ArticleOrigins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life2013
Biofilm and planktonic lifestyles differently support the resistance of the desert cyanobacterium Chroococcidiopsis under space and Martian simulations.
Article in Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 13 papers.
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13 citing papers in PubMed, 45 citations in OpenAlex.
- Primary Stress Factors and Adaptive Mechanisms of Microalgae in Space Environments and Their Applications in Space Life Support Systems.Plants (Basel, Switzerland) · 2026Review
- Comparative genomics of space-resilientFEMS microbes · 2026Article
- An astrobiological perspective on microbial biofilms: their importance for habitability and production of detectable and lasting biosignatures.Applied and environmental microbiology · 2025Review
- From Earth to Mars: a perspective on exploiting biomineralization for Martian construction.Frontiers in microbiology · 2025Article
- First characterization of cultivable extremophileFrontiers in microbiology · 2023Article
- Responses of Cyanobacterial Crusts and Microbial Communities to Extreme Environments of the Stratosphere.Microorganisms · 2022Article
- Identification of far-red light acclimation in an endolithicFrontiers in microbiology · 2022Article
- Over-Expression of UV-Damage DNA Repair Genes and Ribonucleic Acid Persistence Contribute to the Resilience of Dried Biofilms of the Desert CyanobacetriumFrontiers in microbiology · 2019Article
- Lack of correlation of desiccation and radiation tolerance in microorganisms from diverse extreme environments tested under anoxic conditions.FEMS microbiology letters · 2018Article
- Avoidance of protein oxidation correlates with the desiccation and radiation resistance of hot and cold desert strains of the cyanobacterium Chroococcidiopsis.Extremophiles : life under extreme conditions · 2017Article
- Preservation of Biomarkers from Cyanobacteria Mixed with Mars-Like Regolith Under Simulated Martian Atmosphere and UV Flux.Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life · 2016Article
- Characterisation of Growth and Ultrastructural Effects of the Xanthoria elegans Photobiont After 1.5 Years of Space Exposure on the International Space Station.Origins of life and evolution of the biosphere : the journal of the International Society for the Study of the Origin of Life · 2016Article
- Fluorescent fingerprints of endolithic phototrophic cyanobacteria living within halite rocks in the Atacama Desert.Applied and environmental microbiology · 2014Article
Corrections and comments
- Erratum issued
Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
When Chroococcidiopsis sp. strain CCMEE 057 from the Sinai Desert and strain CCMEE 029 from the Negev Desert were exposed to space and Martian simulations in the dried status as biofilms or multilayered planktonic samples, the biofilms exhibited an enhanced rate of survival. Compared to strain CCMEE 029, biofilms of strain CCME 057 better tolerated UV polychromatic radiation (5 × 10(5) kJ/m(2) attenuated with a 0.1% neutral density filter) combined with space vacuum or Martian atmosphere of 780 Pa. CCMEE 029, on the other hand, failed to survive UV polychromatic doses higher than 1.5 × 10(3) kJ/m(2). The induced damage to genomic DNA, plasma membranes and photosynthetic apparatus was quantified and visualized by means of PCR-based assays and CLSM imaging. Planktonic samples of both strains accumulated a higher amount of damage than did the biofilms after exposure to each simulation; CLSM imaging showed that photosynthetic pigment bleaching, DNA fragmentation and damaged plasma membranes occurred in the top 3-4 cell layers of both biofilms and of multilayered planktonic samples. Differences in the EPS composition were revealed by molecular probe staining as contributing to the enhanced endurance of biofilms compared to that of planktonic samples. Our results suggest that compared to strain CCMEE 029, biofilms of strain CCMEE 057 might better tolerate 1 year's exposure in space during the next EXPOSE-R2 mission.
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