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- W3214064251 abstract "The present study demonstrates biotechnological applications, specifically the maintenance of the lichen Pleurosticta acetabulum to produce large amounts of hydrogen, under extreme conditions such as a) under extreme UVB radiation (1.7mW/cm2 = 1000J/m2.min) over different time periods (4, 20 & 70h) and b) under combined exposure of the lichen to high intensity UVB radiation and extreme low (-196oC) and extreme high temperatures (+70oC). The results highlight that the extremophilic and polyextremophilic behavior of lichens both in dehydrated and in regenerated form, under extreme conditions not necessarily recorded on earth, is compatible with their biotechnological uses. The lichen viability was measured using fluorescence induction techniques (OJIP-test), which record changes in the molecular structure and function of the photosynthetic mechanism, while its ability to produce molecular hydrogen was measured through thermal conductivity gas chromatography (GC-TCD) analysis. Hydrogen is a promising fuel for the future. The exciting result of a lichen micro-ecosystem is its ability to expel its moisture and remain in an inactive state, protecting itself from extreme conditions and maintaining its ability to high yield hydrogen production in a closed system, with the sole addition of water and without the need for additional energy. Our results expand the potential use of lichens for future biotechnological applications in extreme Earth environments, but also in environments on other planets, such as Mars, thus paving the way for astrobiotechnological applications." @default.
- W3214064251 created "2021-11-22" @default.
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- W3214064251 date "2021-12-01" @default.
- W3214064251 modified "2023-10-14" @default.
- W3214064251 title "Biotechnology under extreme conditions: Lichens after extreme UVB radiation and extreme temperatures produce large amounts of hydrogen" @default.
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- W3214064251 doi "https://doi.org/10.1016/j.jbiotec.2021.10.011" @default.
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