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N. Imamura · SciRah

Researcher profile · Semantic Scholar

N. Imamura

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N. Imamura — researcher profile on SciRah

h-index: 28
Works: 87
Citations: 1,762

Most-cited papers

Chlorella variabilis and Micractinium reisseri sp. nov. (Chlorellaceae, Trebouxiophyceae): Redescription of the endosymbiotic green algae of Paramecium bursaria (Peniculia, Oligohymenophorea) in the 120th year
R. Hoshina, M. Iwataki, N. Imamura
201099 citations
Semantic Scholar
Genetic evidence of "American" and "European" type symbiotic algae of Paramecium bursaria Ehrenberg.
R. Hoshina, Y. Katô, Shin-ichiro Kamako, N. Imamura
2005Plant biology70 citations
Semantic Scholar
Clostomicins, new antibiotics produced by Micromonospora echinospora subsp. armeniaca subsp. nov. I. Production, isolation, and physico-chemical and biological properties.
S. Ōmura, N. Imamura, Ruiko Oiwa, H. Kuga +3 more
1986Journal of antibiotics (Tokyo. 1968)65 citations Open access
Semantic Scholar
Multiple origins of the symbioses in Paramecium bursaria.
R. Hoshina, N. Imamura
2008Protist62 citations
Semantic Scholar
Argimicin A, a novel anti-cyanobacterial compound produced by an algae-lysing bacterium.
N. Imamura, Izumi Motoike, M. Noda, Kyouko Adachi +2 more
2000Journal of antibiotics (Tokyo. 1968)60 citations Open access
Semantic Scholar
Oridamycins A and B, anti-Saprolegnia parasitica indolosesquiterpenes isolated from Streptomyces sp. KS84.
Kentaro Takada, Hisatsugu Kajiwara, N. Imamura
2010Journal of Natural Products59 citations
Semantic Scholar
The structure of phosalacine, a new herbicidal antibiotic containing phosphinothricin.
S. Ōmura, K. Hinotozawa, N. Imamura, Masatsune Murata
1984Journal of antibiotics (Tokyo. 1968)58 citations Open access
Semantic Scholar
The structure of vineomycin B2.
N. Imamura, K. Kakinuma, N. Ikekawa, Haruo Tanaka +1 more
1981Journal of antibiotics (Tokyo. 1968)58 citations Open access
Semantic Scholar
Phylogenetic position of endosymbiotic green algae in Paramecium bursaria Ehrenberg from Japan.
R. Hoshina, S. Kamako, N. Imamura
2004Plant biology57 citations
Semantic Scholar
Biosynthesis of vineomycins A1 and B2.
N. Imamura, K. Kakinuma, N. Ikekawa, Haruo Tanaka +1 more
1982Journal of antibiotics (Tokyo. 1968)57 citations Open access
Semantic Scholar
Microbulbifer variabilis sp. nov. and Microbulbifer epialgicus sp. nov., isolated from Pacific marine algae, possess a rod-coccus cell cycle in association with the growth phase.
M. Nishijima, T. Takadera, N. Imamura, H. Kasai +5 more
2009International Journal of Systematic and Evolutionary Microbiology54 citations Open access
Semantic Scholar
Atpenins, new antifungal antibiotics produced by Penicillium sp. Production, isolation, physico-chemical and biological properties.
S. Ōmura, H. Tomoda, K. Kimura, De-Zhong Zhen +6 more
1988Journal of antibiotics (Tokyo. 1968)52 citations Open access
Semantic Scholar
Jietacins A and B, new nematocidal antibiotics from a Streptomyces sp. Taxonomy, isolation, and physico-chemical and biological properties.
S. Ōmura, Kazuhiko Otoguro, N. Imamura, Hlroshi Kuga +6 more
1987Journal of antibiotics (Tokyo. 1968)45 citations Open access
Semantic Scholar
Establishment of axenic endosymbiotic strains of Japanese Paramecium bursaria and the utilization of carbohydrate and nitrogen compounds by the isolated algae
S. Kamako, R. Hoshina, S. Ueno, N. Imamura
200541 citations
Semantic Scholar
A Compound Inhibits Biofilm Formation of Staphylococcus aureus from Streptomyces.
N. Suzuki, Norihiro Ohtaguro, Yasuaki Yoshida, M. Hirai +4 more
2015Biological and Pharmaceutical Bulletin33 citations Open access
Semantic Scholar
The structures of atpenins A4, A5 and B, new antifungal antibiotics produced by Penicillium sp.
H. Kumagai, Hiroyuki Nishida, N. Imamura, H. Tomoda +2 more
1990Journal of antibiotics (Tokyo. 1968)33 citations Open access
Semantic Scholar
Adechlorin, a new adenosine deaminase inhibitor containing chlorine production, isolation and properties.
S. Ōmura, N. Imamura, H. Kuga, H. Ishikawa +5 more
1985Journal of antibiotics (Tokyo. 1968)33 citations Open access
Semantic Scholar
Studies on the nitrogen utilization of endosymbiotic algae isolated from Japanese Paramecium bursaria
Y. Katô, S. Ueno, N. Imamura
200632 citations
Semantic Scholar
A facile and improved synthesis of tubercidin and certain related pyrrolo[2,3‐d]pyrimidine nucleosides by the stereospecific sodium salt glycosylation procedure
K. Ramasamy, N. Imamura, R. K. Robins, G. R. Revankar
198832 citations
Semantic Scholar
Ahpatinins, new acid protease inhibitors containing 4-amino-3-hydroxy-5-phenylpentanoic acid.
Satoshi Ōmura, N. Imamura, K. Kawakita, Yoko Mori +6 more
1986Journal of antibiotics (Tokyo. 1968)32 citations Open access
Semantic Scholar
Structures of jietacines: unique alpha,beta-unsaturated azoxy antibiotics.
N. Imamura, H. Kuga, Kazuhiko Otoguro, Haruo Tanaka +1 more
1989Journal of antibiotics (Tokyo. 1968)31 citations Open access
Semantic Scholar
The structure of virustomycin A.
S. Ōmura, N. Imamura, K. Hinotozawa, K. Otoguro +5 more
1983Journal of antibiotics (Tokyo. 1968)31 citations Open access
Semantic Scholar
Synthesis and structure-activity relationship of botryllamides that block the ABCG2 multidrug transporter.
Kentaro Takada, N. Imamura, K. Gustafson, C. J. Henrich
2010Bioorganic & Medicinal Chemistry Letters30 citations Open access
Semantic Scholar
Effect of Japanese Paramecium bursaria Extract on Photosynthetic Carbon Fixation of Symbiotic Algae
S. Kamako, N. Imamura
2006Journal of Eukaryotic Microbiology30 citations
Semantic Scholar
Identification of the Aglycon Part of Vineomycin A1 with Aquayamycin
N. Imamura, K. Kakinuma, N. Ikekawa, Haruo Tanaka +1 more
198130 citations Open access
Semantic Scholar
Synthesis and antitumor evaluation in mice of certain 7-deazapurine (pyrrolo[2,3-d]pyrimidine) and 3-deazapurine (imidazo[4,5-c]pyridine) nucleosides structurally related to sulfenosine, sulfinosine, and sulfonosine.
K. Ramasamy, N. Imamura, N. Hanna, R. Finch +3 more
1990Journal of Medicinal Chemistry28 citations
Semantic Scholar
Synthesis and in vivo antitumor activity of 2-amino-9H-purine-6-sulfenamide, -sulfinamide, and -sulfonamide and related purine ribonucleosides.
G. R. Revankar, N. Hanna, N. Imamura, A. Lewis +4 more
1990Journal of Medicinal Chemistry28 citations
Semantic Scholar
A facile synthesis of tubercidin and related 7-deazapurine nucleosides via the stereospecific sodium salt glycosylation procedure
K. Ramasamy, N. Imamura, R. K. Robins, G. R. Revankar
198728 citations
Semantic Scholar
Intraspecific genetic divergence of Paramecium bursaria and re-construction of the paramecian phylogenetic tree
R. Hoshina, Sayaka Hayashi, N. Imamura
200627 citations
Semantic Scholar
Takaokamycin, a new peptide antibiotic produced by Streptomyces sp.
S. Ōmura, H. Mamada, Nan-Jin Wang, N. Imamura +3 more
1984Journal of antibiotics (Tokyo. 1968)23 citations Open access
Semantic Scholar
Structure and biosynthesis of setomimycin, a novel 9,9'-bianthryl antibiotic
K. Kakinuma, N. Imamura, N. Ikekawa, Haruo Tanaka +2 more
198023 citations
Semantic Scholar
Adecypenol, a unique adenosine deaminase inhibitor containing homopurine and cyclopentene rings.
S. Ōmura, H. Ishikawa, H. Kuga, N. Imamura +3 more
1986Journal of antibiotics (Tokyo. 1968)21 citations Open access
Semantic Scholar
Studies on Steroids. LXIII. Synthesis of Cholesterol Analogs with a Modified Side Chain
M. Morisaki, M. Shibata, C. Duque, N. Imamura +1 more
198021 citations Open access
Semantic Scholar
Saprolmycins A–E, new angucycline antibiotics active against Saprolegnia parasitica
Kazuya Nakagawa, C. Hara, S. Tokuyama, Kentaro Takada +1 more
2012Journal of antibiotics (Tokyo. 1968)20 citations
Semantic Scholar
Phylogenetically close group I introns with different positions among Paramecium bursaria photobionts imply a primitive stage of intron diversification.
R. Hoshina, N. Imamura
2009Molecular biology and evolution20 citations Open access
Semantic Scholar
Diacetone glucose architecture as a chirality template. II.1 Versatile synthon for the chiral deuterium labeling and synthesis of all diastereoisomers of chirally monodeuterated glycerol
K. Kakinuma, Y. Iihama, Izumi Takagi, K. Ozawa +4 more
199220 citations
Semantic Scholar
Facile synthesis of chiral glycine using D-glucose as a chiral template
K. Kakinuma, N. Imamura, Y. Saba
198219 citations
Semantic Scholar
Structure and biosynthesis of a new antifungal antibiotic, phthoramycin.
Akira Nakagawa, Satomi Miura, H. Imai, N. Imamura +1 more
1989Journal of antibiotics (Tokyo. 1968)18 citations Open access
Semantic Scholar
Metabolic Control Between the Symbiotic Chlorella and the Host Paramecium
Y. Katô, N. Imamura
200917 citations
Semantic Scholar
Effect of calcium ion on uptake of amino acids by symbiotic Chlorella F36-ZK isolated from Japanese Paramecium bursaria
Y. Katô, N. Imamura
200816 citations
Semantic Scholar
Action mechanism of a selective anti-cyanobacterial compound, argimicin A.
Ryou Hibayashi, N. Imamura
2003Journal of antibiotics (Tokyo. 1968)16 citations Open access
Semantic Scholar
Argimicins B and C, new anti-cyanobacterial compounds produced by Sphingomonas sp. M-17.
Takashi Yamaguchi, Yoshie Kobayashi, K. Adachi, N. Imamura
2003Journal of antibiotics (Tokyo. 1968)15 citations Open access
Semantic Scholar
Izupeptins A and B, new glycopeptide antibiotics produced by an actinomycete.
Priska Spiri-Nakagawa, Y. Fukushi, Kazunori Maebashi, N. Imamura +4 more
1986Journal of antibiotics (Tokyo. 1968)15 citations Open access
Semantic Scholar
Structure of a new macrolide antibiotic, X-14952B.
S. Ōmura, Akira Nakagawa, N. Imamura, K. Kushida +3 more
1985Journal of antibiotics (Tokyo. 1968)15 citations Open access
Semantic Scholar
Origins of Algal Symbionts of Paramecium bursaria
R. Hoshina, N. Imamura
200914 citations
Semantic Scholar
Eu‐Chlorella large subunit rDNA sequences and group I introns in ribosomal DNA of the paramecian symbiotic alga NC64A
R. Hoshina, N. Imamura
200814 citations
Semantic Scholar
Effect of sugars on amino acid transport by symbiotic Chlorella.
Y. Katô, N. Imamura
2008Plant physiology and biochemistry : PPB14 citations
Semantic Scholar
Cytological, genetic, and biochemical characteristics of an unusual non‐Chlorella photobiont of Stentor polymorphus collected from an artificial pond close to the shore of Lake Biwa, Japan
R. Hoshina, Emi Sato, Aika Shibata, Y. Fujiwara +2 more
201313 citations
Semantic Scholar
Induction of Maltose Release by Light in the Endosymbiont Chlorella variabilis of Paramecium bursaria.
Aika Shibata, F. Takahashi, M. Kasahara, N. Imamura
2016Protist12 citations
Semantic Scholar
An Antibiotic from Penicillium sp. Covering the Cocoon of the Leaf-rolling Moth, Dactylioglypha tonica
N. Imamura, T. Ishikawa, T. Ohtsuka, Kazumi Yamamoto +3 more
2000Bioscience, biotechnology and biochemistry12 citations
Semantic Scholar

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R. Hoshina×10
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R. Hoshina — researcher profile on SciRah
Haruo Tanaka×10
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S. Ōmura×8
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K. Kakinuma — researcher profile on SciRah

Yōko Takahashi×6

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Y. Katô — researcher profile on SciRah

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H. Kuga — researcher profile on SciRah

G. R. Revankar×4

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Kentaro Takada×3

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S. Kamako — researcher profile on SciRah