愛媛大学 沿岸環境科学研究センター 生態系解析部門(海洋分子生態学)

講師  大林 由美子

神戸大理学部卒,名大大学院理学研究科修了.愛媛大COE研究員,横浜国大および筑波大を経て,2015から現職.
農学部兼任、担当科目:環境基礎数学、
2016年度、2020年度愛媛大農学部ベストティーチャー賞 2020年日本プランクトン学会論文賞

原著論文

  • 32. Obayashi, Y., Kadoya, A., Kataoka, N., Kanda, K., Bak, S-M., Iwata, H. and Suzuki, S. (2020) Tetracycline resistance gene profiles in red seabream (Pagrus major) intestine and rearing water after oxytetracycline administration. Front. Microbiol., 11, 1764, doi: 10.3389/fmicb.2020.01764
  • 31. Obayashi, Y. and Suzuki, S. (2019) High growth potential of transiently 0.2-µm-filterable bacteria with extracellular protease activity in coastal seawater. Plankton and Benthos Research, 14, 276-286.
  • 30, Obayashi, Y., Bong, C.W. and Suzuki, S. (2017) Methodological considerations and comparisons of measurement results for extracellular proteolytic enzyme activities in seawater. Front. Microbiol.,8, article 1952, doi:10.3389/fmicb.2017.01952.
  • 29, Bien, T.L.T.,Thao, N.V., Kitamura, S-I., Obayashi, Y. and Suzuki, S. (2017) Release and constancy of an antibiotic resistance gene in seawater under grazing stress by ciliates and heterotrophic nano flagellates. Microbes Environ., 32,174-179. doi:10.1264/jsme2.ME17042
  • 28, Ngo Vy Thao, Akino Nozawa, Yumiko Obayashi, Shin-Ichi Kitamura, Taichi Yokokawa, Satoru Suzuki (2015): Extracellular proteases are released by ciliates in defined seawater microcosms.  Marine Environmental Research, 109, 95-102.           doi:10.1016/j.marenvres.2015.06.011
  • 27, Ngo Vy Thao, Yumiko Obayashi, Taichi Yokokawa, Satoru Suzuki (2014): Coexisting protist-bacterial community accelerates protein transformation in microcosm experiments.  Frontiers in Marine Science, 1:69.  doi:10.3389/fmars.2014.00069
  • 26, Kensei Kobayashi, Hajime Mita, Hikaru Yabuta, Kazumichi Nakagawa, Yukinori Kawamoto, Takeo Kaneko, Yumiko Obayashi, Kazuhiro Kanda, Satoshi Yoshida, Issay Narumi, Eiichi Imai, Hirofumi Hashimoto, Shin-ichi Yokobori, Akihiko Yamagishi, Tanpopo WG (2014): Space exposure of amino acids and their precursors in the Tanpopo Mission using the International Space Station.  Transactions of the Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, 12 (ists29), Pp_1-6.  doi: 10.2322/tastj.12.Pp_1
  • 25, Kuhan Chandru, Yumiko Obayashi, Takeo Kaneko, Kensei Kobayashi (2013): Formation of amino acid condensates partly having peptide bonds in a simulated submarine hydrothermal environment.  Viva Origino, 41(3), 24-28.
  • 24, Jun Kawai, Seema Jagota, Takeo Kaneko, Yumiko Obayashi, Yoshitaka Yoshimura, Bishun N. Khare, David W. Deamer, Christopher P. McKay, Kensei Kobayashi (2013): Self-assembly of tholins in environments simulating Titan liquidospheres: Implications for formation of primitive coacervates on Titan.  International Journal of Astrobiology, 12(4), 282-291.  doi: 10.1017/S1473550413000116
  • 23, Jun Kawai, Seema Jagota, Takeo Kaneko, Yumiko Obayashi, Bishun N. Khare, Christopher P. McKay, Kensei Kobayashi (2013): Titan tholins as amino acid precursors and their solubility in possible Titan liquidospheres  Chemistry Letters, 42(6), 633-635.  doi: 10.1246/cl.130101
  • 22, Kuhan Chandru, Eiichi Imai, Takeo Kaneko, Yumiko Obayashi, Kensei Kobayashi (2013): Survivability and abiotic reactions of selected amino acids in different hydrothermal system simulators.  Origins of Life and Evolution of Biospheres, 43(2), 99-108.  doi: 10.1007/s11084-013-9330-9
  • 21, Palash K. Sarker, Jun-ichi Takahashi, Yumiko Obayashi, Takeo Kaneko, Kensei Kobayashi (2013): Photo-alteration of hydantoins against UV light and its relevance to origin of life.  Advances in Space Research, 51, 2235-2240.  doi: 10.1016/j.asr.2013.01.029
  • 20, Chui Wei Bong, Yumiko Obayashi, Satoru Suzuki (2013): Succession of protease activity in seawater and bacterial isolates during starvation in a mesocosm experiment.  Aquatic Microbial Ecology, 69, 33-46.  doi: 10.3354/ame01618
  • 19, Palash K. Sarker, Jun-ichi Takahashi, Yumiko Obayashi, Takeo Kaneko, Kensei Kobayashi (2012): Photo-alteration of isovaline and its precursor 5-ethyl-5-methylhydantoin exposed to UV and g-ray radiation.  Viva Origino, 40(2), 4-8.
  • 18, Hideharu Kuwahara, Midori Eto, Yukinori Kawamoto, Hironari Kurihara, Takeo Kaneko, Yumiko Obayashi, and Kensei Kobayashi (2012): The use of ascorbate as an oxidation inhibitor in prebiotic amino acid synthesis: A cautionary note.  Origins of Life and Evolution of Biospheres, 42(6), 533-541.  doi: 10.1007/s11084-012-9296-z.
  • 17, Hironari Kurihara, Yoshinori Takano, Takeo Kaneko, Yumiko Obayashi, Kensei Kobayashi (2012): Stability of amino acids and related compounds in simulated submarine hydrothermal systems.  Bulletin of the Chemical Society of Japan, 85(5), 624-630.   doi: 10.1246/bcsj.20110349
  • 16, Hironari Kurihara, Hikaru Yabuta, Takeo Kaneko, Yumiko Obayashi, Yoshinori Takano, Kensei Kobayashi (2012): Formation of organic aggregates by heating the products of simulated primitive atmosphere experiments.  Chemistry Letters, 41(4), 441-443.  doi:10.1246/cl.2012.441  (IF: 1.300
  • 15, Kensei Kobayashi, Palash K. Sarker, Keisuke Ono, Yukinori Kawamoto, Yumiko Obayashi, Takeo Kaneko, Satoshi Yoshida, Hajime Mita, Hikaru Yabuta, Akihiko Yamagishi (2012): Formation, Alteration and Delivery of Exogenous High Molecular Weight Organic Compounds: Objectives of the Tanpopo Mission from the Point of View of Chemical Evolution.  Transactions of the Japan Society for Aeronautical and Space Sciences, Aerospace Technology Japan, 10 (ists28), Tp_7-11.  doi: 10.2322/tastj.10.Tp_7
  • 14, Palash K. Sarker, Jun-ichi Takahashi, Yukinori Kawamoto, Yumiko Obayashi, Takeo Kaneko, Kensei Kobayashi (2012): Photostability of Isovaline and its Precursor Molecule Exposed to Simulated Space Radiation.  International Journal of Molecular Sciences, 13(1), 1006-1017.  doi:10.3390/ijms13011006
  • 13, Chui Wei Bong, Yumiko Obayashi, Satoru Suzuki (2011): Effect of exposure of zinc at low concentration to bacterial production in seawater.  Memoirs of Faculty of Agriculture, Ehime University, 56, 41-45.
  • 12, Yumiko Obayashi, Nahomi Ueoka, Satoru Suzuki (2010): Degradation and utilization of protein derived from Pseudomonas aeruginosa by marine microbial community.  Journal of Oceanography, 66, 513-521.  doi: 10.1007/s10872-010-0043-7
  • 11, Chui Wei Bong, Francesca Malfatti, Farooq Azam, Yumiko Obayashi, Satoru Suzuki (2010): The effect of zinc exposure on the bacteria abundance and proteolytic activity in seawater  In: N. Hamamura, S. Suzuki, S. Mendo, C. M. Barroso, H. Iwata and S. Tanabe (eds.), Interdisciplinary Studies on Environmental Chemistry, Vol. 3, Biological Responses to Chemical Contaminants: From Molecular to Community Level, TERRAPUB, Tokyo, 57-63.
  • 10, Chui Wei Bong, Yumiko Obayashi, Satoru Suzuki (2009): Changes in proteolytic activities in stored seawater and bacterial isolates.  In: Y. Obayashi, T. Isobe, A. Subramanian, S. Suzuki, S. Tanabe (eds.), Interdisciplinary Studies on Environmental Chemistry, Vol. 2, Environmental Research in Asia for Establishing a Scientist's Network, TERRAPUB, Tokyo, 287-291.
  • 9, Kwang-Hyeon Chang, Hideyuki Doi, Yuichiro Nishibe, Yumiko Obayashi, Shin-ichi Nakano (2009): Spatial and temporal distribution of zooplankton communities of coastal marine waters receiving different human activities (fish and pearl oyster farmings).  The Open Marine Biology Journal, 3, 83-88.  doi: 10.2174/187445080903010083
  • 8, Yumiko Obayashi, Satoru Suzuki (2008): Adsorption of extracellular prtoteases in seawater onto filters during size fractionation.  Journal of Oceanography, 64, 367-372.  doi: 10.1007/s10872-008-0029-x
  • 7, Yumiko Obayashi, Satoru Suzuki (2008): Occurrence of exo- and endopeptidases in dissolved and particulate fraction of coastal seawater.  Aquatic Microbial Ecology, 50, 231-237.  doi: 10.3354/ame01169
  • 6, Hideyuki Doi, Kwang-Hyon Chang, Yumiko Obayashi, Mizuho Yoshihara, Mary Shime, Takako Yamamoto, Yuichiro Nishibe, Shin-ichi Nakano (2008): Attached microalgae contribute to planktonic food webs in bays with fish and pearl oyster farms.  Marine Ecology Progress Series, 353, 107-113.  doi: 10.3354/meps07202
  • 5, Yumiko Obayashi, Satoru Suzuki (2007): Microbial degradation of organic matter in seawater –Insights from the activity of proteolytic enzymes–  In: S. Tanabe, H. Takeoka, T. Isobe, Y. Nishibe (eds.), Chemical Pollution and Environmental Changes, Universal Academy Press, Tokyo, 311-313.
  • 4, Toshiya Katano, Atsushi Kaneda, Naoto Kanzaki, Yumiko Obayashi, Akihiko Morimoto, Goh Onitsuka, Hideichi Yasuda, Sotaro Mizutani, Yoshihide Kon, Kazuhiro Hata, Hidetaka Takeoka, Shin-ichi Nakano (2007): Distribution of prokaryotic picophytoplankton from Seto Inland Sea to the Kuroshio region, with special reference to ‘Kyucho’ events.  Aquatic Microbial Ecology, 46, 191-201.  doi: 10.3354/ame046191
  • 3, Yumiko Obayashi, Satoru Suzuki (2005): Proteolytic enzymes in coastal surface seawater: Significant activity of endopeptidases and exopeptidases.  Limnology and Oceanography, 50, 722-726.  doi: 10.4319/lo.2005.50.2.0722
  • 2, Yumiko Obayashi, Eiichiro Tanoue (2002): Growth and mortality rates of phytoplankton in the northwestern North Pacific estimated by the dilution method and HPLC pigment analysis.  Journal of Experimental Marine Biology and Ecology, 280, 33-52.  doi: 10.1016/S0022-0981(02)00365-9
  • 1, Yumiko Obayashi, Eiichiro Tanoue, Koji Suzuki, Nobuhiko Handa, Yukihiro Nojiri, Chi Shing Wong (2001): Spatial and temporal variabilities of phytoplankton community structure in the northern North Pacific as determined by phytoplankton pigments.  Deep-Sea Research I, 48, 439-469.  doi: 10.1016/S0967-0637(00)00036-4

著作・総説 (日本語)

  • 大林由美子: 菌体外酵素. 『環境と微生物の事典』(分担執筆),日本微生物生態学会編,朝倉書店,2014年7月刊行,p.125-126

このページのTOPへ

主な研究分野

  • 海洋での生物地球化学的物質循環における微生物群集の機能
  • 水圏生態系における微生物間相互作用
このページのTOPへ