Session Details
[U-12]Biogeochemistry of CO world
Thu. May 29, 2025 10:45 AM - 12:15 PM JST
Thu. May 29, 2025 1:45 AM - 3:15 AM UTC
Thu. May 29, 2025 1:45 AM - 3:15 AM UTC
Exhibition Hall Special Setting (1) Exhibition Hall 7&8, Makuhari Messe
convener:Yuichiro Ueno(Department of Earth and Planetary Sciences, Tokyo Institute of Technology), Norio Kitadai(Japan Agency for Marine-Earth Science and Technology), Shino Suzuki(RIKEN), Kazumi Ozaki(Tokyo Institute of Technology), Chairperson:Norio Kitadai(Japan Agency for Marine-Earth Science and Technology), Shino Suzuki(RIKEN)
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.
[U12-06]Prebiotic cyanide generation from amino acids★Invited Papers
*ZENING YANG1,2,4,6, Yamei Li1,4,6, Norio Kitadai3, Masahiro Yamamoto3, Yuichiro Ueno1,5, Ryuhei Nakamura1,2,4,6 (1.Institute of Science Tokyo, 2.School of Materials and Chemical Technology, Institute of Science Tokyo, 3.Japan Agency For Marine-Earth Science and Technology , 4.Biofunctional Catalyst Research Team, RIKEN Center for Sustainable Resource Science, 5.Department of Earth and Planetary Sciences, Institute of Science Tokyo, 6.Earth-Life Science Institute)
[U12-07]Photochemical synthesis of building blocks from a plausible CO atmosphere containing N2O
*Xiaofeng Zang1, KOTA MORI1, Takumi Udo1,2, Yoko Kebukawa1, Kensei Kobayashi1,2, Yuichiro Ueno1,3,4 (1.Institute of Science Tokyo, 2.Yokohama National University, 3.Earth-Life Science Institute, 4.Japan Agency for Marine-Earth Science and Technology)
[U12-08]Roles of CO in the formation of haze in early Earth, early Mars and Titan atmospheres
*Kensei Kobayashi1,2,3, Vladimir S. Airapetian4,5,6, Yuto Kajikiya2,3, Takumi Udo1, Ikeda Ibuki1,2,3, Kanji Nakajima2,3, Yoko Kebukawa2, Hiromi Shibata7, Naoto Hagura8 (1.Yokohama National University, 2.Institute of Science Tokyo, 3.RIKEN, 4.NASA Goddard Space Flight Center, 5.American University, 6.Kyoto University, 7.Kobe University, 8.Tokyo City University)
[U12-09]Supercritical CO2 Environment in the Subseafloor Drives Prebiotic Synthesis of Nucleic Acid Building Blocks
*Shotaro Tagawa1, Kohei Morino2,3, Kosuke Fujishima2,4 (1.Institute for Extra-cutting-edge Science and Technology Avant-garde Research (X-star), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 2.Earth-Life Science Institute (ELSI), Institute of Science Tokyo, 3.School of Life Science and Technology, Institute of Science Tokyo, 4.Graduate School of Media and Governance, Keio University)
[U12-10]Analyzing the Stability of Autocatalytic Chemical Reaction Networks Based on their Amplification Rate
*Hideshi Ooka1, Sahaya Vijay Jeyaraj1, Ryuhei Nakamura1,2 (1.RIKEN, 2.Science Tokyo)
[U12-11]Unraveling the evolution of early carbon fixation through dynamic tunnel structural changes in CO-catalyzing enzymes
*Kimiho Omae1, Takashi Fujishiro2, Shun'ichi Ishii3, Shino Suzuki1 (1.RIKEN Cluster for Pioneering Research, 2.Graduate School of Science and Engineering, Saitama University, 3.X-STAR, Japan Agency for Marine-Earth Science and Technology)