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Kobayashi K, Ise JI, Aoki R, Kinoshita M, Naito K, Udo T, Kunwar B, Takahashi JI, Shibata H, Mita H, Fukuda H, Oguri Y, Kawamura K, Kebukawa Y, Airapetian VS. Formation of Amino Acids and Carboxylic Acids in Weakly Reducing Planetary Atmospheres by Solar Energetic Particles from the Young Sun. Life (Basel) 2023; 13:life13051103. [PMID: 37240748 DOI: 10.3390/life13051103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 05/28/2023] Open
Abstract
Life most likely started during the Hadean Eon; however, the environmental conditions which contributed to the complexity of its chemistry are poorly known. A better understanding of various environmental conditions, including global (heliospheric) and local (atmospheric, surface, and oceanic), along with the internal dynamic conditions of the early Earth, are required to understand the onset of abiogenesis. Herein, we examine the contributions of galactic cosmic rays (GCRs) and solar energetic particles (SEPs) associated with superflares from the young Sun to the formation of amino acids and carboxylic acids in weakly reduced gas mixtures representing the early Earth's atmosphere. We also compare the products with those introduced by lightning events and solar ultraviolet light (UV). In a series of laboratory experiments, we detected and characterized the formation of amino acids and carboxylic acids via proton irradiation of a mixture of carbon dioxide, methane, nitrogen, and water in various mixing ratios. These experiments show the detection of amino acids after acid hydrolysis when 0.5% (v/v) of initial methane was introduced to the gas mixture. In the set of experiments with spark discharges (simulation of lightning flashes) performed for the same gas mixture, we found that at least 15% methane was required to detect the formation of amino acids, and no amino acids were detected in experiments via UV irradiation, even when 50% methane was used. Carboxylic acids were formed in non-reducing gas mixtures (0% methane) by proton irradiation and spark discharges. Hence, we suggest that GCRs and SEP events from the young Sun represent the most effective energy sources for the prebiotic formation of biologically important organic compounds from weakly reducing atmospheres. Since the energy flux of space weather, which generated frequent SEPs from the young Sun in the first 600 million years after the birth of the solar system, was expected to be much greater than that of GCRs, we conclude that SEP-driven energetic protons are the most promising energy sources for the prebiotic production of bioorganic compounds in the atmosphere of the Hadean Earth.
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Affiliation(s)
- Kensei Kobayashi
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Jun-Ichi Ise
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Ryohei Aoki
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Miei Kinoshita
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Koki Naito
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Takumi Udo
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Bhagawati Kunwar
- Chubu Institute of Advanced Studies, Chubu University, 1200 Matsumoto-cho, Kasugai 487-8501, Japan
| | - Jun-Ichi Takahashi
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Hiromi Shibata
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Ibaraki 567-0047, Japan
| | - Hajime Mita
- Department of Life, Environment and Applied Chemistry, Faculty of Engineering, Fukuoka Institute of Technology, Fukuoka 811-0295, Japan
| | - Hitoshi Fukuda
- Open Facility Center, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Yoshiyuki Oguri
- Institute of Innovative Research, Tokyo Institute of Technology, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Kimitaka Kawamura
- Chubu Institute of Advanced Studies, Chubu University, 1200 Matsumoto-cho, Kasugai 487-8501, Japan
| | - Yoko Kebukawa
- Department of Chemistry and Life Science, Graduate School of Engineering Science, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan
| | - Vladimir S Airapetian
- NASA Goddard Space Flight Center/Sellers Exoplanetary Environments Collaboration, Greenbelt, MD 20771, USA
- Department of Physics, American University, Washington, DC 20016, USA
- Graduate School of Advanced Integrated Studies in Human Survivability, Kyoto University, Sakyo-ku, Kyoto 606-8501, Japan
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Kobayashi K, Mita H, Kebukawa Y, Nakagawa K, Kaneko T, Obayashi Y, Sato T, Yokoo T, Minematsu S, Fukuda H, Oguri Y, Yoda I, Yoshida S, Kanda K, Imai E, Yano H, Hashimoto H, Yokobori SI, Yamagishi A. Space Exposure of Amino Acids and Their Precursors during the Tanpopo Mission. ASTROBIOLOGY 2021; 21:1479-1493. [PMID: 34793260 DOI: 10.1089/ast.2021.0027] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Amino acids have been detected in extraterrestrial bodies such as carbonaceous chondrites (CCs), which suggests that extraterrestrial organics could be the source of the first life on Earth, and interplanetary dust particles (IDPs) or micrometeorites (MMs) are promising carriers of extraterrestrial organic carbon. Some amino acids found in CCs are amino acid precursors, but these have not been well characterized. The Tanpopo mission was conducted in Earth orbit from 2015 to 2019, and the stability of glycine (Gly), hydantoin (Hyd), isovaline (Ival), 5-ethyl-5-methylhydantoin (EMHyd), and complex organics formed by proton irradiation from CO, NH3, and H2O (CAW) in space were analyzed by high-performance liquid chromatography and/or gas chromatography/mass spectrometry. The target substances showed a logarithmic decomposition over 1-3 years upon space exposure. Recoveries of Gly and CAW were higher than those of Hyd, Ival, and EMHyd. Ground simulation experiments showed different results: Hyd was more stable than Gly. Solar ultraviolet light was fatal to all organics, and they required protection when carried by IDPs/MMs. Thus, complex amino acid precursors (such as CAW) were possibly more robust than simple precursors during transportation to primitive Earth. The Tanpopo 2 mission is currently being conducted to expose organics to more probable space conditions.
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Affiliation(s)
- Kensei Kobayashi
- Department of Chemistry, Yokohama National University, Hodogaya-ku, Yokohama, Japan
| | - Hajime Mita
- Department of Life, Environment and Applied Chemistry, Faculty of Engineering, Higashi-ku, Fukuoka Institute of Technology, Fukuoka, Japan
| | - Yoko Kebukawa
- Department of Chemistry, Yokohama National University, Hodogaya-ku, Yokohama, Japan
| | - Kazumichi Nakagawa
- The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka, Japan
| | - Takeo Kaneko
- Department of Chemistry, Yokohama National University, Hodogaya-ku, Yokohama, Japan
| | - Yumiko Obayashi
- Department of Chemistry, Yokohama National University, Hodogaya-ku, Yokohama, Japan
| | - Tomohito Sato
- Department of Chemistry, Yokohama National University, Hodogaya-ku, Yokohama, Japan
| | - Takuya Yokoo
- Department of Chemistry, Yokohama National University, Hodogaya-ku, Yokohama, Japan
| | - Saaya Minematsu
- Department of Life, Environment and Applied Chemistry, Faculty of Engineering, Higashi-ku, Fukuoka Institute of Technology, Fukuoka, Japan
| | | | | | - Isao Yoda
- Tokyo Institute of Technology, Meguro-ku, Tokyo, Japan
| | - Satoshi Yoshida
- National Institute for Quantum and Radiological Science and Technology, Inage-ku, Chiba, Japan
| | - Kazuhiro Kanda
- University of Hyogo, Kamigori-cho, Ako-gun, Hyogo, Japan
| | - Eiichi Imai
- Department of Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, Japan
| | - Hajime Yano
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA), Sagamihara, Kanagawa, Japan
| | - Hirofumi Hashimoto
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA), Sagamihara, Kanagawa, Japan
| | - Shin-Ichi Yokobori
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan
| | - Akihiko Yamagishi
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (ISAS/JAXA), Sagamihara, Kanagawa, Japan
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo, Japan
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Takeuchi Y, Furukawa Y, Kobayashi T, Sekine T, Terada N, Kakegawa T. Impact-induced amino acid formation on Hadean Earth and Noachian Mars. Sci Rep 2020; 10:9220. [PMID: 32513990 PMCID: PMC7280214 DOI: 10.1038/s41598-020-66112-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 05/14/2020] [Indexed: 11/28/2022] Open
Abstract
Abiotic synthesis of biomolecules is an essential step for the chemical origin of life. Many attempts have succeeded in synthesizing biomolecules, including amino acids and nucleobases (e.g., via spark discharge, impact shock, and hydrothermal heating), from reduced compounds that may have been limited in their availabilities on Hadean Earth and Noachian Mars. On the other hand, formation of amino-acids and nucleobases from CO2 and N2 (i.e., the most abundant C and N sources on Earth during the Hadean) has been limited via spark discharge. Here, we demonstrate the synthesis of amino acids by laboratory impact-induced reactions among simple inorganic mixtures: Fe, Ni, Mg2SiO4, H2O, CO2, and N2, by coupling the reduction of CO2, N2, and H2O with the oxidation of metallic Fe and Ni. These chemical processes simulated the possible reactions at impacts of Fe-bearing meteorites/asteroids on oceans with a CO2 and N2 atmosphere. The results indicate that hypervelocity impact was a source of amino acids on the Earth during the Hadean and potentially on Mars during the Noachian. Amino acids formed during such events could more readily polymerize in the next step of the chemical evolution, as impact events locally form amino acids at the impact sites.
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Affiliation(s)
- Yuto Takeuchi
- Department of Earth Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Yoshihiro Furukawa
- Department of Earth Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan.
| | - Takamichi Kobayashi
- National Institute for Materials Science, 1-1 Namiki, Tsukuba, 305-0044, Japan
| | - Toshimori Sekine
- Center for High Pressure Science & Technology Advanced Research, 1690 Cailun road, Shanghai, 201203, China
- Graduate School of Engineering, Osaka University, Osaka, Japan, 2-1 Yamada-Oka, Suita, 565-0871, Japan
| | - Naoki Terada
- Department of Geophysics, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
| | - Takeshi Kakegawa
- Department of Earth Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Aoba-ku, Sendai, 980-8578, Japan
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Fox S, Strasdeit H. A possible prebiotic origin on volcanic islands of oligopyrrole-type photopigments and electron transfer cofactors. ASTROBIOLOGY 2013; 13:578-595. [PMID: 23742230 DOI: 10.1089/ast.2012.0934] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Tetrapyrroles are essential to basic biochemical processes such as electron transfer and photosynthesis. However, it is not known whether these evolutionary old molecules have a prebiotic origin. We have serendipitously obtained pyrroles, which are the corresponding monomers, in laboratory experiments that simulated the interaction of amino acid-containing seawater with molten lava. The thermal pyrrole formation from amino acids, which so far has only been reported for special cases, can be explained by the observation that the amino acids become metal bonded, for example in (CaCl2)3(Hala)2·6H2O (Hala=DL-alanine), when the seawater evaporates. At a few hundred degrees Celsius, sea salt crusts also release hydrochloric acid (HCl). On primordial volcanic islands, the volatile pyrroles and HCl must have condensed at cooler locations, for example, in rock pools. There, pyrrole oligomerization may have occurred. To study this possibility, we added formaldehyde and nitrite, two species for which plausible prebiotic sources are known, to 2,4-diethylpyrrole and HCl. We found that even at high dilution conjugated (oxidized) oligomers, including octaethylporphyrin and other cyclic and open-chain tetrapyrroles, were formed. All experiments were conducted under rigorously oxygen-free conditions. Our results suggest that primitive versions of present-day biological cofactors such as chlorophylls, bilins, and heme were spontaneously abiotically synthesized on primordial volcanic islands and thus may have been available to the first protocells.
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Affiliation(s)
- Stefan Fox
- Department of Bioinorganic Chemistry, Institute of Chemistry, University of Hohenheim , Stuttgart, Germany
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Bada JL. New insights into prebiotic chemistry from Stanley Miller's spark discharge experiments. Chem Soc Rev 2013; 42:2186-96. [PMID: 23340907 DOI: 10.1039/c3cs35433d] [Citation(s) in RCA: 114] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1953 was a banner year for biological chemistry: The double helix structure of DNA was published by Watson and Crick, Sanger's group announced the first amino acid sequence of a protein (insulin) and the synthesis of key biomolecules using simulated primordial Earth conditions has demonstrated by Miller. Miller's studies in particular transformed the study of the origin of life into a respectable field of inquiry and established the basis of prebiotic chemistry, a field of research that investigates how the components of life as we know it can be formed in a variety of cosmogeochemical environments. In this review, I cover the continued advances in prebiotic syntheses that Miller's pioneering work has inspired. The main focus is on recent state-of-the-art analyses carried out on archived samples of Miller's original experiments, some of which had never before been analyzed, discovered in his laboratory material just before his death in May 2007. One experiment utilized a reducing gas mixture and an apparatus configuration (referred to here as the "volcanic" apparatus) that could represent a water-rich volcanic eruption accompanied by lightning. Another included H(2)S as a component of the reducing gas mixture. Compared to the limited number of amino acids Miller identified, these new analyses have found that over 40 different amino acids and amines were synthesized, demonstrating the potential robust formation of important biologic compounds under possible cosmogeochemical conditions. These experiments are suggested to simulate long-lived volcanic island arc systems, an environment that could have provided a stable environment for some of the processes thought to be involved in chemical evolution and the origin of life. Some of the alternatives to the Miller-based prebiotic synthesis and the "primordial soup" paradigm are evaluated in the context of their relevance under plausible planetary conditions.
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Affiliation(s)
- Jeffrey L Bada
- Scripps Institution of Oceanography, University of California at San Diego, La Jolla, CA 92093-0212, USA.
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