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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Analysis of microbial lipids deposited on Mars Global Simulant (MGS-1) by geomatrix-assisted laser desorption/ionization-mass spectrometry

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Author(s):
dos Santos, Alef [1] ; Rodrigues-Filho, Edson [1] ; Petrucelli Homem, Manoel Gustavo [2]
Total Authors: 3
Affiliation:
[1] Univ Fed Sao Carlos, Dept Quim, Lab Bioquim Micromol Microorganismos LaBioMMi, BR-13565905 Sao Carlos, SP - Brazil
[2] Univ Fed Sao Carlos, Dept Quim, Lab Colisoes Eletron & Foton LCEF, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: International Journal of Astrobiology; v. 20, n. 3, p. 234-240, JUN 2021.
Web of Science Citations: 0
Abstract

Lipids are among the organic substances that can work as biosignatures, indicating life in an environment. We present an experimental investigation concerning analysis of lipids from a microbial source deposited on the Mars Global Simulant (MGS-1) regolith by geomatrix-assisted laser desorption/ionization-mass spectrometry (GALDI-MS). Our results indicate that lipids from intact microbial cells of a black yeast strain can be detected in these mimetic samples of Martian soil. These lipid molecules are predominantly associated with the occurrence of adducts in the GALDI-MS spectra. The results can be helpful in the planning of future planetary missions. (AU)