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A new study found that large brown seaweeds, when under stress, release large quantities of inorganic iodine into the
coastal atmosphere, where it can contribute to cloud formation, thus influencing coastal climate.
The large brown kelps of the genus Laminaria are known as the world's most effective bio-accumulators of iodine, an
important element for thyroid function in humans. The chemical speciation and biological role of iodine in kelp had, however,
remained enigmatic until now.
Küpper FC, Carpenter LJ, McFiggans GB, Palmer CJ, Waite TJ, Boneberg E-M, Woitsch S, Weiller M, Abela R, Grolimund
D, Potin P, Butler A, Luther III GW, Kroneck PMH, Meyer-Klaucke W, Feiters MC (2008) Iodide accumulation provides kelp
with an inorganic antioxidant impacting atmospheric chemistry. Proceedings of the National Academy of Sciences of the
USA 105(19), 6954-8
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