Session Details
[U-17]Biogeochemistry of CO world
Mon. May 25, 2026 5:15 PM - 7:00 PM JST
Mon. May 25, 2026 8:15 AM - 10:00 AM UTC
Mon. May 25, 2026 8:15 AM - 10:00 AM UTC
Poster Hall Exhibition Hall 7&8, Makuhari Messe_4
convener:Yuichiro Ueno(Department of Earth and Planetary Sciences, Institute of Science Tokyo), Shino Suzuki(RIKEN), Kazumi Ozaki(Institute of Science Tokyo), Norio Kitadai(Japan Agency for Marine-Earth Science and Technology)
In this session, we will discuss the impact of carbon chemical species (CO2/CO/CH4) on the planetary evolution, prebiotic chemistry, and biological metabolism with the ultimate goal of elucidating the planetary setting suitable for the emergence of life. Following astronomical observations and planetary explorations identifying a growing number of extraterrestrial bodies that are potentially capable of sustaining life, search for lives in Universe has already begun. However, the fundamental question - what planetary conditions are crucial for the emergence of life - remains unsolved. In particular, although carbon monoxide (CO) must have been an abundant atmospheric component on the early Earth and Mars, its role in prebiotic and early metabolic processes are not well understood. Here, we seek for diverse research subjects on these topics. We also welcome discussions on future exploration of extraterrestrial lives based on the CO world concept.
[U17-P01]Experimental study on the recycling of glycolaldehyde through oxidation reaction in prebiotically plausible conditions
*Yuta Asakura1, Xiaofeng Zang1, Yuichiro Ueno1,2,3 (1.Institute of Science Tokyo, 2.Earth-Life Science Institute, Institute of Science Tokyo, Tokyo, Japan., 3.Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan.)
[U17-P02]Investigation of abiotic synthesis of the nucleosides by the solar energetic particle irradiation on the surface and in the atmosphere of celestial bodies based on laboratory experiments
*Koharu Fukazawa1, Tomoki Kimura1, Kosuke Fukui1 (1.Tokyo University of Science)
[U17-P03]Quantum Chemical Calculations on Metal-Catalyzed Deamidation of Asparagine Residues as Proteinogenic Amino Acids
*Ayato Mizuno1, Tomoki Nakayoshi1,2, Yuhki Ishimaru3, Mitsutaka Okumura3, Koichi Kato1,4, Akifumi Oda1 (1.Grad. Sch. Pharm., Meijo Univ., 2.Inst. Adv. Res., Nagoya Univ., 3.Grad. Sch. Sci., UOsaka, 4.Shonan Univ. Med. Sci.)
[U17-P04]Coupled photochemistry-ecosystem modeling of reducing Earth-like planets: Implications for methane-based biosignatures
*Tomoya Kimura1, Yoshiaki Endo1, Yasuto Watanabe2, Kazumi Ozaki1 (1.Institute of SCIENCE TOKYO, 2.National Institute for Environmental Studies)
[U17-P05]Retention of an NH3-rich Surface Environment on Early Mars via Ocean Dissolution
*Hiroto Kizu1, Kirara Arima2, Shungo Koyama1, Tatsuya Yoshida3, Naoki Terada1, Yuki Nakamura4 (1.Tohoku University, 2.Hokkaido University, 3.Institute of Science Tokyo, 4.The University of Tokyo)
[U17-P06]Reproduction of South Coast Low-Pressure Systems Using Machine Learning Models
*Komori Yuichiro1, Kazuya Yamazaki2, Yuki H. Takano3, Hiroaki Miura1 (1.The University of Tokyo, 2.Information Technology Center, The University of Tokyo, 3.Meteorological Research Institute)
[U17-P07]Coupled Climate and Sulfur Photochemistry in the Archean Atmosphere under Variable Volcanic Outgassing
*Tetsuo Taki1, Hiroyuki Kurokawa1 (1.The University of Tokyo)