title: Microbial structuring of marine ecosystems.
abstract: Despite the impressive advances that have been made in assessing the diversity of marine microorganisms, the mechanisms that underlie the participation of microorganisms in marine food webs and biogeochemical cycles are poorly understood. Here, we stress the need to examine the biochemical interactions of microorganisms with ocean systems at the nanometre to millimetre scale--a scale that is relevant to microbial activities. The local impact of microorganisms on biogeochemical cycles must then be scaled up to make useful predictions of how marine ecosystems in the whole ocean might respond to global change. This approach to microbial oceanography is not only helpful, but is in fact indispensable.
authors.affiliation: Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093, USA. fazam@ucsd.edu
authors.forename: Farooq
authors.initials: F
authors.lastname: Azam
authors.forename: Francesca
authors.initials: F
authors.lastname: Malfatti
mesh_terms: D000818:Animals; D001419:Bacteria / Q000378:metabolism*; D017753:Ecosystem; D020387:Food Chain; D009792:Oceans and Seas; D012623:Seawater / Q000382:microbiology*; D014871:Water Microbiology