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大谷 美沙都 おおたに みさと/准教授/生命系
先端生命科学専攻/生命機能解析学分野/植物分子遺伝学・植物分子生物学
https://plantfunkashiwa.jimdofree.com/

略歴
2000年3月 東京大学理学物生物学科卒業
2005年9月 東京大学大学院理学系研究科 博士課程修了(理学博士)
2005年10月 東京大学大学院理学系研究科 学術研究支援員
2006年4月 理化学研究所 植物科学研究センター 基礎科学特別研究員
2010年4月 理化学研究所 バイオマス工学研究プログラム 研究員
2014年4月 奈良先端科学技術大学院大学 助教
2019年4月より現職
教育活動
先端生命科学総合演習、学融合セミナー
研究活動
1)植物細胞の分化全能性発現を支える分子基盤の解明
2)植物の環境応答におけるバイオポリマーダイナミクスの役割の解明
3)木質バイオマス生合成の分子的理解と応用
[文献]
代表的原著論文(*責任著者)
1) Saelim L, Akiyoshi N, Tan TT, Ihara A, Yamaguchi M, Hirano K, Matsuoka M, *Demura T, *Ohtani M (2019) Arabidopsis Group IIId ERF proteins positively regulate primary cell wall-type CESA genes. J Plant Res 132: 117-129
2) Takenaka Y, Watanabe Y, Schuetz M, Unda F, Hill Jr JL, Phookaew P, Yoneda Y, Mansfield SD, Samuels L, *Ohtani M, *Demura T (2018) Patterned deposition of xylan and lignin is independent from that of the secondary wall cellulose of Arabidopsis xylem vessels. Plant Cell 30: 2663-2676
3) *Ohtani M#, Kawabe H#, *Demura T (2018) Evidence that thiol-based redox state is critical for xylem vessel cell differentiation. Plant Signal Behav 13: e1428512 (#contributed equally)
4) Kawabe H#, *Ohtani M#, Kurata T, Sakamoto T, *Demura T (2018) Protein S-nitrosylation regulates xylem vessel cell differentiation in Arabidopsis. Plant Cell Physiol 59: 17-29 (#contributed equally)
5) Tan TT, Endo H, Sano R, Kurata T, Yamaguchi M, *Ohtani M, *Demura T (2018) Arabidopsis VND1-VND3 contribute to xylem vessel element formation in the cotyledon. Plant Phyiol 176: 773?789
*Ohtani M, Ramachandran V, Tokumoto T, Takebayashi A, Ihara A, Matsumoto T, Hiroyama R, Nishikubo N, *Demura T. (2017) Identification of novel factors that increase enzymatic saccharification efficiency in Arabidopsis wood cells. Plant Biotechnol 34: 203-206
6) Bowmn JL, Kohchi T, Yamato KT., et al. (2017) Insights into land plant evolution garnered from the Marchantia polymorpha genome. Cell 171: 287-304
Yu X, Takebayashi A, *Demura T, *Ohtani M (2017) Differential expression of poplar sucrose nonfermenting1-related protein kinase 2 genes in response to abiotic stress and abscisic acid. J Plant Res 130: 929-940
7) Ohtani M, Morisaki K, Sawada Y, Sano R, Uy ALT, Yamamoto A, Kurata T, Nakano Y, Suzuki S, Matsuda M, Hasunuma T, Hirai MY, *Demura T (2016) Primary metabolism during biosynthesis of secondary wall polymers of protoxylem vessel elements. Plant Physiol 172: 1612-1624
8) *Ohtani M, Takebayashi A, Hiroyama R, Xu B, Kudo T, Sakakibara H, Sugiyama M, Demura T (2015) Cell dedifferentiation and organogenesis in vitro require more snRNA than does seedling development in Arabidopsis thaliana. J Plant Res 128: 371-380
9) Rejab NA, Nakano Y, Yoneda A, *Ohtani M, *Demura T (2015) Possible contribution of TED6 and TED7, secondary cell wall-related membrane proteins, to evolution of tracheary element in angiosperm lineage. Plant Biotechnol 32: 343-347
10) Xu B, *Ohtani M, Yamaguchi M, Toyooka K, Wakazaki M, Sato M, Kubo M, Hiwatashi Y, Murata T, Kurata T, Yoneda A, Kato K, Hasebe M, *Demura T (2014) Contribution of NAC Transcription Factors to Plant Adaptation to Land. Science 343: 1505-1508
11) *Numata K, Ohtani M, Yoshizumi T, Demura T, Kodama Y (2014) Local gene silencing in plants via synthetic dsRNA and carrier peptide. Plant Biotechnol J 12: 1027-1034
*Ohtani M, Demura T, Sugiyama M (2013) Arabidopsis ROOT INITIATION DEFECTIVE 1, a DEAH-box RNA helicase involved in pre-mRNA splicing, is essential for plant development. Plant Cell 25: 2056-2069
12) Ohtani M, Nishikubo N, Xu B, Yamaguchi M, Mitsuda N, Goue N, Shi F, Ohme-Takagi M, *Demura T (2011) A NAC domain protein family contributing to the regulation of wood formation in poplar. Plant J 67: 499-512
13) Ohtani M, Demura T, *Sugiyama M (2010) Particular significance of SRD2-dependent snRNA accumulation in polarized pattern generation during lateral root development of Arabidopsis. Plant Cell Physiol 51: 2002-2012
14) Yamaguchi M, Goue N, Igarashi H, Ohtani M, Nakano Y, Mortimer JC, Nishikubo N, Kubo M, Katayama Y, Kakegawa K, Dupree P, *Demura T (2010)VASCULAR-RELATED NAC-DOMAIN6 and VASCULAR-RELATED NAC-DOMAIN7 effectively induce transdifferentiation into xylem vessel elements under control of an induction system. Plant Physiol 153: 906-914
15) Yamaguchi M, Ohtani M, Mitsuda N, Kubo M, Ohme-Takagi M, Fukuda H, *Demura T (2010) VND-INTERACTING2, a NAC domain protein, negatively regulates xylem vessel formation in Arabidopsis. Plant Cell 22: 1249-1263
16) Ohtani M, Demura T, *Sugiyama M (2008) Differential requirement for the function of SRD2, an snRNA transcription activator, in various stages of plant development. Plant Mol Biol 66: 303-314
17) Ohtani M, *Sugiyama M (2005) Involvement of SRD2-mediated activation of snRNA transcription in the control of cell proliferation competence in Arabidopsis. Plant J 43: 479-490
その他
日本植物学会、日本植物生理学会、日本植物細胞分子生物学会、日本分子生物学会、日本RNA学会
Associate Editor of “Plant Molecular Biology” (2019年〜)、Advisory Editor of “Plant & Cell Physiology”(2019年〜)、Editorial Board of “Frontiers in Plant Science”(2018年〜)、Editorial Board of “Journal of Plant Journal” (2017年〜)等
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将来計画
本研究室では、「植物がどのように環境条件を捉え、応答し、細胞の増殖や分化の柔軟な制御を通して、動的な個体統御をなしえているのか?」を明らかにし、システムとしての生命機能の理解を目指します。
教員からのメッセージ
植物を材料に、生物がなぜ多様な機能を果たし得るのか、その仕組みの解明と応用に取り組んでいます。興味のある方、ぜひ一緒に、植物の謎に取り組みましょう。
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