Exploration of carbon monoxide utilizing microorganisms towards carbon recycling.

2013 Fiscal Year Final Research Report

• Project/Area Number: 23651070
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Environmental technology/Environmental materials
• Research Institution: Kyoto University
• Principal Investigator: SAKO Yoshihiko 京都大学, (連合)農学研究科(研究院), 教授 (60153970)
• Co-Investigator(Kenkyū-buntansha): YOSHIDA Takashi 京都大学, 農学研究科, 准教授 (80305490)
• Project Period (FY): 2011 – 2013
• Keywords: 熱水環境 / 水素 / 一酸化炭素 / 一酸化炭素資化性菌 / 好熱菌 / COデヒドロゲナーゼ

Research Abstract

To construct a platform towards next-generation technology for recycling of carbon dioxide (CO2), we explored novel hyperthermophilic microorganisms possessing carbon monoxide dehydrogenases (CODHs) that can catalyze both CO oxidation and CO2 reduction (carboxydotrophic bacteria). We isolated a novel carboxydotrophic hydrogenogenic bacterium strain KKC1 from a marine sediment core sample. This bacterium grew chemolithotrophically producing H2 from CO oxidation with reduction of oxidized iron or sulfides. We also showed that carboxydotrophic bacteria may be dominate in hot environments.

Research Products

• [Journal Article] Quantitative detection of carboxydotrophic bacteria Carboxydothermus in a hot aquatic environment (2013)
  • Author(s): Yoneda, Y., Yoshida, T., Daifuku, T., Kitamura, T., Inoue, T., Kano, S. and Sako, Y
  • Journal Title: Fundam. Appl. Limnol Volume: 182 Pages: 161-170
  • DOI: 10.1127/1863-9135/2013/0374
  • Peer Reviewed
• [Presentation] 熱水環境中の一酸化炭素資化性好熱Carboxydothermus の分子生態学的研究 (2013)
  • Author(s): 鹿野早苗・米田恭子・吉田天士・北村崇行・大福高史・井上喬裕・福山宥斗・高尾郷介・左子芳彦
  • Organizer: 第29回微生物生態学会大会
  • Place of Presentation: 鹿児島大学, 鹿児島県鹿児島市
  • Year and Date: 20131123-25
• [Presentation] 一酸化炭素資化性好熱菌Carboxydothermus pertinax のCO 代謝 (2013)
  • Author(s): 福山宥斗・米田恭子・高尾郷介・大福高史・井上喬裕・吉田天士・左子芳彦
  • Organizer: 第29回微生物生態学会大会
  • Place of Presentation: 鹿児島大学, 鹿児島県鹿児島市
  • Year and Date: 20131123-25
• [Presentation] 海底コア由来の新規海洋性一酸化炭素資化性好熱菌の分離と性状解析 (2013)
  • Author(s): 米田恭子・吉田天士・安田尚登・今田千秋・左子芳彦
  • Organizer: 平成25年度日本水産学会秋季大会
  • Place of Presentation: 三重大学, 三重県津市
  • Year and Date: 20130919-22
• [Presentation] 一酸化炭素を資化する好熱菌の分離と性状解析 (2013)
  • Author(s): 米田恭子・吉田天士・川市智史・大福高史・北村崇行・井上喬裕・鹿野早苗・高部圭司・安田尚登・今田千秋・左子芳彦
  • Organizer: 微生物科学研究の多様性と新展開シンポジウム
  • Place of Presentation: 京都大学, 京都府京都市
  • Year and Date: 2013-11-08
• [Presentation] Characterization of H_2-producing CO-oxidizing bacterium Carboxydothermus pertinax from an acidic hot spring in Japan (2012)
  • Author(s): Yoneda, Y., Yoshida, T., Kawaichi, S., Daifuku, T., Kitamura, T., Inoue, T., Kano, S., Takabe, K. and Sako, Y
  • Organizer: 14th International Symposium on Microbial Ecology. Microbial Life in Extreme Environments 174A
  • Place of Presentation: Copenhagen, Denmark
  • Year and Date: 20120819-24
• [Presentation] A novel carboxydotrophic thermophilic bacterium isolated from a marine sediment core (2012)
  • Author(s): Yoneda, Y., Yoshida, T., Imada, C., Yasuda, H. and Sako, Y
  • Organizer: The 9th Asia-Pacific Marine Biotechnology Conference
  • Place of Presentation: 高知市文化プラザかるぽーと, 高知県高知市
  • Year and Date: 20120713-16
• [Presentation] CO 資化性好熱菌Carboxydothermus spp. 由来CODH V の性状とその機能 (2011)
  • Author(s): 井上喬裕・吉田天士・和田啓・大福高史・米田恭子・福山恵一・左子芳彦
  • Organizer: 第27回日本微生物生態学会大会
  • Place of Presentation: 京都大学, 京都府京都市
  • Year and Date: 20111008-10
• [Presentation] 熱水環境における一酸化炭素資化性好熱菌の定量的検出 (2011)
  • Author(s): 米田恭子・吉田天士・北村崇行・大福高史・井上喬裕・川市智史・左子芳彦
  • Organizer: 第27回日本微生物生態学会大会
  • Place of Presentation: 京都大学, 京都府京都市
  • Year and Date: 20111008-10
• [Remarks]
  • URL: http://www.microbiology.marine.kais.kyoto-u.ac.jp/