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Cited by 371

The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.

Iodide accumulation provides kelp with an inorganic antioxidant impacting atmospheric chemistry

Open access
Küpper, Frithjof C., Carpenter, Lucy J., McFiggans, Gordon B., Palmer, Carl J., Waite, Tim J., Boneberg, Eva-Maria, Woitsch, Sonja, Weiller, Markus, Abela, Rafael, Grolimund, Daniel, Potin, Philippe, Butler, Alison, Luther, George W., Kroneck, Peter M. H., Meyer-Klaucke, Wolfram, Feiters, Martin C.·2008·Proceedings of the National Academy of Sciences

Abstract

Brown algae of the Laminariales (kelps) are the strongest accumulators of iodine among living organisms. They represent a major pump in the global biogeochemical cycle of iodine and, in particular, the major source of iodocarbons in the coastal atmosphere. Nevertheless, the chemical state and biological significance of accumulated iodine have remained unknown to this date. Using x-ray absorption spectroscopy, we show that the accumulated form is iodide, which readily scavenges a variety of reactive oxygen species (ROS). We propose here that its biological role is that of an inorganic antioxidant, the first to be described in a living system. Upon oxidative stress, iodide is effluxed. On the thallus surface and in the apoplast, iodide detoxifies both aqueous oxidants and ozone, the latter resulting in the release of high levels of molecular iodine and the consequent formation of hygroscopic iodine oxides leading to particles, which are precursors to cloud condensation nuclei. In a complementary set of experiments using a heterologous system, iodide was found to effectively scavenge ROS in human blood cells.

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Metadata

Authors
Küpper, F. C., Carpenter, L. J., McFiggans, G. B., Palmer, C. J., Waite, T. J., Boneberg, E.-M., Woitsch, S., Weiller, M., Abela, R., Grolimund, D., Potin, P., Butler, A., Luther, G. W., Kroneck, P. M. H., Meyer-Klaucke, W., & Feiters, M. C.
Venue
Proceedings of the National Academy of Sciences
Published
2008-05-13
Volume
105
Issue
19
Pages
6954-6958
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2107783446
Cited by
371
References
42
FWCI
37.38
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Iodide accumulation provides kelp with an inorganic antioxidant impacting atmospheric chemistry. https://app.cochat.ai/papers/10.1073/pnas.0709959105
The paper
Küpper, F. C., Carpenter, L. J., McFiggans, G. B., Palmer, C. J., Waite, T. J., Boneberg, E.-M., Woitsch, S., Weiller, M., Abela, R., Grolimund, D., Potin, P., Butler, A., Luther, G. W., Kroneck, P. M. H., Meyer-Klaucke, W., & Feiters, M. C. (2008). Iodide accumulation provides kelp with an inorganic antioxidant impacting atmospheric chemistry. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0709959105

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.