Origins of life and evolution of the biosphere

, Volume 20, Issue 2, pp 99–109

Abiotic synthesis of amino acids and imidazole by proton irradiation of simulated primitive earth atmospheres

Authors

  • Kensei Kobayashi
    • Department of Physical Chemistry, Faculty of EngineeringYokohama National University
  • Masahiko Tsuchiya
    • Department of Physical Chemistry, Faculty of EngineeringYokohama National University
  • Tairo Oshima
    • Department of Life Science, Faculty of ScienceTokyo Institute of Technology
  • Hiroshi Yanagawa
    • Mitsubishi Kasei Institute of Life Sciences
Article

DOI: 10.1007/BF01808270

Cite this article as:
Kobayashi, K., Tsuchiya, M., Oshima, T. et al. Origins Life Evol Biosphere (1990) 20: 99. doi:10.1007/BF01808270

Abstract

Proton irradiation of simulated primitive earth atmosphere was performed, and amino acids and imidazole were analyzed. A mixture of carbon monoxide and nitrogen over water was irradiated by high energy protons (3 MeV, 0.6 µA) generated by a Van de Graaff accelerator for 2–5 h. Various kinds of proteinous and non-proteinous amino acids were detected in the irradiation products. Imidazole present in the irradiation products was also detected by high-performance liquid chromatography and mass spectrometry. The present results suggest that compounds of biological importance such as amino acids could be synthesized from primitive earth atmosphere by radiation of cosmic rays and/or solar flare particles.

Copyright information

© Kluwer Academic Publishers 1990