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The Geochemical Habitats that Favored the Origin of Thermophilic Lineages by Daniel Colman; Lisa Keller; Eva Andrade Barahona; Emilia Arteaga Pozo; Brian St. Clair; Alysia Cox; Eric Boyd is a Environmental Science article available to read on EtoBox.

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Evidence in the fossil and isotopic records suggests that life inhabited hot springs by ~3.5 Ga. Further, phylogenetic evidence places Bacteria and Archaea from high temperature environments as among the earliest evolving lineages. Moreover, contemporary hot spring communities host an extensive level of biodiversity coinciding with extensive geochemical variation due to spatial and temporal heterogeneity in available oxidants and reductants generated by variable mixing of reduced volcanic and oxidized meteoric fluids. Thus, thermophilic archaeal and bacterial lineages have been co-evolving with their hydrothermal environments since early in the history of life and through dramatic changes in Earth’s geologic history. Yet, little is known of the environmental characteristics that enabled the extensive diversification of microbial life and their metabolic functionalities in these environments. To begin developing a framework to understand the environmental characteristics that enabled expansive microbial taxonomic and functional innovation in thermophilic lineages - coordinated geochemical, metagenomic, and phylogenetic analyses were conducted on 37 high-temperature Yellowstone Natio

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Author

Daniel Colman; Lisa Keller; Eva Andrade Barahona; Emilia Arteaga Pozo; Brian St. Clair; Alysia Cox; Eric Boyd

Publisher

Pensoft Publishers

Published

2023

Field

Environmental Science (Physical Sciences)