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Scientists Uncover That Cellulose-Producing Micro organism Can Survive on Mars

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Probiotic Bacteria

Based on the researchers, bacterial cellulose allows microbial life on Mars.

A workforce of researchers from Göttingen College investigates kombucha cultivation in extraterrestrial environments.

The potential of kombucha cultures surviving beneath Martian-like environments has been studied by a global analysis workforce that features the College of Göttingen. Kombucha, often known as tea fungus or mushroom tea, is a well-liked beverage that’s made by fermenting sugared tea utilizing kombucha cultures, a symbiotic tradition of micro organism and yeast.

Surprisingly, a bacterial species that produces cellulose continued regardless of the simulated Martian ambiance destroying the kombucha cultures’ microbial ecology. The findings had been revealed within the journal Frontiers in Microbiology.

In 2014, with the assistance of the European House Company, the researchers engaged on the “Biology and Mars Experiment” (BIOMEX) project launched kombucha cultures to the International Space Station (ISS).

EXPOSE R2 Platform

Another platform (EXPOSE-R2) outside the International Space Station (ISS) for simulating a Mars-like environment that was used for the experiments. Credit: European Space Agency (ESA)

The objective was to get a better understanding of cellulose’s resilience as a biomarker, kombucha’s genomic structure, and its extraterrestrial survival behavior. The samples were reactivated on Earth and cultured for another two and a half years after one and a half years under simulated Martian conditions outside the ISS.

Working alongside researchers from the University of Minas Gerais in Brazil, Professor Bertram Brenig, director of the University of Göttingen’s Institute of Veterinary Medicine, was in charge of sequencing and bioinformatic analysis of the metagenomes of the reactivated cultures and individual kombucha cultures.

“Based on our metagenomic analysis, we found that the simulated Martian environment drastically disrupted the microbial ecology of kombucha cultures. However, we were surprised to discover that the cellulose-producing bacteria of the genus Komagataeibacter survived.”

EXPOSE R2 Platform Section

Section of the EXPOSE-2 platform outside the International Space Station (ISS) simulating a Mars-like environment that was used for the experiments. Credit: European Space Agency (ESA)

The results suggest that the cellulose produced by the bacteria is probably responsible for their survival in extraterrestrial conditions. This also provides the first evidence that bacterial cellulose could be a biomarker for extraterrestrial life and cellulose-based membranes or films could be a good biomaterial for protecting life and producing consumer goods in extraterrestrial settlements.

Another interesting aspect of these experiments could be the development of novel drug delivery systems, for example, the development of medicine suitable for use in space. Another focus was on investigations into changes in antibiotic resistance: the research team was able to show that the total number of antibiotic and metal resistance genes – meaning that these microorganisms might survive despite antibiotics or metals in the environment – were enriched in the exposed cultures.

“This result shows that the difficulties associated with antibiotic resistance in medicine in space should be given special attention in the future,” the scientists said.

Reference: “The Space-Exposed Kombucha Microbial Community Member Komagataeibacter oboediens Showed Only Minor Changes in Its Genome After Reactivation on Earth” by Daniel Santana de Carvalho, Ana Paula Trovatti Uetanabaro, Rodrigo Bentes Kato, Flávia Figueira Aburjaile, Arun Kumar Jaiswal, Rodrigo Profeta, Rodrigo Dias De Oliveira Carvalho, Sandeep Tiwar, Anne Cybelle Pinto Gomide, Eduardo Almeida Costa, Olga Kukharenko, Iryna Orlovska, Olga Podolich, Oleg Reva, Pablo Ivan P. Ramos, Vasco Ariston De Carvalho Azevedo, Bertram Brenig, Bruno Silva Andrade, Jean-Pierre P. de Vera, Natalia O. Kozyrovska, Debmalya Barh and Aristóteles Góes-Neto, 11 March 2022, Frontiers in Microbiology.
DOI: 10.3389/fmicb.2022.782175



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