2021
DOI: 10.1128/mbio.00490-21
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Microbial Diversity and Function in Shallow Subsurface Sediment and Oceanic Lithosphere of the Atlantis Massif

Abstract: The subsurface rock beneath the ocean is one of the largest biospheres on Earth, and microorganisms within influence global-scale nutrient cycles. This biosphere is difficult to study, in part due to the low concentrations of microorganisms that inhabit the vast volume of the marine lithosphere.

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Cited by 18 publications
(25 citation statements)
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“…Distinguishing endemic microbial taxa from those introduced from seawater or contamination is a major challenge requiring multiple strategies to overcome (Kallmeyer et al, 2017;Sylvan et al, 2021;Pendleton et al, 2021). Nonetheless, the signatures of endolithic commu- nities have been successfully identified from the subseafloor of the Atlantis Massif during both Expeditions 304 (Mason et al, 2010) and 357 (Motamedi et al, 2020;Goordial et al, 2021;Quéméneur et al, 2019) (Figure F11). Despite the widespread dominance of communities that cycle H 2 and CH 4 in the Lost City hydrothermal chimneys (Schrenk et al, 2004(Schrenk et al, , 2013Brazelton et al, 2006), genes associated with H 2 and CH 4 metabolisms were rare or absent in the Atlantis Massif subseafloor (Goordial et al, 2021).…”
Section: Examining the Thermal Limits Of Life And The Deep Biosphere ...mentioning
confidence: 99%
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“…Distinguishing endemic microbial taxa from those introduced from seawater or contamination is a major challenge requiring multiple strategies to overcome (Kallmeyer et al, 2017;Sylvan et al, 2021;Pendleton et al, 2021). Nonetheless, the signatures of endolithic commu- nities have been successfully identified from the subseafloor of the Atlantis Massif during both Expeditions 304 (Mason et al, 2010) and 357 (Motamedi et al, 2020;Goordial et al, 2021;Quéméneur et al, 2019) (Figure F11). Despite the widespread dominance of communities that cycle H 2 and CH 4 in the Lost City hydrothermal chimneys (Schrenk et al, 2004(Schrenk et al, , 2013Brazelton et al, 2006), genes associated with H 2 and CH 4 metabolisms were rare or absent in the Atlantis Massif subseafloor (Goordial et al, 2021).…”
Section: Examining the Thermal Limits Of Life And The Deep Biosphere ...mentioning
confidence: 99%
“…Nonetheless, the signatures of endolithic commu- nities have been successfully identified from the subseafloor of the Atlantis Massif during both Expeditions 304 (Mason et al, 2010) and 357 (Motamedi et al, 2020;Goordial et al, 2021;Quéméneur et al, 2019) (Figure F11). Despite the widespread dominance of communities that cycle H 2 and CH 4 in the Lost City hydrothermal chimneys (Schrenk et al, 2004(Schrenk et al, , 2013Brazelton et al, 2006), genes associated with H 2 and CH 4 metabolisms were rare or absent in the Atlantis Massif subseafloor (Goordial et al, 2021). In general, the genes necessary for autotrophic carbon fixation pathways were rare, whereas those associated with heterotrophy were regularly identified (Quéméneur et al, 2019;Motamedi et al, 2020;Goordial et al, 2021).…”
Section: Examining the Thermal Limits Of Life And The Deep Biosphere ...mentioning
confidence: 99%
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“…Our current work now investigates whether such cold-active microorganisms may be persisting in such environments cryptically, with metabolic rates too low and metabolism too slow to detect using standard microbiological approaches. To do this, our current work takes advantage of single-cell microbiology flow cytometry sorting techniques that can sequence the genomes of individual cells, even in low-biomass environments ( 18 , 19 ). When combined with fluorescent tagging techniques for active and replicating cells ( 20 ), cell sorting permits analysis of the genomics and activity of cryophilic microbes without requiring a cultivated isolate.…”
Section: Cryophilic Life—slow and Steady?mentioning
confidence: 99%