DNA damage protection for enhanced bacterial survival under simulated low earth orbit environmental conditions in Escherichia coli
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- dc.contributor.author Puig, Jaume
- dc.contributor.author Knödlseder, Nastassia
- dc.contributor.author Quera Jordana, Jaume
- dc.contributor.author Algara López, Manuel-Ignacio
- dc.contributor.author Güell Cargol, Marc, 1982-
- dc.date.accessioned 2022-02-15T06:47:12Z
- dc.date.available 2022-02-15T06:47:12Z
- dc.date.issued 2021
- dc.description.abstract Some organisms have shown the ability to naturally survive in extreme environments, even outer space. Some of these have natural mechanisms to resist severe DNA damage from conditions such as ionizing and non-ionizing radiation, extreme temperatures, and low pressures or vacuum. A good example can be found in Deinococcus radiodurans, which was exposed to severe conditions such as those listed in the Exposure Facility of the International Space Station (ISS) for up to three years. Another example are tardigrades (Ramazzottius varieornatus) which are some of the most resilient animals known. In this study, the survival under simulated Low earth Orbit (LEO) environmental conditions was tested in Escherichia coli. The radiation resistance of this bacteria was enhanced using the Dsup gene from R. varieornatus, and two more genes from D. radiodurans involved in DNA damage repair, RecA and uvrD. The enhanced survival to wide ranges of temperatures and low pressures was then tested in the new strains. This research constitutes a first step in the creation of new bacterial strains engineered to survive severe conditions and adapting existing species for their survival in remote environments, including extra-terrestrial habitats. These strains could be key for the development of environments hospitable to life and could be of use for ecological restoration and space exploration. In addition, studying the efficacy and the functioning of the DNA repair mechanisms used in this study could be beneficial for medical and life sciences engineering.
- dc.format.mimetype application/pdf
- dc.identifier.citation Puig J, Knödlseder N, Quera J, Algara M, Güell M. DNA damage protection for enhanced bacterial survival under simulated low earth orbit environmental conditions in Escherichia coli. Front Microbiol. 2021;12:789668. DOI: 10.3389/fmicb.2021.789668
- dc.identifier.doi http://dx.doi.org/10.3389/fmicb.2021.789668
- dc.identifier.issn 1664-302X
- dc.identifier.uri http://hdl.handle.net/10230/52490
- dc.language.iso eng
- dc.publisher Frontiers
- dc.relation.ispartof Front Microbiol. 2021;12:789668
- dc.rights © 2021 Puig, Knödlseder, Quera, Algara and Güell. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
- dc.rights.accessRights info:eu-repo/semantics/openAccess
- dc.rights.uri http://creativecommons.org/licenses/by/4.0/
- dc.subject.keyword DNA repair
- dc.subject.keyword UV survival
- dc.subject.keyword Astrobiology
- dc.subject.keyword Directed molecular evolution
- dc.subject.keyword Low pressure
- dc.subject.keyword Outer space
- dc.subject.keyword Radiation resistance
- dc.title DNA damage protection for enhanced bacterial survival under simulated low earth orbit environmental conditions in Escherichia coli
- dc.type info:eu-repo/semantics/article
- dc.type.version info:eu-repo/semantics/publishedVersion