Abstract
The early Earth was characterized by the absence of oxygen in the ocean–atmosphere system, in contrast to the well-oxygenated conditions that prevail today. Atmospheric concentrations first rose to appreciable levels during the Great Oxidation Event, roughly 2.5–2.3 Gyr ago. The evolution of oxygenic photosynthesis is generally accepted to have been the ultimate cause of this rise, but it has proved difficult to constrain the timing of this evolutionary innovation1,2. The oxidation of manganese in the water column requires substantial free oxygen concentrations, and thus any indication that Mn oxides were present in ancient environments would imply that oxygenic photosynthesis was ongoing. Mn oxides are not commonly preserved in ancient rocks, but there is a large fractionation of molybdenum isotopes associated with the sorption of Mo onto the Mn oxides that would be retained. Here we report Mo isotopes from rocks of the Sinqeni Formation, Pongola Supergroup, South Africa. These rocks formed no less than 2.95 Gyr ago3 in a nearshore setting. The Mo isotopic signature is consistent with interaction with Mn oxides. We therefore infer that oxygen produced through oxygenic photosynthesis began to accumulate in shallow marine settings at least half a billion years before the accumulation of significant levels of atmospheric oxygen.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 12 print issues and online access
$259.00 per year
only $21.58 per issue
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Farquhar, J., Zerkle, A. L. & Bekker, A. Geological constraints on the origin of oxygenic photosynthesis. Photosynth. Res. 107, 11–36 (2011).
Holland, H. D. The oxygenation of the atmosphere and oceans. Phil. Trans. R. Soc. B 361, 903–915 (2006).
Mukasa, S. B., Wilson, A. H. & Young, K. R. Geochronological constraints on the magmatic and tectonic development of the Pongola Supergroup (Central Region), South Africa. Precambr. Res. 224, 268–286 (2013).
Rasmussen, B., Fletcher, I. R., Brocks, J. J. & Kilburn, M. R. Reassessing the first appearance of eukaryotes and cyanobacteria. Nature 455, 1101–1103 (2008).
Buick, R. When did oxygenic photosynthesis evolve?. Phil. Trans. R. Soc. B 363, 2731–2743 (2008).
Rosing, M. T. & Frei, R. U-rich Archaean sea-floor sediments from Greenland: Indications of 3,700 Ma oxygenic photosynthesis. Earth Planet. Sci. Lett. 217, 237–244 (2004).
Kirschvink, J. L. & Kopp, R. E. Paleoproterozic icehouses and the evolution of oxygen mediating enzymes: The case for a late origin of photosystem-II . Phil. Trans. R. Soc. B 363, 2755–2765 (2008).
Kopp, R. E., Kirschvink, J. L., Hilburn, I. A. & Nash, C. Z. The paleoproterozoic snowball Earth: A climate disaster triggered by the evolution of oxygenic photosynthesis. Proc. Natl Acad. Sci. USA 102, 11131–11136 (2005).
Rashby, S. E., Sessions, A. L., Summons, R. E. & Newman, D. K. Biosynthesis of 2-methylbacteriohopanepolyols by an anoxygenic phototroph. Proc. Natl Acad. Sci. USA 104, 99–104 (2007).
Diem, D. & Stumm, W. Is dissolved Mn(II) being oxidized by O2 in absence of Mn-bacteria or surface catalysts. Geochim. Cosmochim. Acta 48, 1571–1573 (1984).
Tebo, B. M., Johnson, H. A., McCarthy, J. K. & Templeton, A. S. Geomicrobiology of manganese(II) oxidation. Trends Microbiol. 13, 421–428 (2005).
Hansel, C. M., Zeiner, C. A., Santelli, C. M. & Webb, S. M. Mn(II) oxidation by an ascomycete fungus is linked to superoxide production during asexual reproduction. Proc. Natl Acad. Sci. USA 109, 12621–12625 (2012).
Learman, D., Voelker, B., Vazquez-Rodriguez, A. & Hansel, C. Formation of manganese oxides by bacterially generated superoxide. Nature Geosci. 4, 95–98 (2011).
Clement, B. G., Luther, G. W. & Tebo, B. M. Rapid, oxygen-dependent microbial Mn(II) oxidation kinetics at sub-micromolar oxygen concentrations in the Black Sea suboxic zone. Geochim. Cosmochim. Acta 73, 1878–1889 (2009).
Anbar, A. D. & Holland, H. D. The photochemistry of manganese and the origin of banded iron formations. Geochim. Cosmochim. Acta 56, 2595–2603 (1992).
Barling, J. & Anbar, A. D. Molybdenum isotope fractionation during adsorption by manganese oxides. Earth Planet. Sci. Lett. 217, 315–329 (2004).
Wasylenki, L. E., Rolfe, B. A., Weeks, C. L., Spiro, T. G. & Anbar, A. D. Experimental investigation of the effects of temperature and ionic strength on Mo isotope fractionation during adsorption to manganese oxides. Geochim. Cosmochim. Acta 72, 5997–6005 (2008).
Goldberg, T., Archer, C., Vance, D. & Poulton, S. W. Mo isotope fractionation during adsorption to Fe (oxyhydr)oxides. Geochim. Cosmochim. Acta 73, 6502–6516 (2009).
Sverjensky, D. A. & Lee, N. The great oxidation event and mineral diversification. Elements 6, 31–36 (2010).
Fralick, P., Davis, D. W. & Kissin, S. A. The age of the Gunflint Formation, Ontario, Canada: Single zircon U–Pb age determinations from reworked volcanic ash. Can. J. Earth Sci. 39, 1085–1091 (2002).
Czaja, A. D. et al. Evidence for free oxygen in the Neoarchean ocean based on coupled iron-molybdenum isotope fractionation. Geochim. Cosmochim. Acta 86, 118–137 (2012).
Machado, A. B. On the origin and age of the Steep Rock buckshot, Ontario, Canada. Chem. Geol. 60, 337–349 (1987).
Hammerbeck, E. C. I. The Usushwana Complex in the Southeastern Transvaal with Special References to its Economic Potential Ph.D. thesis, Univ. Pretoria (1977)
Elworthy, T., Eglington, B. M., Armstrong, R. A. & Moyes, A. B. Rb–Sr isotope constraints on the timing of late to post-Archaean tectonometamorphism affecting the southeastern Kaapvaal Craton. J. Afr. Earth Sci. 30, 641–650 (2000).
Horváth, P., Reinhardt, J., Hofmann, A. & Nagy, G. High-grade metamorphism of ironstones in the Mesoarchaean of southwest Swaziland. Mineral. Petrol. (2014)10.1007/s00710-013-0307-1
Beukes, N. J. & Cairncross, B. A Lithostratigraphic–sedimentological reference profile for the Late Archaean Mozaan Group, Pongola Sequence: Application to sequence stratigraphy and correlation with the Witwatersrand Supergroup. S. Afr. J. Geol. 94, 44–69 (1991).
Planavsky, N. et al. Iron isotope composition of some Archean and Proterozoic iron formations. Geochim. Cosmochim. Acta 80, 158–169 (2012).
Johnson, C. M., Beard, B. L., Klein, C., Beukes, N. J. & Roden, E. E. Iron isotopes constrain biologic and abiologic processes in banded iron formation genesis. Geochim. Cosmochim. Acta 72, 151–169 (2008).
Brocks, J. J., Logan, G. A., Buick, R. & Summons, R. E. Archean molecular fossils and the early rise of eukaryotes. Science 285, 1033–1036 (1999).
Johnson, J. et al. Manganese-oxidizing photosynthesis before the rise of cyanobacteria. Proc. Natl Acad. Sci. USA 110, 11238–11243 (2013).
David, L. A. & Alm, E. J. Rapid evolutionary innovation during an Archaean genetic expansion. Nature 469, 93–96 (2011).
Crowe, S. et al. Atmospheric oxygenation three billion years ago. Nature 501, 535–538 (2013).
Acknowledgements
N.J.P. acknowledges financial support from NSF EAR-PF; O.J.R. and D.A. from Europole Mer and ANR-10-LABX-19-01; A.H. and F.O.O. from the NRF of South Africa and Acclaim Exploration; S.V.L. from NSERC-PF and LabexMer-PF; K.O.K. from NSERC; N.J.P., T.W.L., C.T.R. and T.M.J. from NASA Exobiology; and T.W.L. from NSF EAR. C. Delvigne, J. Hancox and N. Hicks provided access to drill core and samples; E. Ponzevera and Y. Germain provided technical assistance.
Author information
Authors and Affiliations
Contributions
N.J.P. wrote the paper with input from all authors. N.J.P., D.A., O.J.R., A.K., S.V.L., F.O.O., E.P., X.W. and C.T.R. generated data. A.H. and N.J.P. provided samples. N.J.P. and C.T.R. designed the study with input from all authors.
Corresponding author
Ethics declarations
Competing interests
The authors declare no competing financial interests.
Supplementary information
Supplementary Information
Supplementary Information (PDF 5151 kb)
Rights and permissions
About this article
Cite this article
Planavsky, N., Asael, D., Hofmann, A. et al. Evidence for oxygenic photosynthesis half a billion years before the Great Oxidation Event. Nature Geosci 7, 283–286 (2014). https://doi.org/10.1038/ngeo2122
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1038/ngeo2122
This article is cited by
-
Excess manganese increases photosynthetic activity via enhanced reducing center and antenna plasticity in Chlorella vulgaris
Scientific Reports (2023)
-
Links between large igneous province volcanism and subducted iron formations
Nature Geoscience (2023)
-
Geodynamic oxidation of Archean terrestrial surfaces
Communications Earth & Environment (2023)
-
Light-independent anaerobic microbial oxidation of manganese driven by an electrosyntrophic coculture
The ISME Journal (2023)
-
Solar energy conversion by photosystem II: principles and structures
Photosynthesis Research (2023)