論文 - 小林 一也
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Identification of an innexin required for termination of the asexual state in planarian reproductive switching
Nobuyoshi Kumagai, Michio Kuroda, Tosei Hanai, Masaki Fujita, Takaaki Hino, Shunta Yorimoto, Sayaka Manta, Shuzo Nakagawa, Moe Yokoyama, Leon Tajima, Riku Ito, Hikaru Yamada, Kota Miura, Makoto Kashima, Katsushi Yamaguchi, Shuji Shigenobu, Ryohei Furukawa, Kiyono Sekii, and Kazuya Kobayashi
PLOS Genetics 21 ( 11 ) 2025年11月
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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年12月
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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年01月
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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年11月
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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年07月
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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年03月
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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年04月
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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年06月
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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年03月
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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年06月
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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年05月
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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年04月
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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年04月
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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年01月
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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年10月
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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年02月
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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年09月
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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年10月
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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年06月
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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年01月
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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年
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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年06月
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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年04月
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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年04月
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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年01月
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Seasonal changes in the sexualization of the planarian Dugesia ryukyuensis.
Kazuya Kobayashi, Sachiko Arioka, Motonori Hoshi
Zoological science 19 ( 11 ) 1267 - 1278 2002年11月
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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年06月
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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年06月
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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年04月
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プラナリアにおける生殖戦略転換機構
小林 一也
1999年03月
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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年
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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年