Whole Microorganisms Studied by Pyrolysis-Gas Chromatography-Mass Spectrometry: Significance for Extraterrestrial Life Detection Experiments 1
AUTOR(ES)
Simmonds, Peter G.
RESUMO
Pyrolysis-gas chromatography-mass spectrometric studies of two microorganisms, Micrococcus luteus and Bacillus subtilis var. niger, indicate that the majority of thermal fragments originate from the principal classes of bio-organic matter found in living systems such as protein and carbohydrate. Furthermore, there is a close qualitative similarity between the type of pyrolysis products found in microorganisms and the pyrolysates of other biological materials. Conversely, there is very little correlation between microbial pyrolysates and comparable pyrolysis studies of meteoritic and fossil organic matter. These observations will aid in the interpretation of a soil organic analysis experiment to be performed on the surface of Mars in 1975. The science payload of this landed mission will include a combined pyrolysis-gas chromatography-mass spectrometry instrument as well as several “direct biology experiments” which are designed to search for extraterrestrial life.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=376990Documentos Relacionados
- Measurement of 8-hydroxy-2′-deoxyguanosine in DNA by high-performance liquid chromatography-mass spectrometry: comparison with measurement by gas chromatography-mass spectrometry
- GAS CHROMATOGRAPHY—MASS SPECTROMETRY IN NEUROBIOLOGY
- Differentiation and characterization of Klebsiella pneumoniae strains by pyrolysis-gas-liquid chromatography-mass spectrometry.
- Muramic acid detection in mammalian tissues by gas-liquid chromatography-mass spectrometry.
- Diagnosis of Organic Acidemias by Gas Chromatography-Mass Spectrometry
