Prebiotic organic world produced by early Earth environments

2014 Fiscal Year Final Research Report

• Project/Area Number: 24244084
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Petrology/Mineralogy/Science of ore deposit
• Research Institution: Tohoku University
• Principal Investigator: KAKEGAWA Takeshi 東北大学, 理学(系)研究科(研究院), 教授 (60250669)
• Co-Investigator(Kenkyū-buntansha): FURUKAWA Yoshihiro 東北大学, 大学院理学研究科, 助教 (00544107) ; SEKINE Toshimori 広島大学, 大学院理学研究科, 教授 (70343829)
• Project Period (FY): 2012-05-31 – 2015-03-31
• Keywords: 前生物 / 初期地球 / アミノ酸 / 核酸塩基 / リボース

Outline of Final Research Achievements

The purposes of the present study are to perform various experiments for formations of prebiotic organic molecules. We consider that water-rock interaction on the early Earth (including meteorite impact, diagenesis of marine sediments etc.) had played important roles for the prebiotic organic formations. We performed simulating experiments for those water-rock interactions, besides installing state-of-art analytical instruments. We were successful to synthesize various amino acids, nucleic acids, and peptides under high P and T conditions. In addition, selective stabilization of ribose was successful in highly alkaline conditions. Those new data are valuable to promote our knowledge for origin of life.

Free Research Field

地球化学