Department of Environmental Life Sciences
Division of Genetic Ecology

Space and Adaptation Biology 分野

3-16kobayashi
Akie Kobayashi
キャンパス Katahira キャンパス
専攻分野 Plant Physiology, Plant Molecular Biology, Space Biology
連絡先 022-217-5717
E-mail kobaatige.tohoku.ac.jp
ホームページ http://www.ige.tohoku.ac.jp/tekio/
経歴 I graduated from the Faculty of Agriculture of Tohoku University and completed the master’s and doctorate degree courses of the Graduate School of Life Sciences at the same institution. After working as a postdoctoral fellow at the Graduate School of Life Sciences of Tohoku University, at the National Institute of Genetics, and at the Faculty of Science of Yamagata University, I became an assistant professor at the Graduate School of Life Sciences of Tohoku University from August 2012.
著書・論文 Recent papers:
  • Teppei Moriwaki, Yutaka Miyazawa, Akie Kobayashi, Hideyuki Takahashi. (2013) Molecular mechanism oh hydrotropism in seedling roots of Arabidopsis thaliana. Am. J. Bot. 100(1): 25-34.
  • Yutaka Miyazawa, Teppei Moriwaki, Mayumi Uchida, Akie Kobayashi, Nobuharu Fujii, Hideyuki Takahashi. (2012) Overexprresion of MIZU-KUSSEI1 enhances root hydrotropic response by retaining cell viability under hydrostimulated condition in Arabidopsis thaliana. Plant Cell Physiol. 53(11): 1926-1933.
  • Sayuri Tsukahara, Akira Kawabe, Akie Kobayashi, Tasuku Ito, Tomoyuki Aizu, Tadasu Shin-i, Atsushi Toyoda, Asao Fujiyama, Yoshiaki Tarutani, Tetsuji Kakutani. (2012) Centromere-targeted de novo integrations of an LTR retrotransposon of Arabidopsis lyrata. Genes Dev. 26 (7): 705-713.
  • Taku Sasaki, Akie Kobayashi, Hidetoshi Saze, Tetsuji Kakutani. (2012) RNAi-independent de novo DNA methylation revealed in Arabidopsis mutants of chromatin remodeling gene DDM1. Plant J. 70(5): 750-758.
  • Tomokazu Yamazaki, Yutaka Miyazawa, Akie Kobayashi, Teppei Moriwaki, Nobuharu Fujii, Hideyuki Takahashi. (2012) MIZ1, an essential protein for root hydrotropism, is associated with the cytoplasmic face of the endoplasmic reticulum membrane in Arabidopsis root cells. FEBS Letters 586(4): 398-402.
  • Wataru Matsunaga, Akie Kobayashi, Atsushi Kato, Hidetaka Ito. (2012) The effects of heat induction and the siRNA biogenesis pathway on the transgenerational transposition of ONSEN, a copia-like retrotransposon in Arabidopsis thaliana. Plant Cell Physiol. 53(5): 824-833.
  • Teppei Moriwaki, Yutaka Miyazawa, Akie Kobayashi, Mayumi Uchida, Chiaki Watanabe, Nobuharu Fujii, Hideyuki Takahashi. (2011) Hormonal regulation of lateral root development in Arabidopsis modulated by MIZ1 and requirement of GNOM activity for MIZ1 function. Plant Physiol. 157(3): 1209-1220.
  • Sayuri Tsukahara, Akie Kobayashi, Akira Kawabe, Oliver Mathieu, Asuka Miura, Tetsuji Kakutani. (2009) Bursts of retrotransposition reproduced in Arabidopsis. Nature. 461(7262): 423-426.
  • Yutaka Miyazawa, Yoshie Ito, Teppei Moriwaki, Akie Kobayashi, Nobuharu Fujii, Hideyuki Takahashi. (2009) A molecular mechanism unique to hydrotropism in roots. Plant Sci. 177 (4): 297-301.
  • Asuka Miura, Miyuki Nakamura, Soichi Inagaki, Akie Kobayashi, Hidetoshi Saze, Tetsuji Kakutani. (2009) An Arabidopsis jmjC domain protein protects transcribed genes from DNA methylation at CHG sites. EMBO J. 28(8): 1078-1086.
  • Yutaka Miyazawa, Akiko Takahashi, Akie Kobayashi, Tomoko Kaneyasu, Nobuharu Fujii, Hideyuki Takahashi. (2009) GNOM-mediated vesicular trafficking plays an essential role in hydrotropism of Arabidopsis roots. Plant Physiol. 49(2): 835-840.
  • Yutaka Miyazawa, Tetsuya Sakashita, Tomoo Funayama, Nobuyuki Hanada, Hiroshi Negishi, Akie Kobayashi, Tomoko Kaneyasu, Atsushi Ooba, Keita Morohashi, Takehiko Kakizaki, Seiichi Wada, Yasuhiko Kobayashi, Nobuharu Fujii, Hideyuki Takahashi. (2008) Effects of locally targeted heavy-ion and laser microbeam on root hydrotropism in Arabidopsis thaliana. J. Radiat Res. 49(4): 373-379.
  • Akie Kobayashi, Akiko Takahashi, Yoko Kakimoto, Yutaka Miyazawa, Nobuharu Fujii, Atsuahi Higashitani, Hideyuki Takahashi. (2007) A gene essential for hydrotropism in roots. Proc. Natl. Acad. Sci. U S A. 104(11): 4724-4729.
  • Tomoko Kaneyasu, Akie Kobayashi, Mayumi Nakayama, Nobuharu Fujii, Hideyuki Takahashi, Yutaka Miyazawa. (2007) Auxin response, but not its polar transport, plays a role in hydrotropism of Arabidopsis roots. J. Exp. Bot. 58(5): 1143-1150.
  • Nobuyuki Takahashi, Yutaka Yamazaki, Akie Kobayashi, Atsushi Higashitani, Hideyuki Takahashi. (2003) Hydrotropism interacts with gravitropism by degrading amyloplasts in seedling roots of Arabidopsis and radish. Plant Physiol. 132(2), pp805-810.
  • Hidetoshi Mizuno, Akie Kobayashi, Nobuharu Fujii, Masamichi Yamashita, Hideyuki Takahashi. (2002) Hydrotropic response and expression pattern of auxin-inducible gene, CS-IAA1, in the primary roots of clinorotated cucumber seedlings. Plant Cell Physiol. 43(7): 793-801.
  • Toshihumi Terajima, Hideki Nukui, Akie Kobayashi, Shin Fujimoto, Shuu Hase, Toshihito Yoshioka, Teruyoshi Hashiba, Shigeru Satoh. (2001) Molecular cloning and characterization of a cDNA for a novel ethylene receptor, NT-ERS1, of tobacco (Nicotiana tabacum L.). Plant Cell Physiol. 42(3): 308-313.
  • Hideyuki Takahashi, Nobuharu Fujii, Motoshi Kamada, Atsushi Higashitani, Yutaka Yamazaki, Akie Kobayashi, Mamoru Takano, Seiji Yamazaki, Tadashi Sakata, Hidetoshi Mizuno, Yasuko Kaneko, Takashi Murata, Shigeki Kamigauchi, Sachiko Aizawa, Izumi Yoshizaki, Toru Shimazu, Keiji Fukui (2000) Gravimorphogenesis of Cucurbitaceae plants: development of peg cells and graviperception mechanism in cucumber seedlings. Biol. Sci. Space 14(2): 64-74.
所属学会 The Japanese Society for Plant Physiologists, The Botanical Society of Japan, Japanese Society for Biological Sciences in Space, Tohoku Botanical Society

最近の研究について

Plant roots change their growth direction in response to environmental stimuli. For example, roots bend towards the greater amount of moisture by hydrotropism and elongate downward by gravitropism. I am conducting research focusing in particular on hydrotropism in roots. To date, I have identified the MIZ1 and MIZ2 genes as essential for hydrotropism in Arabidopsis roots. Currently, I am pursuing the studies to uncover the molecular functions of MIZ1 and MIZ2 proteins as well as to discover other molecules that regulate hydrotropism in roots. Also, I am adopting laser ablation to identify functional cells for hydrotropism in Arabidopsis roots.