Affiliation
Faculty of Agriculture and Life Science Department of Biology
KOBAYASHI Kazuya
Degree
-
博士（理学）
Research Areas
-
Life Science / Developmental biology
-
Life Science / Morphology and anatomical structure
Professional Memberships
-
日本発生生物学会
-
日本動物学会
Papers
-
Sex-inducing effects toward planarians widely present among parasitic flatworms
Kiyono Sekii, Soichiro Miyashita, Kentaro Yamaguchi, Ikuma Saito, Yuria Saito, Sayaka Manta, Masaki Ishikawa, Miyu Narita, Taro Watanabe, Riku Ito, Mizuki Taguchi, Ryohei Furukawa, Aoi Ikeuchi, Kayoko Matsuo, Goro Kurita, Takashi Kumagai, Sho Shirakashi, Kazuo Ogawa, Kimitoshi Sakamoto, Ryo Koyanagi, Noriyuki Satoh, Mizuki Sasaki, Takanobu Maezawa, Madoka Ichikawa-Seki, Kazuya Kobayashi
iScience 26 ( 1 ) 105776 2023.1
-
Fractionation of a sex-inducing substance from flatworms using open-column chromatography and reverse-phase high-performance liquid chromatography
Sekii, K., Watanabe T., Ito, R., Yoshikawa, A., Ichikawa-Seki, M., Sakamoto, K., Kobayashi, K.
STAR Protocols 4 ( 4 ) 102625 2023.12
-
Sex-inducing activities of the land planarian Bipalium nobile extract fractions, obtained Using bioassay-guided fractionation, in the freshwater planarian Dugesia ryukyuensis
Makoto Kitamura, Hiroyuki Tanaka, Yurie Horiguchi, Sayaka Manta, Ikuma Saito, Hisashi Iwaya, Hikaru Okamoto, Nanna Nagao, Yumi Yanagihara, Yu Taguchi, Rei Tezuka, Takanobu Maezawa, Kiyono Sekii, Kazuya Kobayashi
Zoological Science 38 ( 6 ) 544 - 557 2021.11
-
Identification of novel yolk ferritins unique to planarians: planarians supply aluminum rather than iron to vitellaria in egg capsules.
Osamu Kawase, Hisashi Iwaya, Yoshiya Asano, Hiromoto Inoue, Seiya Kudo, Motoki Sasahira, Nobuyuki Azuma, Daisuke Kondoh, Madoka Ichikawa-Seki, Xuenan Xuan, Kimitoshi Sakamoto, Hikaru Okamoto, Hinaki Nakadate, Wataru Inoue, Ikuma Saito, Miyu Narita, Kiyono Sekii, Kazuya Kobayashi
Cell and tissue research 2021.7
-
D-Tryptophan enhances the reproductive organ-specific expression of the amino acid transporter homolog Dr-SLC38A9 involved in the sexual induction of planarian Dugesia ryukyuensis.
Takanobu Maezawa, Masaki Ishikawa, Kiyono Sekii, Go Nagamatsu, Ryohei Furukawa, Kazuya Kobayashi
Zoological letters 7 ( 1 ) 4 - 4 2021.3
-
Transcriptomic analysis reveals differences in the regulation of amino acid metabolism in asexual and sexual planarians.
Kiyono Sekii, Shunta Yorimoto, Hikaru Okamoto, Nanna Nagao, Takanobu Maezawa, Yasuhisa Matsui, Katsushi Yamaguchi, Ryohei Furukawa, Shuji Shigenobu, Kazuya Kobayashi
Scientific reports 9 ( 1 ) 6132 - 6132 2019.4
-
A comprehensive comparison of sex-inducing activity in asexual worms of the planarian Dugesia ryukyuensis: the crucial sex-inducing substance appears to be present in yolk glands in Tricladida.
Haruka Nakagawa, Kiyono Sekii, Takanobu Maezawa, Makoto Kitamura, Soichiro Miyashita, Marina Abukawa, Midori Matsumoto, Kazuya Kobayashi
Zoological letters 4 14 - 14 2018.6
-
The identification of ᴅ-tryptophan as a bioactive substance for postembryonic ovarian development in the planarian Dugesia ryukyuensis.
Kazuya Kobayashi, Takanobu Maezawa, Hiroyuki Tanaka, Hiroyuki Onuki, Yurie Horiguchi, Hiroshi Hirota, Tetsuo Ishida, Kihachiro Horiike, Yasutoshi Agata, Manabu Aoki, Motonori Hoshi, Midori Matsumoto
Scientific reports 7 45175 - 45175 2017.3
-
Light and electron microscopic studies of the intestinal epithelium in Notoplana humilis (Platyhelminthes, Polycladida): the contribution of mesodermal/gastrodermal neoblasts to intestinal regeneration.
Daisuke Okano, Sachiko Ishida, Sei-Ichi Ishiguro, Kazuya Kobayashi
Cell and tissue research 2015.6
-
Planarian D-amino acid oxidase is involved in ovarian development during sexual induction.
Takanobu Maezawa, Hiroyuki Tanaka, Haruka Nakagawa, Mizuki Ono, Manabu Aoki, Midori Matsumoto, Tetsuo Ishida, Kihachiro Horiike, Kazuya Kobayashi
Mechanisms of development 132 69 - 78 2014.5
-
The Dr-nanos gene is essential for germ cell specification in the planarian Dugesia ryukyuensis.
Haruka Nakagawa, Hirotsugu Ishizu, Ayako Chinone, Kazuya Kobayashi, Midori Matsumoto
The International journal of developmental biology 56 ( 1-3 ) 165 - 171 2012.4
-
Existence of two sexual races in the planarian species switching between asexual and sexual reproduction.
Kazuya Kobayashi, Takanobu Maezawa, Haruka Nakagawa, Motonori Hoshi
Zoological science 29 ( 4 ) 265 - 272 2012.4
-
Drpiwi-1 is essential for germline cell formation during sexualization of the planarian Dugesia ryukyuensis.
Haruka Nakagawa, Hirotsugu Ishizu, Reiko Hasegawa, Kazuya Kobayashi, Midori Matsumoto
Developmental biology 361 ( 1 ) 167 - 176 2012.1
-
Sex-inducing effect of a hydrophilic fraction on reproductive switching in the planarian Dugesia ryukyuensis (Seriata, Tricladida).
Kazuya Kobayashi, Motonori Hoshi
Frontiers in zoology 8 23 - 23 2011.10
-
Effects of 17β-estradiol and bisphenol A on the formation of reproductive organs in planarians.
Hitoshi Miyashita, Haruka Nakagawa, Kazuya Kobayashi, Motonori Hoshi, Midori Matsumoto
The Biological bulletin 220 ( 1 ) 47 - 56 2011.2
-
Production of asexual and sexual offspring in the triploid sexual planarian Dugesia ryukyuensis.
Kazuya Kobayashi, Sachiko Arioka, Motonori Hoshi, Midori Matsumoto
Integrative zoology 4 ( 3 ) 265 - 271 2009.9
-
Neoblast-enriched fraction rescues eye formation in eye-defective planarian 'menashi' Dugesia ryukyuensis.
Kazuya Kobayashi, Toshiyuki Hashiguchi, Taiichiro Ichikawa, Yugo Ishino, Motonori Hoshi, Midori Matsumoto
Development, growth & differentiation 50 ( 8 ) 689 - 696 2008.10
-
Production of diploid and triploid offspring by inbreeding of the triploid planarian Dugesia ryukyuensis.
Kazuya Kobayashi, Hirotsugu Ishizu, Sachiko Arioka, Jocelyn Padilla Cabrera, Motonori Hoshi, Midori Matsumoto
Chromosoma 117 ( 3 ) 289 - 296 2008.6
-
The Dugesia ryukyuensis database as a molecular resource for studying switching of the reproductive system.
Hideyuki Ishizuka, Takanobu Maezawa, Junpei Kawauchi, Hanae Nodono, Yukako Hirao, Osamu Nishimura, Haruka Nakagawa, Kiyono Sekii, Kenta Tasaka, Hiroshi Tarui, Kiyokazu Agata, Motonori Hoshi, Kazuya Kobayashi, Yasubumi Sakakibara, Midori Matsumoto
Zoological science 24 ( 1 ) 31 - 37 2007.1
-
Characterization of novel genes expressed specifically in the sexual organs of the planarian Dugesia ryukyuensis.
Sumitaka Hase, Emiko Kashiwagi, Kazuya Kobayashi, Motonori Hoshi, Midori Matsumoto
The International journal of developmental biology 51 ( 4 ) 345 - 349 2007
-
Characterization of the pigment produced by the planarian, Dugesia ryukyuensis.
Sumitaka Hase, Kazumasa Wakamatsu, Kengo Fujimoto, Akemi Inaba, Kazuya Kobayashi, Midori Matsumoto, Motonori Hoshi, Sumiko Negishi
Pigment cell research 19 ( 3 ) 248 - 249 2006.6
-
Comparative study of eye defective worm 'menashi' and regenerating wild-type in planarian, Dugesia ryukyuensis.
Yukiko Sato, Kazuya Kobayashi, Midori Matsumoto, Motonori Hoshi, Sumiko Negishi
Pigment cell research 18 ( 2 ) 86 - 91 2005.4
-
Switch from Asexual to Sexual Reproduction in the Planarian Dugesia ryukyuensis.
Motonori Hoshi, Kazuya Kobayashi, Sachiko Arioka, Sumitaka Hase, Midori Matsumoto
Integrative and comparative biology 43 ( 2 ) 242 - 246 2003.4
-
Transcriptional pattern of a novel gene, expressed specifically after the point-of-no-return during sexualization, in planaria.
Sumitaka Hase, Kazuya Kobayashi, Ryo Koyanagi, Motonori Hoshi, Midori Matsumoto
Development genes and evolution 212 ( 12 ) 585 - 592 2003.1
-
Seasonal changes in the sexualization of the planarian Dugesia ryukyuensis.
Kazuya Kobayashi, Sachiko Arioka, Motonori Hoshi
Zoological science 19 ( 11 ) 1267 - 1278 2002.11
-
Signification of the sexualizing substance produced by the sexualized planarians.
Kazuya Kobayashi, Sachiko Arioka, Sumitaka Hase, Motonori Hoshi
Zoological science 19 ( 6 ) 667 - 672 2002.6
-
Switching from asexual to sexual reproduction in the planarian Dugesia ryukyuensis: change of the fissiparous capacity along with the sexualizing process.
Kazuya Kobayashi, Motonori Hoshi
Zoological science 19 ( 6 ) 661 - 666 2002.6
-
Localization of mitochondrial ribosomal RNA on the chromatoid bodies of marine planarian polyclad embryos.
K Sato, T Sugita, K Kobayashi, K Fujita, T Fujii, Y Matsumoto, T Mikami, N Nishizuka, S Nishizuka, K Shojima, M Suda, G Takahashi, H Himeno, A Muto, S Ishida
Development, growth & differentiation 43 ( 2 ) 107 - 114 2001.4
-
プラナリアにおける生殖戦略転換機構
小林 一也
1999.3
-
Switching from Asexual to Sexual Reproduction in the Planarian Dugesia ryukyuensis: Bioassay System and Basic Description of Sexualizing Process
Kazuya Kobayashi, Ryo Koyanagi, Midori Matsumoto, Jocelyn Padilla Cabrera and Motonori Hoshi
Zoological science 1999
-
Switch from Asexual to Sexual Reproduction in the Planarian Dugesia ryukyuensis.
Kazuya Kobayashi, Ryo Koyanagi, Midori Matsumoto, Jocelyn and Motonori Hoshi
Invertebrate Reproduction & Development 36 ( 1-3 ) 153 - 158 1999
Books
-
動物学の百科辞典 日本動物学会編
小林一也（ Role： Joint author , 有性生殖と無性生殖−生殖戦略の多様性）
丸善出版 2018.9
-
Reproductive and Developmental Strategies: The Continuity of Life
K. Kobayashi, T. Kitano, Y. Iwao, M. Kondo（ Role： Joint editor）
Springer Japan 2018.6
-
シリーズ・生命の神秘と不思議 プラナリアたちの巧みな生殖戦略
小林一也、関井清乃（ Role： Joint author）
裳華房 2017.11
-
白神学入門 <2017> 弘前大学白神自然環境研究所 編
小林一也（ Role： Sole author）
弘前大学出版会 2017.3
-
弘前大学で見つけた一〇七の言の葉ノート−勉学 人生 世界観−
小林一也（ Role： Sole author）
弘前大学出版会 2014.6
-
身近な動物を使った実験２ プラナリア モノアラガイ・ナメクジ ミミズ
小林一也・松本緑（ Role： Joint author）
三共出版 2009.5
Review Papers
-
Sex-inducing substances terminate dormancy in planarian postembryonic reproductive development
Kiyono Sekii, Kazuya Kobayashi
Advances in Invertebrate (Neuro) Endocrinology, Volume 1: Phyla Other Than Arthropoda 2020.3
-
Reproductive strategies in planarians: Insights gained from the bioassay system for sexual induction in asexual Dugesia ryukyuensis worms
Maezawa, K. Sekii, M. Ishikawa, H. Okamoto, K. Kobayashi
Reproductive and Developmental Strategies: The Continuity of Life 175 - 201 2018.6
-
切っても死なない！？プラナリアから学ぶ生殖戦略
小林一也
青い森しんきん とれんど情報 456 ( 11月 ) 1 - 1 2016.11
-
プラナリアの生殖様式転換機構と配偶子幹細胞
小林一也，松本緑
細胞工学 29 ( 7 ) 670 - 674 2010.4
Awards
-
弘前大学表彰
2014.05
-
Zoological Science Award
2013.09
-
Fujii Award
2013.09
Social Activities
-
2022年度日本動物学会東北支部 親子で楽しむ動物学20
2022.08.06
-
日本動物学会第８７回沖縄大会 動物学ひろば
2016.11
-
日本動物学会第８６回新潟大会 動物学ひろば「見てみよう、多様な動物の世界」
2015.09
-
日本動物学会第８６回新潟大会 ミニ講演会「研究の世界で活躍する動物たち」
2015.09
-
日本動物学会第８５回大会仙台大会 「見てみよう触ってみようー多様な動物の世界ー」
2014.09
Media Coverage
-
テレビ朝日「ナニコレ珍百景」でのコメント
2020.09.13