How did the evolution of oxygenic photosynthesis influence the temporal and spatial development of the microbial iron cycle on ancient Earth?

Schad, Manuel; Konhauser, Kurt O.; Sánchez‐Baracaldo, Patricia; Kappler, Andreas; Bryce, Casey

doi:10.1016/j.freeradbiomed.2019.07.014

Cited by 24 publications

(14 citation statements)

References 200 publications

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“…At the same time, the emergence of oxygenic photosynthesis would have initiated strong competition with anoxygenic photosynthesis for illuminated niche space 49,71 . Based on inference from the physiology of extant anoxygenic phototrophs, which are exceptionally good at growing under low-light conditions, relative to oxygenic phototrophs, anoxygenic phototrophs would have generally outcompeted their oxygenic counterparts as long as electron donor supplies were sufficient 49 .…”

Section: Anoxygenic Photosynthesismentioning

confidence: 99%

Evolution of the structure and impact of Earth’s biosphere

Planavsky

Crowe

Fakhraee

et al. 2021

Nat Rev Earth Environ

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We provide a new perspective on how the structure of Earth's biosphere and its capacity to alter geochemical cycles have changed over its >3.5 billion-year history. We review evidence that oxygenic photosynthesis evolved relatively early in Earth's history, but contend that marine primary productivity was low, surface oxygen was scarce, and marine anoxia was prevalent for the majority of Earth's history. Anoxygenic phototrophs were likely a key part of the marine biosphere in these low-oxygen oceans, and nutrient uptake by these organisms was one factor limiting the extent of marine oxygenic photosynthesis. This marine biosphere-which is fundamentally different from that of today's oceans-likely persisted up until, and potentially even during, the early diversification of eukaryotic algae and animals. We also highlight potential issues with the commonly held idea that early animals and algae fundamentally altered marine nutrient cycling and transformed the marine biological pump. We further argue-in contrast to the standard view-that following the widespread emergence of continental landmasses terrestrial primary productivity was a significant mode of biological carbon fixation, even before the rise of land plants.

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Section: Anoxygenic Photosynthesismentioning

confidence: 99%

Evolution of the structure and impact of Earth’s biosphere

Planavsky

Crowe

Fakhraee

et al. 2021

Nat Rev Earth Environ

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“…The role of photoferrotrophs in the Archean is considered to be significant, as these organisms have been suggested to account for most, if not all, Fe(III) deposited in IFs (Konhauser et al, 2002(Konhauser et al, , 2018Schad et al, 2019). Ferruginous conditions might have been toxic for cyanobacteria in early Precambrian oceans (e.g., Swanner, Mloszewska, et al, 2015), but we cannot completely rule out their presence in surface oxic layers where Fe(II) concentrations might be suppressed.…”

Section: Defining An Oxidative Mechanism From Fe and C Isotopesmentioning

confidence: 89%

Anoxygenic photosynthesis linked to Neoarchean iron formations in Carajás (Brazil)

et al. 2021

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The geological record preserves extensive deposits of iron-rich chemical sediments, referred to as iron formations (IFs). These rocks are characterized by a high content (>15%-20%) of iron-bearing minerals, typically layered or massive, interbedded with silica and/or carbonate-rich layers that were deposited throughout the Precambrian (James, 1983;Klein, 2005). Over the past few decades, studies have employed the chemical and isotopic composition of IFs to constrain past environmental conditions (e.g., Planavsky et al., 2014;Satkoski et al., 2015) and to understand how the microbial iron cycle evolved alongside redox conditions through time (Heard & Dauphas, 2020;

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“…Granted a terrestrial or freshwater origin of cyanobacteria, the sequence of habitats colonized by cyanobacteria is terrestrial and/or freshwater, then marine benthos, and finally marine plankton (Blank & Sánchez-Baracaldo 2010;Blank 2013a;Sánchez-Baracaldo et al 2014;Lyons et al 2014;Sánchez-Baracaldo 2015;Dick et al 2018;Schad et al 2019;Sánchez-Baracaldo et al 2019;Sánchez-Baracaldo & Cardona 2020). In considering whether terrestrial and/or freshwater cyanobacteria could have been responsible for the GOE 2.3-2.4 Ga ago, a necessary preliminary is that terrestrial and/or freshwater cyanobacteria existed prior to the GOE.…”

Section: Could Cyanobacteria On Land And/or In Fresh Water Have Accounted For Organic C Burial and Corresponding O 2 Accumulation During mentioning

confidence: 99%

Gloeobacter and the implications of a freshwater origin of Cyanobacteria

Raven

Sánchez‐Baracaldo

2021

Phycologia

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The earliest branching cyanobacterium, Gloeobacter, exhibits a number of ancestral traits including the lack of thylakoids. It occurs epilithically in microbial mats, both subaerially and submerged in low-salinity habitats. These habitats and the absence of thylakoids are associated with the occurrence of membraneassociated photosynthetic processes in the plasma membrane, possibly limiting the rate of both assembly and reassembly of the oxygen-evolving complex, as well as the photosynthetic rate and in vitro growth rate. These factors interact with the occurrence of Gloeobacter in mats to constrain productivity in nature. Traits found in living Gloeobacter, with the probable time of origin of oxygenic photosynthesis and diversification of cyanobacteria, can be related to the possible role of oxygenic primary productivity and organic carbon burial on land during the early Earth in low-salinity environments around the time of the global oxidation event.

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How did the evolution of oxygenic photosynthesis influence the temporal and spatial development of the microbial iron cycle on ancient Earth?

Cited by 24 publications

References 200 publications

Evolution of the structure and impact of Earth’s biosphere

Evolution of the structure and impact of Earth’s biosphere

Anoxygenic photosynthesis linked to Neoarchean iron formations in Carajás (Brazil)

Gloeobacter and the implications of a freshwater origin of Cyanobacteria

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