Origin of the RNA World in Cold Hadean Geothermal Fields Enriched in Zinc and Potassium: Abiogenesis as a Positive Fallout from the Moon-Forming Impact?

Life, Год журнала: 2025, Номер 15(3), С. 399 - 399

Опубликована: Март 4, 2025

The ubiquitous, evolutionarily oldest RNAs and proteins exclusively use rather rare zinc as transition metal cofactor potassium alkali cofactor, which implies their abundance in the habitats of first organisms. Intriguingly, lunar rocks contain a hundred times less ten than Earth’s crust; Moon is also depleted other moderately volatile elements (MVEs). Current theories impact formation attribute this depletion to MVEs still being gaseous state when hot post-impact disk contracted separated from nascent Moon. then fell out onto juvenile protocrust; zinc, most metal, precipitated last, just after potassium. According our calculations, top layer protocrust must have contained up 1019 kg metallic powerful reductant. venting geothermal fluids through MVE-fallout layer, rich radioactive potassium, both capable reducing carbon dioxide dinitrogen, yielded plethora organic molecules released with vapor. In pools vapor condensate, RNA-like may emerged pre-Darwinian selection for low-volatile, associative, mineral-affine, radiation-resistant, nitrogen-rich, polymerizable molecules.

Язык: Английский

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Introduction to the Special Issue on Early Evolution and the Last Common Ancestor

Journal of Molecular Evolution, Год журнала: 2024, Номер unknown

Опубликована: Сен. 20, 2024

Язык: Английский

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The Existence of the Two Domains of Life, Bacteria and Archaea, Would in Itself Imply that Luca and the Ancestors of These Domains Were Progenotes

Опубликована: Янв. 1, 2024

Язык: Английский

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The existence of the two domains of life, Bacteria and Archaea, would in itself imply that LUCA and the ancestors of these domains were progenotes

Biosystems, Год журнала: 2024, Номер unknown, С. 105375 - 105375

Опубликована: Ноя. 1, 2024

Язык: Английский

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