Takeshi Naganuma

Last Updated :2021/05/11

Affiliations, Positions
Graduate School of Integrated Sciences for Life, Professor
E-mail
taknhiroshima-u.ac.jp
Other Contact Details
1-4-4, Kagamiyama, Higashi-Hiroshima, Japan
TEL : (+81)82-424-7986 FAX : (+81)82-424-7916
Self-introduction
My research interests (in my terminology Applied Environmental Life Science) are 1) search for applicability of organisms living in extreme environments such as deep-sea, deep subsurface, volcanoes and Antarctica as well as organisms in ordinary habitats; and, 2) possibilities of the existence of extraterrestrial lives as well as human exploitation of extraterrestrial astronomical objects.

Basic Information

Major Professional Backgrounds

  • 1994/09/01, 2015/09/30, Hiroshima University, Faculty of Applied Biological Science, Graduate School of Biosphere Science, Associate Professor
  • 1989/04/01, 1994/08/31, Japan Marine Science and Technology Center (JAMSTEC), Deep Sea Research Department, researcher
  • 2015/10/01, 2019/03/31, Hiroshima University, Office of Academic Research and Industry-Academia-Government and Community Collaboration, Professor
  • 2019/04/01, Hiroshima University, Graduate School of Integrated Sciences for Life, Professor

Educational Backgrounds

  • University of Tsukuba, Graduate School of Biological Sciences, basic biology, Japan, 1984/04, 1989/03
  • University of Tsukuba, Second Cluster of Colleges, College for Biological Sciences, Japan, 1980/04, 1984/03

Academic Degrees

  • Doctor of Science, University of Tsukuba

In Charge of Primary Major Programs

  • Molecular Agro-Life Science Program

Research Fields

  • Biology;Basic biology;Biodiversity / Systematics

Research Keywords

  • Lichen
  • Sturgeon
  • deep-sea
  • Antarctica
  • deserts
  • space
  • extreme environment

Affiliated Academic Societies

  • Aquatic Ecosystem Health & Management Society, 1995
  • Japanese Society for Marine Biotechnology , 1996
  • American Geophysical Union, 1997
  • Society for General Microbiology, 1997
  • American Association for the Advancement of Science, 1995, 2004
  • American Society of Limnology and Oceanography, 1993
  • American Society for Microbiology, 1991
  • Japanese Society of Microbial Ecology, 1989
  • The Oceanographic Society of Japan, 1984

Educational Activity

Course in Charge

  1. 2021, Undergraduate Education, Intensive, Problem Based Learning for Molecular Agro-Life ScienceI
  2. 2021, Undergraduate Education, 3Term, Genome Science I
  3. 2021, Undergraduate Education, 4Term, Bio-Analytical Science
  4. 2021, Undergraduate Education, 3Term, Reading of Foreign Literature in Molecular Agro-Life Science
  5. 2021, Undergraduate Education, Intensive, (AIMS)Molecular Agro-life Science
  6. 2021, Undergraduate Education, 3Term, Molecular Agro-life Science
  7. 2021, Graduate Education (Master's Program) , 1Term, Exercises in Food andAgriLife Science A
  8. 2021, Graduate Education (Master's Program) , 2Term, Exercises in Food andAgriLife Science A
  9. 2021, Graduate Education (Master's Program) , 3Term, Exercises in Food andAgriLife Science B
  10. 2021, Graduate Education (Master's Program) , 4Term, Exercises in Food andAgriLife Science B
  11. 2021, Graduate Education (Master's Program) , Academic Year, Research for Academic Degree Dissertation in Food andAgriLife Science
  12. 2021, Graduate Education (Master's Program) , 4Term, Applied Environmental Life Science
  13. 2021, Graduate Education (Doctoral Program) , Academic Year, Research for Academic Degree Dissertation in Integrated Life Sciences
  14. 2021, Graduate Education (Master's Program) , Second Semester, Interdisciplinary Seminar A
  15. 2021, Graduate Education (Doctoral Program) , Second Semester, Interdisciplinary Seminar B

Research Activities

Academic Papers

  1. Redox front formation in an uplifting sedimentary rock sequence: An analogue for redox-controlling processes in the geosphere around deep geological repositories for radioactive waste, APPLIED GEOCHEMISTRY, 23(8), 2364-2381, 20080808
  2. Laminated iron texture by iron-oxidizing bacteria in a calcite travertine, GEOMICROBIOLOGY JOURNAL, 25(42433.0), 193-202, 20080531
  3. Long-term collection of benthic and benthopelagic organisms from a deep-water inlet offshore from Okinawa, Japan, MARINE ECOLOGY PROGRESS SERIES, 358, 301-307, 20080421
  4. Molecular characterization and in situ localization of endosymbiotic 16S rRNA and RuBisCO genes in the pogonophoran tissue, Marine Biotechnology, 5, 261-269, 20030401
  5. Distribution of microorganisms in the subsurface of the Manus Basin hydrothermal vent field, Papua New Guinea, Applied and Environmental Microbiology, 69, 644-648, 20030401
  6. Analyses of 16S rRNA and RuBisCO large subunit genes from an abyssal low-temperature vent, Loihi Seamount, Hawaii, CAHIERS DE BIOLOGIE MARINE, 43(42433.0), 403-408, 20021225
  7. Geological and microbial anomalies in the extinct submarine volcano, Shiribeshi Seamount, in the eastern margin of the Japan Sea, ISLAND ARC, 11(4), 274-286, 20021202
  8. Morphological studies on the bathyal ascidian, Megalodicopia hians Oka 1918 (Octacnemidae, Phlebobranchia), with remarks on feeding and tunic morphology, ZOOLOGICAL SCIENCE, 19(10), 1181-1189, 20021002
  9. Cell plasticity and genomic structure of a novel filterable bacterium that belongs to a widely distributed lineage, Microorganisms, 8(9), 1373, 20200907
  10. ★, Enhanced Bacterial Growth and Gene Expression of D-Amino Acid Dehydrogenase With D-Glutamate as the Sole Carbon Source, FRONTIERS IN MICROBIOLOGY, 9, 20180904
  11. Aurantimicrobium minutum gen. nov., sp nov., a novel ultramicrobacterium of the family Microbacteriaceae, isolated from river water, INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 65, 4072-4079, 201511
  12. Biogeographical note on Antarctic microflorae: Endemism and cosmopolitanism, GEOSCIENCE FRONTIERS, 4(6), 633-646, 201311
  13. Genome sequence and overview of Oligoflexus tunisiensis Shr3(T) in the eighth class Oligoflexia of the phylum Proteobacteria, STANDARDS IN GENOMIC SCIENCES, 11, 20161213
  14. Silvanigrella aquatica gen. nov., sp nov., isolated from a freshwater lake, description of Silvanigrellaceae fam. nov and Silvanigrellales ord. nov., reclassification of the order Bdellovibrionales in the class Oligoflexia, reclassification of the families Bacteriovoracaceae and Halobacteriovoraceae in the new order Bacteriovoracales ord. nov., and reclassification of the family Pseudobacteriovoracaceae in the order Oligoflexales, INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 67(8), 2555-2568, 201708
  15. Improvement of terrestrial groundwater sampling method affects microbial community analysis, GEOMICROBIOLOGY JOURNAL, 36(4), 303-316, 20190421
  16. Phylotypic Characterization of Mycobionts and Photobionts of Rock Tripe Lichen in East Antarctica, MICROORGANISMS, 7(7), 20190718
  17. Characteristics of naturally grown biofilms in deep groundwaters and their heavy metal sorption property in a deep subsurface environment, Geomicrobiology Journal, 1-15, 20170207
  18. Anaerobic decomposition of humic substances by Clostridium from the deep subsurface, SCIENTIFIC REPORTS, 6, 20160108
  19. Complete genome sequence of Aurantimicrobium minutum type strain KNCT, a planktonic ultramicrobacterium isolated from river water, Genome Announcements, 4(3), e00616-16, 20160630
  20. Record of Lyonsia kawamurai Habe, 1952 collected from the Seto inland sea, Biosphere Science, 54, 55-59, 201512
  21. New records of sea cucumber collected from the Seto Inland Sea (Echinodermata, Holothuria, Dendrochirotida), Biosphere Science, 54, 61-64, 201512
  22. Methanosarcina subterranea sp nov., a methanogenic archaeon isolated from a deep subsurface diatomaceous shale formation, INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 65(4), 1167-1171, 20150415
  23. Oligoflexia, the newest class of the phylum Proteobacteria, consisting of only one cultured species and uncultured bacterial phylotypes from diverse habitats., Journal of Phylogenetics and Evolutionary Biology, 3, 141, 201501
  24. Monstrotyphis tosaensis (Mollusca, Gastropoda, Muricidae) collected from off-Satsuma Iōjima Island, northern Satsunan Islands, Japan, Biosphere Science, 53, 23-26, 201412
  25. ★, Oligoflexus tunisiensis gen. nov., sp nov., a Gram-negative, aerobic, filamentous bacterium of a novel proteobacterial lineage, and description of Oligoflexaceae fam. nov., Oligoflexales ord. nov and Oligoflexia classis nov., INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 64, 3353-3359, 20141001
  26. Structural Alteration of Humic Acids by Pseudomonas spp. from Deep Terrestrial Subsurface Diatomite Formations in Northernmost Japan, GEOMICROBIOLOGY JOURNAL, 31(8), 654-663, 20140901
  27. Methanoculleus horonobensis sp nov., a methanogenic archaeon isolated from a deep diatomaceous shale formation, INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 63, 4320-4323, 20131113
  28. ★, Genus-specific quantitative PCR of thraustochytrid protists, MARINE ECOLOGY PROGRESS SERIES, 486, 1-12, 20130712
  29. Phylogeographic analysis of filterable bacteria with special reference to Rhizobiales strains that occur in cryospheric habitats, ANTARCTIC SCIENCE, 25(2), 219-228, 20130413
  30. Diversity of RuBisCO gene responsible for CO2 fixation in an Antarctic moss pillar, POLAR BIOLOGY, 35(11), 1641-1650, 20121112
  31. Eukaryotic phylotypes in aquatic moss pillars inhabiting a freshwater lake in East Antarctica, based on 18S rRNA gene analysis, POLAR BIOLOGY, 35(10), 1495-1504, 20121012
  32. Microflorae of aquatic moss pillars in a freshwater lake, East Antarctica, based on fatty acid and 16S rRNA gene analyses, POLAR BIOLOGY, 35(3), 425-433, 20120312
  33. An iron-aided environmental remediation, NIPPON SUISAN GAKKAISHI, 78(2), 278-278, 20120312
  34. Metagenomic Analysis of 0.2-mu m-Passable Microorganisms in Deep-Sea Hydrothermal Fluid, MARINE BIOTECHNOLOGY, 13(5), 900-908, 20111011
  35. Methanosarcina horonobensis sp nov., a methanogenic archaeon isolated from a deep subsurface Miocene formation, INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 61, 2503-2507, 20111011
  36. Spatiotemporal variations in the abundances of the prokaryotic rRNA genes, pmoA, and mcrA in the deep layers of a peat bog in Sarobetsu-genya wetland, Japan, LIMNOLOGY, 12(1), 1-9, 20110411
  37. Microbial Processes Forming Daily Lamination in an Aragonite Travertine, Nagano-yu Hot Spring, Southwest Japan, GEOMICROBIOLOGY JOURNAL, 28(2), 135-148, 20110224
  38. Response of microbial community structure to natural and accelerated hydrarch successions in the boreal wetlands in northern Hokkaido, Japan, LIMNOLOGY, 11(3), 273-279, 20101210
  39. Archaeal and bacterial community structures in the anoxic sediment of Antarctic meromictic lake Nurume-Ike, POLAR SCIENCE, 4(2), 421-429, 201008
  40. Communities of algae and cyanobacteria on glaciers in west Greenland, POLAR SCIENCE, 4(1), 71-80, 201005
  41. Microbiological and ecological responses to global environmental changes in polar regions (MERGE): An IPY core coordinating project, POLAR SCIENCE, 3(3), 139-146, 200911
  42. Spore-forming halophilic bacteria isolated from Arctic terrains: Implications for long-range transportation of microorganisms, POLAR SCIENCE, 3(3), 163-169, 200911
  43. Mixture of Kosa (Asian dust) and bioaerosols detected in the atmosphere over the Kosa particles source regions with balloon-borne measurements: possibility of long-range transport, AIR QUALITY ATMOSPHERE AND HEALTH, 2(1), 29-38, 20090301
  44. Biogeochemical characterization of bacterial assemblages in relation to release of arsenic from South East Asia (Bangladesh) sediments, APPLIED GEOCHEMISTRY, 23(11), 3177-3186, 20081108
  45. Virgibacillus salarius sp nov., a halophilic bacterium isolated from a Saharan salt lake, INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 58, 2409-2414, 20081008
  46. The development of Fe-nodules surrounding biological material mediated by microorganisms, ENVIRONMENTAL GEOLOGY, 55(6), 1363-1374, 20080908
  47. Molecular characterization of microbial communities in deep coal seam groundwater of northern Japan, GEOBIOLOGY, 5(4), 423-433, 20071207
  48. Detailed identification of desert-originated bacteria carried by Asian dust storms to Japan, AEROBIOLOGIA, 23(4), 291-298, 20071207
  49. Distribution and phylogenetic characteristics of the genes encoding enzymes relevant to methane oxidation in oxygen minimum zones of the eastern Pacific Ocean, Research Journal of Environmental Sciences, 1(6), 275-284, 20071001
  50. Deep-sea moderately halophilic bacteria Halobacillus profundi sp. nov. and Halobacillus kuroshimensis sp. nov. isolated from a methane cold seep., International Journal of Systematic and Evolutionary Microbiology, 57, 1243-1249, 20071001
  51. Hydrothermal activity on the ultra-slow spreading southern Knipovich Ridge, GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS, 8, 20070828
  52. Phylogenetic diversity and distribution of dissimilatory sulfite reductase genes from deep-sea sediment cores, MARINE BIOTECHNOLOGY, 9(4), 429-436, 20070807
  53. Molecular diversity of the genes encoding ammonia monooxygenase and particulate methane monooxygenase from deep-sea sediments, Research Journal of Microbiology, 2(6), 530-537, 20070801
  54. Application of capillary electrophoresis for determination of DNA base composition., Electrophoresis, 28, 366-372, 20070801
  55. Influence of N2 gas injection on microbial community structure in deep coal seam groundwater, Geobiology, 5, 422-433, 20070710
  56. Phylotype diversity of deep-sea hydrothermal vent prokaryotes trapped by 0.2- and 0.1-mu m-pore-size filters, EXTREMOPHILES, 11(4), 637-646, 20070707
  57. Halobacillus profundi sp nov and Halobacillus kuroshimensis sp nov., moderately halophilic bacteria isolated from a deep-sea methane cold seep, INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 57, 1243-1249, 20070607
  58. Abundances of planktonic thraustochytrids and bacteria and of particulate ATP in the Greenland and Norwegian Seas., Polar Bioscience, 20, 37-45, 20070601
  59. Application of CE for determination of DNA base composition, ELECTROPHORESIS, 28(3), 366-372, 20070207
  60. Composition of archaeal, bacterial, and eukaryal RuBisCO genotypes in three Western Pacific arc hydrothermal vent systems, EXTREMOPHILES, 11(1), 191-202, 20070107
  61. Molecular characterization of a deep-sea methanotrophic mussel symbiont that carries a RuBisCO gene, MARINE BIOTECHNOLOGY, 8(5), 511-520, 20061009
  62. A haptophyte bearing siliceous scales: Ultrastructure and phylogenetic position of Hyalolithus neolepis gen. et sp nov (Prymnesiophyceae, Haptophyta), PROTIST, 157(2), 213-234, 20060606
  63. Isolation and characterization of Pseudomonas strains capable of Fe(III) reduction with reference to redox response regulator genes, GEOMICROBIOLOGY JOURNAL, 23(42433.0), 145-155, 20060604
  64. Super-long anabiosis of ancient microorganisms in ice and terrestrial models for development of methods to search for life on Mars, Europa and other planetary bodies, ADVANCES IN SPACE RESEARCH, 38(6), 1191-1197, 20060601
  65. Succession of bacterial communities during petroleum degradation in bark compost as detected by small subunit ribosomal RNA gene profiles., Aquatic Ecosystem Management and Health, 9(4), 457-462, 20060501
  66. Molecular characterization of microbial communities in fault-bordered aquifers in the Meiocene formation of northernmost Japan., Geobiology, 4, 203-213, 20060201
  67. Depth distribution of euryhaline halophilic bacteria in Suribati Ike, a meromictic lake in East Antarctica, POLAR BIOLOGY, 28(12), 964-970, 20051105
  68. Phylogenetic characterization of 16S rRNA gene clones from deep-groundwater microorganisms that pass through 0.2-micrometer-pore-size filters., Applied and Environmental Microbiology, 71(2), 1084-1088, 20051101
  69. Bacterial endosymbioses of gutless tube-dwelling worms in nonhydrothermal vent habitats, MARINE BIOTECHNOLOGY, 7(5), 416-428, 20051009
  70. Sediment fatty acids associated with seafloor methane seepage in the Nankai and Sagami Troughs, off central Japan., Aquatic Ecosystem Health & Managemen, 8(1), 73-80, 20050501
  71. Phylogenetic characterization of 16S rRNA gene clones from deep-groundwater microorganisms that pass through 0.2-micrometer-pore-size filters, APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 71(2), 1084-1088, 20050205
  72. Microfabricated flow-through device for DNA amplification ? towards in situ gene analysis., Chemical Engineering Journal, 101, 151-156, 20041101
  73. Comparative phylogenetic analyses of Halomonas variabilis and related organisms based on 16S rRNA, gyrB and ectBC gene sequences., Systematic and Applied Microbiology, 27(3), 323-333, 20041101
  74. Biological investigations of the Antarctic ice sheet: review, problems and projects., Polar Bioscience, 17, 106-116, 20041001
  75. Molecular analysis of deep-sea hydrothermal vent aerobic methanotrophs by targeting genes of 16S rRNA and particulate methane monooxygenase, MARINE BIOTECHNOLOGY, 6(5), 503-509, 20041001
  76. Molecular characterization of microbial communities in fault-bordered aquifers in the Miocene formation of northernmost Japan, GEOBIOLOGY, 4(3), 203-213, 20040906
  77. Comparative phylogenetic analyses of Halomonas variabilis and related organisms based on sequences 16S rRNA, gyrB and ectBC gene sequences, SYSTEMATIC AND APPLIED MICROBIOLOGY, 27(3), 323-333, 20040504
  78. Molecular analysis of deep-sea hydrothermal vent aerobic methanotrophs by targeting the genes of 16S rRNA and particulate methane monooxygenase, Marine Biotechnolog, 6(Special Issue), in press, 20040401
  79. Optimization of astaxanthin production by Thraustochytrium CHN-1through response surface analyses, Marine Biotechnology, 6, 20040401
  80. Pilot system for mass degradation of jellyfish by marine bacterial enzyme, Marine Biotechnology, 6, in press, 20040401
  81. Biological investigations of the Antarctic ice sheet: review, problems and projects, Polar Bioscience, 17, 106-116, 20040401
  82. Comparative phylogenetic analyses of Halomonas variabilis and related organisms based on 16S rRNA, gyrB and ectBC gene sequences, Systematic and Applied Microbiology, 27, 323-333, 20040401
  83. Use of different methods for discovery of ice-entrapped microorganisms in ancient layers of the Antarctic glacier, SPACE LIFE SCIENCES: SEARCH FOR SIGNATURES OF LIFE, AND SPACE FLIGHT ENVIRONMENTAL EFFECTS ON THE NERVOUS SYSTEM, 33(8), 1222-1230, 20040129
  84. Endosymbiotic microflora of the vestimentiferan tubeworm (Lamellibrachia sp.) from a bathyal cold seep, MARINE BIOTECHNOLOGY, 5(6), 593-603, 20031201
  85. Phylogenetic position of a deep-sea ascidian, Megalodicopia hians, inferred from the molecular data, ZOOLOGICAL SCIENCE, 20(10), 1243-1247, 20031003
  86. Phylogenetic diversity of dissimilatory sulfite reductase genes from deep-sea cold seep sediment, MARINE BIOTECHNOLOGY, 5(5), 458-468, 20031001
  87. Strontium as a marker for estimation of microscopic growth rates in a bivalve, MARINE ECOLOGY PROGRESS SERIES, 257, 295-301, 20030807
  88. Molecular characterization and in situ localization of endosymbiotic 16S ribosomal RNA and RuBisCO genes in the pogonophoran tissue, MARINE BIOTECHNOLOGY, 5(3), 261-269, 20030601
  89. Endosymbiotic microflora of the vestimentiferan tubeworm, Lamellibrachia sp., from a bathyal cold seep, Marine Biotechnology, 5, 593-603, 20030401
  90. Ester-linked phospholipid fatty acids in marine sediments: testing the possibility of methane seepage in Japan Sea, 6, 397-408, 20030401
  91. Strontium as a marker for estimation of microscopic growth rates in a bivalve, Marine Ecology Progress Series, 257, 295-301, 20030401
  92. Identification by HPLC-MS of carotenoids of the Thraustochytrium CHN-1 strain isolated from the Seto Inland Sea, Bioscience= Biotechnology and Biochemistry, 67, 884-888, 20030401
  93. Molecular characterization and endosymbiotic localization of the gene encoding D-ribulose 1,5-bisphosphate carboxylase-oxygenase (RuBisCO) form II in the deep-sea vestimentiferan trophosome, MICROBIOLOGY-SGM, 148, 1947-1957, 20020602
  94. Morphological studies on the bathyal ascidian, Megalodicopia hians Oka 1918 (Octacnemidae, Phlebobranchia), with remarks on feeding and tunic morphology, Zoological Science, 19, 1181-1189, 20020401
  95. Geological and microbial anomalies at the extinct submarine volcano, Shiribeshi Seamount, in the eastern margin of Japan Sea, Island Arc, 11, 269-281, 20020401
  96. Abundance and viability of the groundwater microbial communities from a borehole in the Tono uranium deposit area, central Japan, Microbes and Environments, 17, 63-74, 20020401
  97. Viable Cytophaga-like bacterium in the 0.2 mu m-filtrate seawater, SYSTEMATIC AND APPLIED MICROBIOLOGY, 24(4), 618-622, 20011201
  98. Coupling of thraustochytrids and POM, and of bacterio- and phytoplankton in a semi-enclosed coastal area: implication for different substrate preference by the planktonic decomposers, AQUATIC MICROBIAL ECOLOGY, 25(3), 293-300, 20010928
  99. Apparent microfloral response to organic degradation on bathyal seafloor: An analysis based on sediment fatty acids, MARINE ECOLOGY-PUBBLICAZIONI DELLA STAZIONE ZOOLOGICA DI NAPOLI I, 22(3), 267-282, 20010901
  100. Thraustochytrids: a neglected agent of the marine microbial food chain, Aquatic Ecosystem Health and Management, 4, 13-18, 20010801
  101. ★, Potential dietary effects on the fatty acid composition of the common jellyfish Aurelia aurita, Marine Biology, 138, 1029-1035, 20010501
  102. Potential dietary effects on the fatty acid composition of the common jellyfish Aurelia aurita, MARINE BIOLOGY, 138(5), 1029-1035, 20010501
  103. ★, Phylogenetic diversity of ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) large subunit genes of deep-sea microorganisms, Applied and Environmental Microbiology, 67, 1751-1765, 20010401
  104. Phylogenetic similarity of aerobic gram-negative halophilic bacteria from a deep-sea hydrothermal mound and Antarctic habitats, Polar Bioscience, 14, 1-9, 20010401
  105. Phylogenetic diversity of ribulose-1,5-bisphosphate carboxylase/oxygenase large-subunit genes from deep-sea microorganisms, APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 67(4), 1751-1765, 20010401
  106. Effect of UV radiation on the bioavailability of marine diatom-derived low-molecular-weight dissolved organic matter, Aquatic Ecosystem Health and Management, 3, 163-166, 20000401
  107. ★, Sea-floor fissures, biological communities and sediment faty acids of the Northern Okushiri Ridge, Japan Sea: Implications for possible methane seepage, Island Arc, 8, 232-244, 19990401
  108. ★, Biomass of thraustochytrid protoctists in coastal water, Marine Ecology Progress Series, 189, 27-33, 19990401
  109. A new, automatic hydrothermal fluid sampler using a shape memory alloy, Journal of Oceanography, 54, 241-246, 19980901
  110. Dive Europa: A search-for-life initiative, Biological Sciences in Space, 12, 126-130, 19980901
  111. A hypothetical microbial consortium that stabilizes oxygen-gradient in chemosynthetic microenvironment, Supramolecular Science, 5, 439-443, 19980801
  112. Abundance of thraustochytrids in coastal plankton, Marine Ecology Progress Series, 162, 105-110, 19980601
  113. Molecular distinction of two resemblant abalones, Journal of Marine Biotechnology, 6, 59-61, 19980101
  114. ★, Photoreactivation of UV-induced damage to embryos of a planktonic copepod, Journal of Plankton Research, 19, 783-787, 19971201
  115. Abundance and production of bacterioplankton along a transect of Ise Bay, Japan, Journal of Oceanography, 53, 579-583, 19971101
  116. Abundance, production and viability of bacterioplankton in the Seto Inland Sea, Journal of Oceanography, 53, 435-442, 19970901
  117. Intracellular occurrence of epsilon-Proteobacterial 16S rDNA sequences in the vestimentiferan trophiosome, Journal of Oceanography, 53, 193-197, 19970301
  118. Morphological diversity of the microbial population in a vestimentiferan tubeworm, Journal of Marine Biotechnology, 5, 119-123, 19970301
  119. The calanoid copepods: linking lower-higher trophic levels by linking lower-higher Reynolds numbers, Marine Ecology Progress Series, 136, 311-313, 19960801
  120. In situ fluorescence PCR with cultured cells of chum salmon, Journal of Marine Biotechnology, 3, 248-251, 19960701
  121. Photodegradation or photoalteration? Microbial assay of the effect of UV-B on dissolved organic matter, Marine Ecology Progress Series, 135, 309-310, 19960701
  122. Deep-sea hydrothermal vent microbiology, Science Journal KAGAKU (Iwanami Shoten Co.= Ltd.), 66(7), 492-499, 19960401
  123. Differential enumeration of intact and damaged marine planktonic bacteria based on cell membrane integrity, Journal of Aquatic Ecosystem Health, 5, 217-222, 19960401
  124. Biological community and sediment fatty acids associated with a deep-sea whale skeleton at the Torishima Seamount, Journal of Oceanography, 52, 1-15, 19960201
  125. In situ RT-PCR from the beta-tubulin within the abalone cells in primary cultures, Journal of Marine Biotechnology, 4, 75-81, 19960101
  126. Fossil worm tubes from the presumed cold-seep carbonates of the Miocene Hayama Group, central Miura Peninsula, Japan, Island Arc, 4, 199-208, 19950701
  127. Acclimatization if cultured salmon cells to a high salinity, Journal of Marine Biotechnology, 2, 227-229, 19950401
  128. Myogenesis in primary cell cultures from larvae of the abalone Haliotis rufescens, Molecular Marine Biology and Biotechnology, 3, 131-140, 19940601
  129. Microbial populations of hydrothermal fluid and plumes in the North Fiji Basin with reference to chemosynthesis, Marine Geology, 116, 243-253, 19940401
  130. Cellular fatty acids of marine agarolytic gliding bacteria, Systematic and Applied Microbiology, 17, 125-127, 19940201
  131. Extremely halotolerant Halomonas sp. isolated from a tar ball and its cellular fatty acid composition, Journal of Marine Biotechnology, 1, 151-157, 19930801
  132. The ets multigene family is onserved throughout the Metazoa, Nucleic Acids Research, 21, 3479-3483, 19930601
  133. Abundance and production of bacterioplankton in a eutrophic gradient of Shimoda Bay, Journal of Oceanography, 49, 657-665, 19930601
  134. Protoplasts of Gelidium robustum, Hydrobiologia, 260/261, 421-427, 19930501
  135. Characterization of agarolytic Microscilla isolates and their extracellular agarases, Systematic and Applied Microbiology, 16, 183-190, 19930101
  136. Immediate effect of freezing on the viability of a Bacillus strain isolated from deep-sea sediment, Bulletin of Japanese Society of Microbial Ecology., 7, 63-67, 19921101
  137. Abundane and growth of bacterioplankton inside and ouside the hydrothermal plumes of the North Fiji Basin, La Mer, 29, 18-22, 19910401
  138. Vertical distribution of bacterial abundance in the Northwest Pacific Ocean, Journal of Oceanographic Society of Japan, 46, 107-110, 19900601
  139. Sulfur bacteria originating from the water and organisms in a hydrothermally active area of the Mid-Okinawa Trough, Journal of Oceanographic Society of Japan, 46, 111-117, 19900601
  140. Growth characteristics of Thiobacterium sp. from the plume of hydrothermal vents of the North Fiji Basin, Marine Ecology Progress Series, 54, 199-202, 19890601
  141. Abundance and growth rate of bacterioplankton community in hydrothermal plumes of the North Fiji Basin, Deep-Sea Research, 36, 1379-1390, 19890501
  142. Effect of rapid oligotrphication by an aquatic treatment pilot plant on the microbial community of a mestotrophic bog. IV. Effect on the bacterioplankton community, Water= Air= and Soil pollution, 42, 421-432, 19880401
  143. Population growth rate of bacterioplankton community in a bog, Doh-Hoh-Numa Bog, Japan, Archivs fur Hydrobiologie, 111, 519-531, 19880201
  144. Salinity effect on the growth rate of bacterioplankton in the Teshio River estuary during winter, La Mer, 25, 175-183, 19870301
  145. Population growth rate of bacterioplankton community in a bog, Matsumi-Ike, Japan, Archivs fur Hydrobiologie, 104, 543-556, 19850101
  146. Structural Alteration of Humic Acids by Pseudomonas spp. from Deep Terrestrial Subsurface Diatomite Formations in Northernmost Japan, GEOMICROBIOLOGY JOURNAL, 31(8), 654-663, 2014
  147. Microbial Activity in the Subsurface Environment of the Tono Area and its Relation to Groundwater Chemistry, J. Geogr., 112(2), 277-287, 20030425
  148. Microbiological and ecological responses to global environmental changes in polar regions (MERGE): An IPY core coordinating project, POLAR SCIENCE, 3(3), 139-146, 2009
  149. Spore-forming halophilic bacteria isolated from Arctic terrains: Implications for long-range transportation of microorganisms, POLAR SCIENCE, 3(3), 163-169, 2009
  150. A haptophyte bearing siliceous scales: Ultrastructure and phylogenetic position of Hyalolithus neolepis gen. et sp nov (Prymnesiophyceae, Haptophyta), PROTIST, 157(2), 213-234, 2006
  151. Isolation and characterization of Pseudomonas strains capable of Fe(III) reduction with reference to redox response regulator genes, GEOMICROBIOLOGY JOURNAL, 23(3-4), 145-155, 2006
  152. Composition of archaeal, bacterial, and eukaryal RuBisCO genotypes in three Western Pacific arc hydrothermal vent systems, EXTREMOPHILES, 11(1), 191-202, 2007
  153. Long-term collection of benthic and benthopelagic organisms from a deep-water inlet offshore from Okinawa, Japan, MARINE ECOLOGY PROGRESS SERIES, 358, 301-307, 2008
  154. The development of Fe-nodules surrounding biological material mediated by microorganisms, ENVIRONMENTAL GEOLOGY, 55(6), 1363-1374, 2008
  155. Response of microbial community structure to natural and accelerated hydrarch successions in the boreal wetlands in northern Hokkaido, Japan, LIMNOLOGY, 11(3), 273-279, 2010
  156. Microbial Processes Forming Daily Lamination in an Aragonite Travertine, Nagano-yu Hot Spring, Southwest Japan, GEOMICROBIOLOGY JOURNAL, 28(2), 135-148, 2011
  157. Spatiotemporal variations in the abundances of the prokaryotic rRNA genes, pmoA, and mcrA in the deep layers of a peat bog in Sarobetsu-genya wetland, Japan, LIMNOLOGY, 12(1), 1-9, 2011
  158. Methanosarcina horonobensis sp nov., a methanogenic archaeon isolated from a deep subsurface Miocene formation, INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 61, 2503-2507, 2011
  159. Microflorae of aquatic moss pillars in a freshwater lake, East Antarctica, based on fatty acid and 16S rRNA gene analyses, POLAR BIOLOGY, 35(3), 425-433, 2012
  160. Eukaryotic phylotypes in aquatic moss pillars inhabiting a freshwater lake in East Antarctica, based on 18S rRNA gene analysis, POLAR BIOLOGY, 35(10), 1495-1504, 2012
  161. Phylogeographic analysis of filterable bacteria with special reference to Rhizobiales strains that occur in cryospheric habitats, ANTARCTIC SCIENCE, 25(2), 219-228, 2013
  162. Genus-specific quantitative PCR of thraustochytrid protists, MARINE ECOLOGY PROGRESS SERIES, 486, 1-12, 2013
  163. Oligoflexus tunisiensis gen. nov., sp nov., a Gram-negative, aerobic, filamentous bacterium of a novel proteobacterial lineage, and description of Oligoflexaceae fam. nov., Oligoflexales ord. nov and Oligoflexia classis nov., INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY, 64, 3353-3359, 2014
  164. Molecular distinction of two resemblant abalones, Haliotis discus discus and Haliotis discus hannai by 18S rDNA sequences, J. Mar. Biotechnol., 6(1), 59-61, 199803
  165. Dive Europa : A Search-for-Life Initiative, Biol. Sci. Space, 12(2), 126-130, 199806
  166. A New, Automatic Hydrothermal Fluid Sampler Using a Shape-Memory Alloy, Journal of Oceanography, 54(3), 241-246, 199806
  167. Abundance, viability and production of planktonic bacteria (and thraustochytrids) in coastal waters, Bulletin of the Plankton Society of Japan, 46(1), 43-49, 19990227
  168. Global distributions of euryhaline halophiles and their compatible solutes, Bioscience & industry, 61(6), 385-388, 20030601
  169. Deep Subsurface Biosphere : a New Look of Geo-Biological Resources, Journal of MMIJ, 120(1), 1-9, 20040125
  170. Search for Life in Deep Biospheres, Biological sciences in space, 17(4), 310-317, 20031201
  171. Endosymbiotic Microflora of the Vestimentiferan Tubeworm (Lamellibrachia sp.) from a Bathyal Cold Seep, Mar Biotechnol, 5(6), 593-603, 20031101
  172. Habitable zone, Biol. Sci. Space, 19(1), 8-24, 20050301
  173. Geological and microbial anomalies in the extinct submarine volcano, Shiribeshi Seamount, in the eastern margin of the Japan Sea, 11(4), 274-286, 20021201
  174. Extremosphere : Frontiers of the Global Biosphere, J. Geogr., 112(2), 226-233, 20030425
  175. Deep Subsurface Biosphere of a Hydrothermal Vent Field in the Manus Basin of the Western Pacific, J. Geogr., 112(2), 250-261, 20030425
  176. Fractosphere, the Site of Hydrogeological-microbial Interaction : Current and Future Perspectives, J. Geogr., 112(2), 288-301, 20030425
  177. Microorganisms as Environmental Markers, 1(1), 61-69, 19950331
  178. Fossil worm tubes from the presumed cold-seep carbonates of the Miocene Hayama Group, Central Miura Peninsula, Japan, The Island Arc, 4(3), 199-208, 19950901
  179. Sea-floor fissures, biological communities and sediment fatty acids of the Northern Okushiri Ridge, Japan Sea : Implications for possible methane seepage, Island Arc, 8(2), 232-244, 19990601
  180. A pilot system for degradation of the common jellyfish, Aurelia aurita, by marine bacterial enzyme, Bulletin of the Plankton Society of Japan, 52(1), 41-46, 20050225
  181. Growth Rates of Bacterioplankton Communities in the Teshio River EstuaryI.Bacterial Browth During the Latter Frozen Period, 6, 43-49,51, 198503
  182. Growth Rates of Bacterioplankton Communities in the Teshio River Etsuary II.Bacterial Growth during the Latter Nonfrozen Period, 7, 47-57, 198603
  183. Abundance and Viability of the Groundwater Microbial Communities from a Borehole in the Tono Uranium Deposit Area, Central Japan, Microbes and environments, 17(2), 63-74, 200206
  184. Identification by HPLC-MS of Carotenoids of the Thraustochytrium CHN-1 Strain Isolated from the Seto Inland Sea(Food & Nutrition Science), Bioscience, biotechnology, and biochemistry, 67(4), 884-888, 20030423
  185. Development of a New Diagnosis Method for Incipient Caries in Human Teeth Based on Thermal Images under Pulse Heating, JSME international journal. Series A, Solid mechanics and material engineering, 46(1), 93-98, 20030115
  186. 64A. Geochemistry of the hydrothermal systems in the Middle Okinawa Trough.(Abstracts of Papers Presented at the Fall Meeting of the Society), Bulletin of the Volcanological Society of Japan. Second series, 34(4), 198912
  187. Eco-physiological Studies on Microbial Contribution to the Deep-sea Hydrothermal Vent and Related Biological Communities (Lecture by the Member Awarded the Okada Prize of the Oceanographic Society of JAPAN for 1995), Umi no Kenkyu (Oceanography in Japan), 4(5), 423-432, 19951030
  188. Life on the "salty" edge of the Earth (Astroviology), Planetary People, 12(1), 9-13, 20030325
  189. Morphological Studies on the Bathyal Ascidian, Megalodicopia hians Oka 1918 (Octacnemidae, Phlebobranchia), with Remarks on Feeding and Tunic Morphology(Animal Diversity and Evolution), Zoological science, 19(10), 1181-1189, 20021025
  190. Development of an in situ Gene Analysis Device for Extreme Environmental Microbiology(Microbiology), Umi no Kenkyu (Oceanography in Japan), 14(2), 361-368, 20050305
  191. Extremely small-sized "nano" microbes in deep groundwaters and hydrothermal vent fluids(Life under Extreme Environments, International Symposium on Origins of Life and Astrobiology), Viva origino, 33(2), 20050810
  192. A record of Pleurobranchella nicobarica Thiele, 1925 : (Pleurobranchomopha : Pleurobranchidae) from off Kume Island, Ryukyu Islands, Southwestern Japan, 33(1), 29-31, 20021231
  193. Morphology and Distribution of Crystallite in Spherulitic Rhyolite from Shin-Iwo Island, Kagoshima, Japan, 54(3), 184-190, 20000525
  194. 246 Tectonic Movement of Northern Part of Eastern Margin of Japan Sea, 103, 19960320
  195. Redox buffer capacity of sedimentary rocks around uranium deposit : Study of water-mineral-microbe system at the Tono uranium deposit, Japan, 37(2), 71-82, 20030602
  196. O-40 Microbial visualization in nano-habitats, 108, 20010920
  197. Mixture of Kosa (Asian dust) and bioaerosols detected in the atmosphere over the Kosa particles source regions with balloon-borne measurements: Possibility of long-range transport, Air Quality, Atmosphere and Health, 2(1), 29-38, 200903
  198. Abundance of planktonic thraustochytrids and bacteria and the concentration of particulate ATP in the Greenland and Norwegian Seas, Polar bioscience, 20, 37-45, 200612
  199. Super bugs viewed from cosmobiology. Microbes on the Edge of Global Biosphere., Biol. Sci. Space, 14(4), 323-331, 2000
  200. Abundance and growth characteristics of the bacterioplankton inside and outside the hydrothermal vent plumes in the North Fiji Basin, La mer., 29(1), p18-22, 199105
  201. Abundance and Productivity of Bacterioplankton in a Eutrophication Gradient of Shimoda Bay, Journal of Oceanography, 49(6), p657-665, 199312

Publications such as books

  1. 2019/01/12, The Ecological Role of Micro-organisms in the Antarctic Environment, Patterns of Microorganisms Inhabiting Antarctic Freshwater Lakes with Special Reference to Aquatic Moss Pillars, Springer, 2019, 2019/1/12, Scholarly Book, Joint work, E, Ryosuke Nakai, Satoshi Imura, Takeshi Naganuma, Online ISBN: 978-3-030-02786-5 (Print ISBN: 978-3-030-02785-8); DOI: 10.1007/978-3-030-02786-5_2, 298
  2. 2018/.8/.1, Marine Ecology: Biotic and Abiotic Interactions, Geo-biological coupling of authigenic carbonate formation and autotrophic faunal colonization at deep-sea nethane seeps I: Geo-biological settings., IntechOpen, Rijeka, Croatia, 2018, 8, Scholarly Book, Single work, E, ISBN: 978-1-78923-449-7 (Print ISBN: 978-1-78923-448-0); DOI: 10.5772/intechopen.76976 [Open-access & peer-reviewed], 283, 25
  3. 2018/.8/.1, Marine Ecology: Biotic and Abiotic Interactions, Geo-biological coupling of authigenic carbonate formation and autotrophic faunal colonization at deep-sea nethane seeps II: Geo-biological landscapes, IntechOpen, Rijeka, Croatia, 2018, 8, Scholarly Book, Single work, E, ISBN: 978-1-78923-449-7 (Print ISBN: 978-1-78923-448-0) DOI: 10.5772/intechopen.78978 [Open-access & peer-reviewed], 283, 34
  4. 2015/10, Marine Protists: Diversity and Dynamics, Springer, 2015, 10, Dictionary/Encyclopedia, Joint work, E, Takeshi Naganuma, Kazuhiko Koike, Manabu Asakawa, Susumu Ohtsuka, etc.
  5. 2003/11, Land and Marine Hydrogeology, Elsevier B.V., 2003, 11, Scholarly Book, Cocompilation, 199
  6. 2002/12, Microbial Approaches to Aquatic Nutrition within Environmentally Sound Aquaculture Systems, World Aquaculture Society, 2002, 12, Scholarly Book, Cocompilation, 256
  7. 1999/09, Extremophiles in Deep-Sea Environments, Springer-Verlag Tokyo, 1999, 9, Scholarly Book, Single work
  8. 1996/04, High Pressure Bioscience and Biotechnology, Elsevier Science, 1996, 4, Scholarly Book, Cocompilation

Invited Lecture, Oral Presentation, Poster Presentation

  1. Generation and transportation of molecular oxygen to sub-ice ocean of Europa, ELSI International Symposium, 2015/01, With Invitation, English
  2. Possible life in the universe viewed from energy, size and membrane, Takeshi Naganuma, A Japanese-German Colloquium, 2015/12, With Invitation, English, Kiel, Germany

Social Activities

Organizing Academic Conferences, etc.

  1. 2013/05
  2. 2008/05
  3. 2007/11
  4. 2004/05
  5. 2003/09
  6. 2003/09
  7. 2002/10
  8. 2001/11
  9. 1999/06
  10. 1998/05
  11. 2000/01
  12. 1999/10

Other Social Contributions

  1. NEO JAPAN Conference for Futures, Neo Japan Co. Ltd., 2020/12/02, 2020/12/02, Online, Panelist, Meeting or assembly, General
  2. Online extension "Search for Life in the Universe", Possible extraterrestrial life inferred from extremophiles on the Earth, Office of Research and Academia-Government-Community Collaboration, Hiroshima University, 2020/12/10, 2020/12/10, Lecturer, Lecture, General