Reference health
Timing the evolution of antioxidant enzymes in cyanobacteria
111/111 checkable references clean · checked 2026-07-23
Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a retraction, withdrawal, or removal notice.
5 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.
The 111 checked references that resolve
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The Iron Superoxide Dismutase from the Filamentous Cyanobacterium Nostoc PCC 7120
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Biochemical Characterization of a Membrane-bound Manganese-containing Superoxide Dismutase from the CyanobacteriumAnabaena PCC 7120
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The Paleoproterozoic snowball Earth: A climate disaster triggered by the evolution of oxygenic photosynthesis
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Anoxygenic photosynthesis and the delayed oxygenation of Earth’s atmosphere
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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?
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Evidence for oxygenic photosynthesis half a billion years before the Great Oxidation Event
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The evolution of oxygen-utilizing enzymes suggests early biosphere oxygenation
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A Membrane-Associated Mn-Superoxide Dismutase Protects the Photosynthetic Apparatus and Nitrogenase from Oxidative Damage in the Cyanobacterium Anabaena sp. PCC 7120
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Early emergence of the FtsH proteases involved in photosystem II repair
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Benthic perspective on Earth’s oldest evidence for oxygenic photosynthesis
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Neoarchean (2.7 Ga) lacustrine stromatolite deposits in the Hartbeesfontein Basin, Ventersdorp Supergroup, South Africa: Implications for oxygen oases
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Morphological and habitat evolution in the Cyanobacteria using a compartmentalization approach
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Iron oxides, divalent cations, silica, and the early earth phosphorus crisis
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The bioinorganic chemistry of the ancient ocean: the co-evolution of cyanobacterial metal requirements and biogeochemical cycles at the Archean–Proterozoic boundary?
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Authigenic iron oxide proxies for marine zinc over geological time and implications for eukaryotic metallome evolution
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Oceanic nickel depletion and a methanogen famine before the Great Oxidation Event
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Trace element content of sedimentary pyrite as a new proxy for deep-time ocean–atmosphere evolution
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Cyanobacterial symbionts diverged in the late Cretaceous towards lineage-specific nitrogen fixation factories in single-celled phytoplankton
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Morphological record of oxygenic photosynthesis in conical stromatolites
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The 5 references without a DOI — listed, not checked
no DOI — not checkedWheelis, M. Principles of Modern Microbiology. 140–167 (Jones and Bartlett Publishers, London, 2008).
no DOI — not checkedDiaz, J. M. & Plummer, S. Production of extracellular reactive oxygen species by phytoplankton: past and future directions. J. Plankton Res. 40, 655–666 (2018).
no DOI — not checkedHofman, H. J. Precambrian microflora, belcher islands, canada: significance and systematics. J. Paleontol. 50, 1040–1073 (1976).
no DOI — not checkedZhang, Y. & Golubic, S. Endolithic microfossils (cyanophyta) from early proterozoic stromatolites, Hebei, China. Acta Micropaleontol. Sin. 4, 1–12 (1987).
no DOI — not checkedBekker, A. et al. Dating the rise of atmospheric oxygen. Geochim. Cosmochim. Acta 68, A780–A780 (2004).
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