title: Iron and marine nitrogen fixation: progress and future directions.
abstract: A synthesis of the current understanding of potential iron limitation of pelagic nitrogen fixation is given, considering biochemical bases of Fe requirements and empirical observations of growth and Fe quotas of cultures and field populations of Trichodesmium. The potential for iron limitation of heterotrophic diazotrophy in the marine environment is also evaluated.
authors.affiliation: Marine Sciences Research Center, State University of New York at Stony Brook, NY 11794-5000, USA. akustka@yahoo.com
authors.forename: Adam
authors.initials: A
authors.lastname: Kustka
authors.forename: Edward J
authors.initials: EJ
authors.lastname: Carpenter
authors.forename: Sergio A
authors.initials: SA
authors.lastname: Sañudo-Wilhelmy
mesh_terms: D000458:Cyanobacteria / Q000378:metabolism*; D007501:Iron / Q000378:metabolism*; D009586:Nitrogen Fixation; D009792:Oceans and Seas; D012623:Seawater / Q000382:microbiology*
chemical_list: D007501:Iron