RT Journal Article
T1 Co-expression of environmental extremophilic genes strongly enhances Escherichia coli cross-protection to abiotic stress
A1 Loera, Melany Yalibeth
A1 de Figueras, Carolina González
A1 Sánchez Costa, Mercedes
A1 Martínez Rodríguez, Pablo
A1 Mirete, Salvador
A1 Lamprecht Grandío, María
A1 Díaz Del Toro, Silvia
A1 González Pastor, José Eduardo
A1 Díaz Rullo, Jorge
AB Nature is home to a wide range of species that thrive in extreme conditions. Despite the identification and study of many extremophilic organisms, significant questions remain regarding the limits of life and the potential for enhancing, combining, or transferring extreme characteristics to other organisms. In previous works of our group, several genes retrieved from environmental extremophiles using functional metagenomics were shown to increase the tolerance of the model bacterium Escherichia coli towards different stress conditions. Here, we proposed to evaluate whether the rational combination of those resistance genes isolated from environmental extremophiles and involved in different molecular mechanisms enhanced the cross-protection of E. coli to extreme conditions. Data revealed that the simultaneous introduction in E. coli of environmental extremophilic resistance genes involved in protein degradation, biofilm formation, oxidative stress, and DNA protection resulted in strongly enhanced, non-additive effects, significantly increasing survival rate under perchlorate exposure, UV radiation, and low pH compared to the individual introduction of these genes. Our findings supports that the introduction of multiple resistance genes isolated from environmental extremophiles that belong to diverse biological processes of stress adaptation may be crucial for engineering of multi-resistant species of interest in biomanufacturing and astrobiology.
PB Springer
SN 1431-0651
YR 2025
FD 2025-10
LK https://hdl.handle.net/20.500.14352/129489
UL https://hdl.handle.net/20.500.14352/129489
LA eng
NO Loera, M.Y., de Figueras, C.G., Sánchez-Costa, M. et al. Co-expression of environmental extremophilic genes strongly enhances Escherichia coli cross-protection to abiotic stress. Extremophiles 29, 39 (2025). https://doi.org/10.1007/s00792-025-01404-3
DS Docta Complutense
RD 27 dic 2025