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Portable Analyzer Is Powerful Tool for Detecting Biomarkers of Life on Mars.



NEW ROCHELLE, N.Y. -- The Mars Organic Analyzer (MOA moa (mō`ə) [Maori], common name for an extinct flightless bird of New Zealand related to the kiwi, the emu, the cassowary, and the ostrich. The various species ranged in size from that of a turkey to the 10-ft (3-m) Dinornis giganteus. ), a portable capillary electrophoresis instrument, combined with state-of-the-art fluorescent labeling technology, can detect a much broader spectrum of organic compounds than was previously possible, and these could serve as key biomarkers of extinct or existing life on Mars Scientists have long speculated about the possibility of life on Mars owing to the planet's proximity and similarity to Earth. It remains an open question whether life exists on Mars now, or existed there in the past. , according to a report in the December 2006 issue (Volume 6, Number 6) of Astrobiology astrobiology: see exobiology. , a peer-reviewed journal published by Mary Ann Liebert, Inc. (www.liebertpub.com). The report is available free online at www.liebertpub.com/ast

Recent observations based on the findings of remote sensing devices and robotic probes that have explored the martian surface suggest that liquid water is, or at least was at some time present on Mars. This has revitalized efforts to search for evidence of extinct or existing life forms. Critical to this effort is the availability of highly sensitive instruments capable of detecting very small quantities of the building blocks or degradation products of microbial microbial

pertaining to or emanating from a microbe.


microbial digestion
the breakdown of organic material, especially feedstuffs, by microbial organisms.
 life forms.

Alison Skelley, H. James Cleaves, Christine Jayarajah, Jeffrey Bada, and Richard Mathies, from the University of California, Berkeley The University of California, Berkeley is a public research university located in Berkeley, California, United States. Commonly referred to as UC Berkeley, Berkeley and Cal , and the Scripps Institution of Oceanography Scripps Institution of Oceanography: see California, Univ. of.  at the University of California The University of California has a combined student body of more than 191,000 students, over 1,340,000 living alumni, and a combined systemwide and campus endowment of just over $7.3 billion (8th largest in the United States).  at San Diego, demonstrated that the microchip capillary electrophoresis (CE)-based Mars Organic Analyzer was able to detect and analyze with high sensitivity a greatly expanded range of target analytes, in a paper entitled, "Application of the Mars Organic Analyzer to Nucleobase and Amine amine (əmēn`, ăm`ēn): see under amino group.
amine

Any of a class of nitrogen-containing organic compounds derived, either in principle or in practice, from ammonia (NH3).
 Biomarker Detection."

The authors compared different extraction techniques--including hydrolysis hydrolysis (hīdrŏl`ĭsĭs), chemical reaction of a compound with water, usually resulting in the formation of one or more new compounds.  and sublimation--to isolate analytes from bacteria. They utilized fluorescamine labeling to identify amine-containing biomarker compounds, including amino acids, amino sugars, and nucleobases.

"The group's success in applying the MOA to the analysis of a wider variety of organic biomarker compounds is an important advancement of this component of the Urey Instrument, which is being developed for the ESA 1. (architecture) ESA - Enterprise Systems Architecture.
2. (body) ESA - European Space Agency.
 ExoMars Mission scheduled to launch in 2013," says journal Editor-in-Chief, Sherry L. Cady, Ph.D., Associate Professor in the Department of Geology at Portland State University. To learn more about the groups efforts to find life on Mars, visit their website at http://astrobiology.berkeley.edu.

Astrobiology is the leading peer-reviewed journal in its field. To promote this developing field, the Journal has teamed up with The Astrobiology Web to highlight one outstanding paper per issue of Astrobiology. This paper is available free online at www.liebertpub.com/ast and to visitors of The Astrobiology Web at www.astrobiology.com

Astrobiology is an authoritative peer-reviewed journal published quarterly in print and online. The Journal provides a forum for scientists seeking to advance our understanding of life's origins, evolution, distribution and destiny in the universe. Table of contents and a free sample issue may be viewed online at www.liebertpub.com/ast

Mary Ann Liebert, Inc., is a privately held, fully integrated media company known for establishing authoritative peer-reviewed journals in many promising areas of science and biomedical research. Its biotechnology trade magazine, Genetic Engineering News (GEN), was the first in its field and is today the industry's most widely read publication worldwide. A complete list of the firm's 60 journals, books, and newsmagazines is available at www.liebertpub.com
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Copyright 2006, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Date:Dec 12, 2006
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