41 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 Andreas H. Farnleitner Breakdown of academic impact, for papers by Gideon Wolfaardt Breakdown of academic impact, for papers by Donald J. Reasoner Breakdown of academic impact, for papers by Betty H. Olson Breakdown of academic impact, for papers by Woojun Park Breakdown of academic impact, for papers by Jean‐Jacques Godon Breakdown of academic impact, for papers by Mike Manefield Breakdown of academic impact, for papers by Stefano Fedi Breakdown of academic impact, for papers by Martin A. Hamilton Breakdown of academic impact, for papers by Jon L. Hobman
Rankless by CCL
2026