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Iron levels unexpectedly limit bacterial growth in the oceans twilight zone
Nature, Published online: 13 November 2024; doi:10.1038/d41586-024-03697-4Microbial growth at depths of 200500 metres has been found to be limited by iron, a key micronutrient. To meet their iron requirement, bacteria inhabiting the twilight zone manufacture siderophores molecules that scavenge trace amounts of iron from seawater.
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