Isotope geochemical study of sea surface temperature reconstruction of archaeal lipids using natural level radiocarbon

• Project/Area Number: 22510020
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Environmental dynamic analysis
• Research Institution: National Institute for Environmental Studies
• Principal Investigator: KONDO Miyuki 独立行政法人国立環境研究所, 環境計測研究センター, 研究員 (30467211)
• Co-Investigator(Kenkyū-buntansha): UCHIDA Masao 独立行政法人国立環境研究所, 環境計測研究センター, 主任研究員 (50344289) ; UTSUMI Motoo 筑波大学, 生命環境科学研究科, 准教授 (60323250)
• Project Period (FY): 2010 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2011: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2010: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
• Keywords: 古細菌 / 北太平洋 / 海洋性古細菌 / 細胞膜脂質 / TEX86 / GDGT / 物質循環 / マリンクレナキオータ / 放射性炭素 / マリンクレンアーキオータ

Research Abstract

To develop paleo-SST proxy by using GDGTs archaea membrane lipids from sediments, we need to know the ecological knowledge of marine archaea in the water column. In this study, we collected filtrated samples from several deoth in Suruga bay to analyze the 14C of GDGTs and DOC, DIC, POC. The Δ14C values of GDGTs from 700 m water dpth was -400‰ and DIC and DOC were 140‰ and -700‰, respectively. The results of GDGTs, DIC and DOC was significantly different from each other, suggesting that various sources and depth distributions of marine archaea was occurred

Research Products

• [Journal Article] Archaeal distribution and abundance in water masses of the Arctic Ocean, Pacific sector (2013)
  • Author(s): Chie Amano-Sato, et al.
  • Journal Title: Aquatic Microbial Ecology Volume: (印刷中)(In press) Issue: 2 Pages: 101-112
  • DOI: 10.3354/ame01624
  • Peer Reviewed
• [Presentation] CO2, CH4 fluxes and bacterial diversities at terrestrial ecosystem along the trans-Alaska pipeline in tundra and boreal forest (2012)
  • Author(s): Amano S. C., Utsumi M., Uchida M., Kondo M., Adachi M., Yamamoto T
  • Organizer: Alaska.AGU fall meeting 2012
  • Place of Presentation: San Francisco, UAS
• [Presentation] Constraining radiocarbon signature of soil organic matter in Alaskan Arctic soil: Implication for importance basis examining the impact of climate warming on CO2 release (2011)
  • Author(s): Kondo M., Uchida M., Kim Y., Utsumi M., Takahashi Y., Adachi M., Shibata Y
  • Organizer: 2011 ARCTIC SCIENCE SUMMIT WEEK
  • Place of Presentation: Seoul, KOREA
  • Year and Date: 2011-03-27
• [Presentation] Vertical profile and components of marine planktonic archaea in the Pacific sector of the Arctic Oceean (2011)
  • Author(s): Akiyama S., Amano S. C., Uchida M., Utsumi M
  • Organizer: AGU Fall Meeting 2011
  • Place of Presentation: San Francisco, UAS
• [Presentation] Distribution and structure of pranktonic Archaea in the Arctic Ocean using 2008 – 2010 R/V Mirai cruise samples (2011)
  • Author(s): Amano S. C., Akiyama S., Uchida M., Utsumi M
  • Organizer: AGU Fall Meeting 2011
  • Place of Presentation: San Francisco, UAS
• [Presentation] Radiocarbon Signature of Soil Organic Carbon in Tundra and Boreal Forests, Northern Alaska (2011)
  • Author(s): Kondo M., Uchida M., Kim Y., Utsumi M., Adachi M., Shibata Y
  • Organizer: The 4th East Asia AMS Symposium
  • Place of Presentation: Tokyo
• [Presentation] Investigation of carbon turnover and CO2 evolution in soil organic carbon from Japanese forest soils: Insight from radiocarbon analysis of soil density fractions and soil respired CO2 (2011)
  • Author(s): Kondo M., Hoshino A., Murayama S., Wagai R., Shibata Y., Uchida M
  • Organizer: AGU Fall Meeting 2011
  • Place of Presentation: San Francisco, UAS
• [Presentation] Isotopic Signatures of Soil Organic Carbon and its Relation to Vegetation in a Successional Glacier Foreland in Ny-Aesund, Svalbard (2011)
  • Author(s): Kondo M., Uchida M., Uchida M., Ohtsuka T., Yoshiake S., Kanda H., Koizumi H., Nakatsubo T., Shibata Y
  • Organizer: The 10th Ny-Alesund Seminar
  • Place of Presentation: Kjeller, Norway
• [Presentation] 北極海海洋炭素循環に関与する海洋古細菌群集の評価 (2011)
  • Author(s): 佐藤千恵, 秋山昇平, 鈴木祐喜, 内田昌男, 内海真生
  • Organizer: Blue earth'11
  • Place of Presentation: 東京