研究者情報
researchmap URL
研究活動情報
論文
- Kenichiro Sugitani; Akizumi Ishida; Kohei Sasaki; Motoko Igisu; Minako Hashiguchi
Carbonaceous film-like microstructures from the ca. 3.0 Ga Farrel Quartzite in the Pilbara Craton, Western Australia: their biogenicity and implications for diversity of Archean biofilm builders
PRECAMBRIAN RESEARCH, 2026年07月15日
440
［査読有り］ - Kenichiro Sugitani; Kohei Sasaki; Akizumi Ishida; Motoko Igisu; Kaho Ishibashi; Mariko Yamamoto; Minako Hashiguchi; Heda Agic; Stanley M. Awramik
Morphology and C-isotopic composition affirm biogenicity of Mesoarchean sphaeromorph organic-walled microfossils from the ∼3.0 Ga Farrel Quartzite, Western Australia
PRECAMBRIAN RESEARCH, 2026年06月01日
437
［査読有り］ - Motoko Igisu; Kentaro Tanaka; Naoto Takahata; Ken Takai; Yuji Sano; Tsuyoshi Komiya
Reassessing early traces of life from the Eoarchean metasedimentary rocks in Labrador, Canada: carbon isotope compositions for individual graphitic grains
PRECAMBRIAN RESEARCH, 2026年06月01日
437
［査読有り］ - Chen Chen; Ruiqin Yi; Motoko Igisu; Rehana Afrin; Mahendran Sithamparam; Kuhan Chandru; Yuichiro Ueno; Linhao Sun; Tommaso Laurenzi; Ivano Eberini; Tommaso P. Fraccia; Anna Wang; H. James Cleaves; Tony Z. Jia
Primitive homochiral polyester formation driven by tartaric acid and calcium availability
Proceedings of the National Academy of Sciences, 2025年03月21日
122, 12
［査読有り］ - Chen Chen; Ruiqin Yi; Motoko Igisu; Chie Sakaguchi; Rehana Afrin; Christian Potiszil; Tak Kunihiro; Katsura Kobayashi; Eizo Nakamura; Yuichiro Ueno; André Antunes; Anna Wang; Kuhan Chandru; Jihua Hao; Tony Z Jia
Spectroscopic and Biophysical Methods to Determine Differential Salt-Uptake by Primitive Membraneless Polyester Microdroplets.
Small methods, 2023年12月
7, 12, e2300119
［査読有り］ - 木村 凜太朗; 萬年 一剛; 熊谷 英憲; 松井 洋平; 伊規須 素子; 高野 淑識
箱根温泉・大涌谷の「黒たまご」黒色物質の起源推定
分析化学, 2023年07月05日
72, 7.8, 249, 256
［査読有り］ - Motoko Igisu; Masayuki Miyazaki; Sanae Sakai; Satoshi Nakagawa; Hiroyuki D Sakai; Ken Takai
Domain-level Identification of Single Prokaryotic Cells by Optical Photothermal Infrared Spectroscopy.
Microbes and environments, 2023年
38, 4
［査読有り］ - Imene Kerraouch; Yoko Kebukawa; Addi Bischoff; Michael E. Zolensky; Elias Wölfer; Jan L. Hellmann; Motoo Ito; Ashley King; Mario Trieloff; Jean-Alix Barrat; Phillipe Schmitt-Kopplin; Andreas Pack; Markus Patzek; Romy D. Hanna; Thomas Fockenberg; Yves Marrocchi; Marc Fries; Jérémie Mathurin; Emmanuel Dartois; Jean Duprat; Cécile Engrand; Ariane Deniset; Alexandre Dazzi; Kento Kiryu; Motoko Igisu; Takazo Shibuya; Daisuke Wakabayashi; Shohei Yamashita; Yasuo Takeichi; Yoshio Takahashi; Takuji Ohigashi; Yu Kodama; Masashi Kondo
Heterogeneous nature of the carbonaceous chondrite breccia Aguas Zarcas – Cosmochemical characterization and origin of new carbonaceous chondrite lithologies
Geochimica et Cosmochimica Acta, 2022年10月
334, 155, 186
［査読有り］ - Motoko Igisu; Yuichiro Ueno; Tsuyoshi Komiya; Stanley M. Awramik; Yuka Ikemoto; Ken Takai
Spatial distribution of organic functional groups in Ediacaran acritarchs from the Doushantuo Formation in South China as revealed by micro-FTIR spectroscopy
Precambrian Research, 2022年06月
373, 106628, 106628
［査読有り］ - Motoko Igisu; Yoshio Takahashi; Katsuyuki Uematsu; Yasuo Takeichi; Yuichiro Ueno; Ken Takai
STXM-XANES analyses of carbonaceous matter in seafloor hydrothermal deposits from the similar to 3.5 Ga Dresser Formation in the North Pole area, Western Australia
GEOCHEMICAL JOURNAL, 2022年
56, 4, 129, 133
［査読有り］ - Yoko Kebukawa; Michael. E. Zolensky; Cyrena A. Goodrich; Motoo Ito; Nanako O. Ogawa; Yoshinori Takano; Naohiko Ohkouchi; Kento Kiryu; Motoko Igisu; Takazo Shibuya; Matthew A. Marcus; Takuji Ohigashi; James Martinez; Yu Kodama; Muawia H. Shaddad; Peter Jenniskens
Organic matter in carbonaceous chondrite lithologies of Almahata Sitta: Incorporation of previously unsampled carbonaceous chondrite lithologies into ureilitic regolith
METEORITICS & PLANETARY SCIENCE, 2021年07月
56, 7, 1311, 1327
［査読有り］ - Kento Kiryu; Yoko Kebukawa; Motoko Igisu; Takazo Shibuya; Michael E. Zolensky; Kensei Kobayashi
Kinetics in thermal evolution of Raman spectra of chondritic organic matter to evaluate thermal history of their parent bodies
METEORITICS & PLANETARY SCIENCE, 2020年08月
55, 8, 1848, 1864
［査読有り］ - Yoshinori Takano; Keita Yamada; Chisato Okamoto; Hirotaka Sawada; Ryuji Okazaki; Kanako Sakamoto; Yoko Kebukawa; Kento Kiryu; Takazo Shibuya; Motoko Igisu; Hajime Yano; Shogo Tachibana
Chemical assessment of the explosive chamber in the projector system of Hayabusa2 for asteroid sampling
EARTH PLANETS AND SPACE, 2020年07月
72, 1
［査読有り］ - Motoko Igisu; Tsuyoshi Komiya; Stanley M. Awramik; Yuka Ikemoto; Yechuan Geng; Hiroki Uehara; Ken Takai
Fourier transform infrared microspectroscopic characterization of Neoproterozoic organic microfossils from the Fifteenmile Group in Yukon, Canada
ISLAND ARC, 2019年09月
28, 5
［査読有り］ - Motoko Igisu; Yuichiro Ueno; Ken Takai
FTIR microspectroscopy of carbonaceous matter in similar to 3.5 Ga seafloor hydrothermal deposits in the North Pole area, Western Australia
PROGRESS IN EARTH AND PLANETARY SCIENCE, 2018年12月
5
［査読有り］ - Satoru Nakashima; Yoko Kebukawa; Norio Kitadai; Motoko Igisu; Natsuki Matsuoka
Geochemistry and the Origin of Life: From Extraterrestrial Processes, Chemical Evolution on Earth, Fossilized Life's Records, to Natures of the Extant Life
LIFE-BASEL, 2018年12月
8, 4
［査読有り］ - Motoko Igisu; Tadashi Yokoyama; Yuichiro Ueno; Satoru Nakashima; Mie Shimojima; Hiroyuki Ohta; Shigenori Maruyama
Changes of aliphatic C-H bonds in cyanobacteria during experimental thermal maturation in the presence or absence of silica as evaluated by FTIR microspectroscopy
GEOBIOLOGY, 2018年07月
16, 4, 412, 428
［査読有り］ - Takayuki Tashiro; Akizumi Ishida; Masako Hori; Motoko Igisu; Mizuho Koike; Pauline Mejean; Naoto Takahata; Yuji Sano; Tsuyoshi Komiya
Early trace of life from 3.95 Ga sedimentary rocks in Labrador, Canada
NATURE, 2017年09月
549, 7673, 516, +
［査読有り］ - Motoko Igisu; Tsuyoshi Komiya; Yuka Ikemoto; Yechuan Geng; Hiroki Uehara
Studying microscale distributions of aliphatic C-H bonds in Neoproterozoic prokaryotic fossils using SR micro-FTIR
GEOCHEMICAL JOURNAL, 2017年
51, 6, 589, 594
［査読有り］ - Motoko Igisu; Tsuyoshi Komiya; Mika Kawashima; Satoru Nakashima; Yuichiro Ueno; Jian Han; Degan Shu; Yong Li; Junfeng Guo; Shigenori Maruyama; Ken Takai
FTIR microspectroscopy of Ediacaran phosphatized microfossils from the Doushantuo Formation, Weng'an, South China
GONDWANA RESEARCH, 2014年04月
25, 3, 1120, 1138
［査読有り］ - Takazo Shibuya; Miyuki Tahata; Kouki Kitajima; Yuichiro Ueno; Tsuyoshi Komiya; Shinji Yamamoto; Motoko Igisu; Masaru Terabayashi; Yusuke Sawaki; Ken Takai; Naohiro Yoshida; Shigenori Maruyama
Depth variation of carbon and oxygen isotopes of calcites in Archean altered upper oceanic crust: Implications for the CO2 flux from ocean to oceanic crust in the Archean
EARTH AND PLANETARY SCIENCE LETTERS, 2012年03月
321, 64, 73
［査読有り］ - Motoko Igisu; Ken Takai; Yuichiro Ueno; Manabu Nishizawa; Takuro Nunoura; Miho Hirai; Masanori Kaneko; Hiroshi Naraoka; Mie Shimojima; Koichi Hori; Satoru Nakashima; Hiroyuki Ohta; Shigenori Maruyama; Yukio Isozaki
Domain-level identification and quantification of relative prokaryotic cell abundance in microbial communities by Micro-FTIR spectroscopy
ENVIRONMENTAL MICROBIOLOGY REPORTS, 2012年02月
4, 1, 42, 49
［査読有り］ - Motoko Igisu; Yuichiro Ueno; Mie Shimojima; Satoru Nakashima; Stanley M. Awramik; Hiroyuki Ohta; Shigenori Maruyama
Micro-FTIR spectroscopic signatures of Bacterial lipids in Proterozoic microfossils
PRECAMBRIAN RESEARCH, 2009年09月
173, 1-4, 19, 26
［査読有り］ - Motoko Igisu; Satoru Nakashima; Yuichiro Ueno; Stanley M. Awramik; Shigenori Maruyama
In situ infrared microspectroscopy of similar to 850 million-year-old prokaryotic fossils
APPLIED SPECTROSCOPY, 2006年10月
60, 10, 1111, 1120
［査読有り］ - 伊規須 素子; 太田 啓之; 丸山 茂徳; 下嶋 美恵; 上野 雄一郎; 中嶋 悟; 横山 正
シアノバクテリアの珪化実験：顕微赤外分光法による加熱その場観測
日本地球化学会年会要旨集, 2006年
53, 171, 171
MISC
- Motoko Igisu; Yuichiro Ueno; Mie Shimojima; Satoru Nakashima; Hiroyuki Ohta; Shigenori Maruyama
Micro FT-IR Spectroscopic Analysis of Modern and Proterozoic Prokaryotic Fossil: Evidence of Existence of Lipids in Proterozoic Prokaryote?
ORIGINS OF LIFE AND EVOLUTION OF BIOSPHERES, 2009年08月
39, 3-4, 372, 373 - Motoko Igisu; Satoru Nakashima; Yuichiro Ueno; Stanley M. Awramik; Shigenori Maruyama
IR and Raman microspectroscopy for the characterization of ancient life
ORIGINS OF LIFE AND EVOLUTION OF THE BIOSPHERE, 2006年06月
36, 3, 310, 311
書籍等出版物
- Tewari, V. C.; Seckbach, J., 分担執筆, Micro-FTIR Spectroscopic Imaging of ~1,900 Ma Stromatolitic Chert
Stromatolites : interaction of microbes with sediments
Springer, 2011年
9789400703964
講演・口頭発表等
- Igisu, M.; Tanaka, K.; Takahata, N.; Takai, K.; Sano. Y.; Komiya, T.
Multiple origins of graphite in Eoarchean metasedimentary rocks from Labrador, Canada inferred from in situ carbon isotope analyses
JpGU-AGU Joint Meeting 2026, 2026年05月29日, ［招待有り］ - 杉谷健一郎; 石田章純; 伊規須素子; 安藤卓人; 橋口未奈子
西オーストラリア・ピルバラ地塊における太古代(3.0Ga)大型球状アクリタークの産出について
日本地球惑星科学連合大会予稿集(Web), 2023年 - 伊規須素子
顕微赤外分光法で地球の初期微生物化石に生体分子の痕跡を探す
日本放射光学会年会・放射光科学合同シンポジウム(Web), 2020年, ［招待有り］ - TASHIRO Takayuki; ISHIDA Akizumi; HORI Masako; IGISU Motoko; SANO Yuji; KOMIYA Tsuyoshi
カナダ・ラブラドル,サグレック岩体(39.5億年前)の堆積岩の炭素同位体比と化学組成:最古生命の痕跡と生息環境
日本地球惑星科学連合大会予稿集(Web), 2016年 - TASHIRO Takayuki; ISHIDA Akizumi; HORI Masako; IGISU Motoko; SANO Yuji; KOMIYA Tsuyoshi
カナダ・ラブラドル,サグレック岩体の初期太古代(>3.95Ga)堆積岩中の炭質物と炭酸塩の炭素同位体比
日本地球惑星科学連合大会予稿集(Web), 2015年 - 田代貴志; 堀真子; 石田章純; 伊規須素子; 佐野有司; 小宮剛
カナダ,ラブラドル地域,初期太古代(39.6億年前以前)堆積岩中の炭質物の産状と炭素同位体:最古生命の痕跡の探索
日本地質学会学術大会講演要旨, 2014年
