Iron, Phytoplankton Growth, and the Carbon Cycle

Iron is an essential nutrient supporting the growth and metabolism of marine organisms. Iron-bearing molecules are involved in photosynthetic and respiratory electron transport, nitrate and nitrite reduction, N₂ fixation, sulfate reduction, and, as enzyme components, in the detoxification of reactive oxygen species such as O 2 − https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780429164644/2de4ce19-7524-45f4-901a-b25d9142f529/content/eq147.tif"/> and H₂O₂ [1].