| Organics in chimneys and water samples from deep-sea hydrothermal systems: implications for sub-vent biosphere. | |
| | |
MedLine Citation:
|
PMID: 14676368 Owner: NASA Status: MEDLINE |
Abstract/OtherAbstract:
|
Searching for life in extreme terrestrial environments can be a model of that for extraterrestrial life. Submarine hydrothermal system is one of promising sites for the frontier of life on the earth. Here seawater and vent chimnies were collected from deep-sea hydrothermal vents at Suiyo Seamount, Izu-bonin arc, Pacific Ocean as a part of Archaean Park Project. Pure seawater sample of 300 degrees C (purity>97%) could be collected. Dissolved and total hydrolyzable amino acids were determined by ion-exchange HPLC, and their enantiomeric ratio was measured by reversed-phase HPLC for the first time. Glycine and serine were two most abundant amino acids, followed by other proteinous amino acids such as alanine, glutamic acid and aspartic acid. Non-proteinous amino acids were detected as minor constituents. Most of the amino acids detected were of the L-form. Thus amino acids of abiotic origin were quite minor, and most of the amino acids detected were formed biologically. These results, together with analytical results of the vent chimney samples, suggest that there is active microbial activities near the hydrothermal systems. |
| | |
Authors:
|
Tsukasa Horiuchi; Kensei Kobayashi; Yoshinori Takano; Katsumi Marumo; Miwako Nakashima; Akihiko Yamagishi; Jun-ichiro Ishibashi; Tetsuro Urabe |
Related Documents
:
|
12362078 - Measurement of amino acid levels in the vitreous humor of rats after chronic intraocula... 12842188 - Cassava cyanogens and free amino acids in raw and cooked leaves. 7315418 - Aromatic amino acid incorporation into proteins in rat brain slices: influences of othe... 22992648 - Mesoporous vanadium nitride as a high performance catalyst support for formic acid elec... 2591018 - Influence of creatine, amino acids and water on the formation of the mutagenic heterocy... 2183768 - Newly recognized anticarcinogenic fatty acids. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: Uchū Seibutsu Kagaku Volume: 17 ISSN: 0914-9201 ISO Abbreviation: Biol. Sci. Space Publication Date: 2003 Oct |
Date Detail:
|
Created Date: 2003-12-16 Completed Date: 2008-07-16 Revised Date: 2009-06-04 |
Medline Journal Info:
|
Nlm Unique ID: 100972048 Medline TA: Biol Sci Space Country: Japan |
Other Details:
|
Languages: eng Pagination: 190-1 Citation Subset: S |
Affiliation:
|
Department of Chemistry and Biotechnology, Yokohama National University. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Amino Acids
/
analysis,
chemistry* Hot Temperature* Pacific Ocean Seawater / chemistry*, microbiology Water Microbiology* |
| Chemical | |
Reg. No./Substance:
|
0/Amino Acids |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Formation of organic compounds from simulated Titan atmosphere: perspectives of the Cassini mission.
Next Document: Pyrolysis experiment of simulated exogenous complex organics synthesized from the gas mixtures of CO...