Biological nitrogen fixation detected under Antarctic sea ice

• Published in: Nature geoscience Vol. 13; no. 11; pp. 729 - 732
• Main Authors: Shiozaki, Takuhei, Fujiwara, Amane, Inomura, Keisuke, Hirose, Yuu, Hashihama, Fuminori, Harada, Naomi
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 01.11.2020; Nature Publishing Group
• Subjects: 704/172; 704/47; 704/47/4112; 704/829; Antarctic sea ice; Candidatus Atelocyanobacterium thalassa; Coastal zone; Cyanobacteria; Earth and Environmental Science; Earth Sciences; Earth System Sciences; Ecological models; Gene expression; Geochemistry; Geology; Geophysics/Geodesy; Ice cover; Keystone species; NifH gene; Nitrogen; Nitrogen fixation; Nitrogenase; Nitrogenation; Ocean models; Oceans; Sea ice; Stations; Tropical climate; Southern Ocean

Nitrogen fixation is the primary source of reactive nitrogen in the ocean. Most ecological models do not predict nitrogen fixation in the Antarctic Ocean because of the low availability of iron and high abundance of nitrogen. Here we extensively examined nitrogen fixation in the Antarctic Ocean, and...