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Partitioning of Bacterial Communities between Seawater and Healthy, Black Band Diseased, and Dead Coral Surfaces
ABSTRACT Distinct partitioning has been observed in the composition and diversity of bacterial communities inhabiting the surface and overlying seawater of three coral species infected with blackExpand
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Geological constraints on the origin of oxygenic photosynthesis
This article examines the geological evidence for the rise of atmospheric oxygen and the origin of oxygenic photosynthesis. The evidence for the rise of atmospheric oxygen places a minimum timeExpand
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A bistable organic-rich atmosphere on the Neoarchaean Earth
Before the rise of oxygen, the atmosphere of the early Earth may have consisted of an organic haze. Geochemical data and modelling suggest that from 2.65 to 2.5 Gyr ago, several transitions betweenExpand
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Sulfate was a trace constituent of Archean seawater
Dissecting ancient microbial sulfur cycling Before the rise of oxygen, life on Earth depended on the marine sulfur cycle. The fractionation of different sulfur isotopes provides clues to whichExpand
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High isotope fractionations during sulfate reduction in a low-sulfate euxinic ocean analog
A detailed record of the early-Earth sulfur (S) cycle is chronicled by the S isotope values of sulfide and sulfate preserved in the rock record. Interpretation of this record rests on ourExpand
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Pathways for Neoarchean pyrite formation constrained by mass-independent sulfur isotopes
It is generally thought that the sulfate reduction metabolism is ancient and would have been established well before the Neoarchean. It is puzzling, therefore, that the sulfur isotope record of theExpand
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Biogeochemical signatures through time as inferred from whole microbial genomes
Throughout geologic time, a strong feedback has existed between the geosphere and the biosphere; therefore biological evolution and innovation can be linked to the evolution of ancient environmentsExpand
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Multiple oscillations in Neoarchaean atmospheric chemistry
Abstract The Great Oxidation Event (GOE) represents a crucial juncture in Earth history, signifying the rise in atmospheric oxygen from parts per million to percent levels at ∼2.45–2.32Expand
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Onset of the aerobic nitrogen cycle during the Great Oxidation Event
The rise of oxygen on the early Earth (about 2.4 billion years ago) caused a reorganization of marine nutrient cycles, including that of nitrogen, which is important for controlling global primaryExpand
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Stable sulfur isotopes in the water column of the Cariaco Basin
Previous geochemical and microbiological studies in the Cariaco Basin indicate intense elemental cycling and a dynamic microbial loop near the oxic–anoxic interface. We obtained detailedExpand
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