Lipid Biomarkers in Microbialites from a Maar Lake: An Astrobiological Study of Biomarker Preservation under Mars Analog Conditions

-alkanes and fatty acids the best-preserved compounds even at higher radiation doses. While the presence of salts such as chloride and sulfate brines did not modify the preservation of fatty acids and alcohols, the presence of perchlorates alone favored their degradation. Our findings support the idea that remnants of past or present life on Mars may be better preserved in ancient chloride or sulfate saline environments.

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Publication Details

Journal
Astrobiology
Published
2026-04-25
DOI
https://doi.org/10.1177/15311074261443811
Primary Topic
Planetary Science and Exploration
Type
article
Field-Weighted Citation Impact
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article

Lipid Biomarkers in Microbialites from a Maar Lake: An Astrobiological Study of Biomarker Preservation under Mars Analog Conditions

Jyothi Basapathi Raghavendra, Alberto G. Fairén, Daniel Carrizo, Pável U. Martínez-Pabello et al.
Astrobiology
Planetary Science and Exploration
article

Lipid Biomarkers in Microbialites from a Maar Lake: An Astrobiological Study of Biomarker Preservation under Mars Analog Conditions

Jyothi Basapathi Raghavendra, Alberto G. Fairén, Daniel Carrizo, Pável U. Martínez-Pabello, Erik E. Aguilar, Alejandra Izquierdo-León, Javier Martin-Torres, María Colín-García, Laura Sánchez-García, Gimell Benítez-Irigoyen, María-Paz Zorzano
article en

Abstract

-alkanes and fatty acids the best-preserved compounds even at higher radiation doses. While the presence of salts such as chloride and sulfate brines did not modify the preservation of fatty acids and alcohols, the presence of perchlorates alone favored their degradation. Our findings support the idea that remnants of past or present life on Mars may be better preserved in ancient chloride or sulfate saline environments.

Astrobiology
Tokyo Institute of Technology (JP), Cornell University (US), Northumbria University (GB), Instituto Andaluz de Ciencias de la Tierra (ES), Life Science Institute (JP), Secretaría de Ciencia Tecnología e Innovación (MX), Centro de Astrobiología (ES), Universidad Nacional Autónoma de México (MX)
Openalex Percentile: Top 7%
Planetary Science and Exploration
DOISourceOpenAlex
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