Introduction (9:00 AM - 9:05 AM)
Session information
[E] Oral
M (Multidisciplinary and Interdisciplinary) » M-GI General Geosciences, Information Geosciences & Simulations
[M-GI35] Carbonate Biobiology: The Role of Biogenic Carbonates in the Carbon Cycle
Sun. May 24, 2026 9:00 AM - 10:30 AM Exhibition Hall Special Setting (5) (Exhibition Hall 7&8, Makuhari Messe)
Chairperson:Nishida Kozue(Institute of Science Tokyo), Okumura Taiga(Waseda University)
Formation of calcium carbonate (CaCO3) by living organisms has been regarded as a process that releases carbon dioxide (CO2). On the other hand, recent studies have shown that many organisms actively control internal pH and related chemical conditions during calcification.These results suggest that biological calcification may differ from an inorganic reaction and provide an opportunity to develop and reconsider this process beyond chemical-equilibrium theory, as a multi-step and multi-layered phenomenon.
This session will discuss the interdisciplinary framework of Carbonate Biobiology, which connects materials science, life science, ecological science and environmental science. The purpose is to understand biogenic carbonate formation across multiple hierarchical levels, from atoms and molecules to cells and the global environment.
Main topics include the molecular and nanoscale mechanisms of CaCO3 nucleation and crystal control by organic molecules, proton and elemental dynamics in calcifying microenvironments, isotope and trace-element incorporation, CO2 flux and modeling approaches, and applications to paleoenvironmental reconstruction and carbon fixation technologies, and reports on related technological developments are also welcome. Researchers from various fields such as geoscience, chemistry, biology, physics, mathematical science and computational science are invited to participate and exchange ideas through interdisciplinary discussion on how biogenic carbonate formation contributes to the carbon cycle at the Earth surface.
9:05 AM - 9:20 AM
*Michio Suzuki1 (1. Graduate School of Agricultural and Life Sciences, the University of Tokyo)
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9:20 AM - 9:35 AM
*Ko Yasumoto1, Anan Takahashi1, Mariko Iijima2, Michio Suzuki1,3, Takashi Nakamura4, Nanami Mizusawa1, Shugo Watabe1, Mina Hirose4, Jun Yasumoto5 (1. Kitasato University School of Marine Biosciences, 2. National Institute of Advanced Industrial Science and Technology (AIST), 3. The University of Tokyo, 4. University of the Ryukyus, 5. Research Institute for Humanity and Nature (RIHN))
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9:35 AM - 9:50 AM
*Takashi Toyofuku1, Yukiko Nagai1, Yue Horikawa2, Yugo Kato2, Satsuki Nagao2, Takashi Atsumi4, Jun Kawano3, Michio Suzuki2 (1. Japan Agency for Marine-Earth Science and Technology (JAMSTEC X-star), 2. Graduate School of Agricultural and Life Sciences, The University of Tokyo, 3. Fuculty of Science, Hokkaido University, 4. Mie Prefecture Fisheries Research Institute, Mie)
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9:50 AM - 10:05 AM
*Yuki Araki1, Haruki Meguro2, Taiga Okumura3, Jun Kawano4, Michio Suzuki2 (1. Kanazawa University, 2. The University of Tokyo, 3. Waseda University, 4. Hokkaido University)
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10:05 AM - 10:30 AM
[MGI35-05] Applications of Raman Spectroscopy on Carbonate Biominerals: Current State and Recent Progress.
★Invited Papers
Kyle A Conner1, Gabriel Stauring2, Thomas M DeCarlo3, Shiv K Sharma1, Nicholas J Hawco1, Przemyslaw Dera1, Richard E Zeebe1, *Joji Uchikawa1 (1. University of Hawaii at Manoa, 2. Hawaii Pacific University, 3. Tulane University)
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