Unicellular photosynthetic microbes -- phytoplankton -- play a fundamental role in the global carbon cycle and fuel marine food webs. Globally, phytoplankton productivity is regulated by the availability of essential nutrients, such as nitrogen and iron. Researchers have now been able to show that the growth of phytoplankton over large extents of the ocean are not limited by a single nutrient, but by multiple nutrients simultaneously.

1st November 2017 06:16 PM

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