Regulation of the Phytoplankton Heme b Iron Pool During the North Atlantic Spring Bloom

• Published in: Frontiers in Microbiology
• Main Authors: Louropoulou, Evangelia, Gledhill, Martha, Browningi, Thomas J., Desai, Dhwani K., Barraqueta, Jan-lukas Menzel, Tonnard, Manon, Sarthou, Geraldine, Planquette, Helene, Bowie, Andrew R., Schmitz, Ruth A., Laroche, Julie, Achterberg, Eric P.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Frontiers Media Sa 2019
• Subjects: heme b; North Atlantic; phytoplankton; diatoms; iron; limitation; GEOTRACES; GEOVIDE; Irminger Basin; Iceland; Labrador Sea
• Online Access: https://archimer.ifremer.fr/doc/00508/61940/66029.pdf; https://archimer.ifremer.fr/doc/00508/61940/66030.zip; https://doi.org/10.3389/fmicb.2019.01566; https://archimer.ifremer.fr/doc/00508/61940/

Heme b is an iron-containing co-factor in hemoproteins. Heme b concentrations are low (< 1 pmol L-1) in iron limited phytoplankton in cultures and in the field. Here, we determined heme b in marine particulate material (> 0.7 mu m) from the North Atlantic Ocean (GEOVIDE cruise - GEOTRACES sect...