Aquatic Sciences Meeting, Albuquerque 2001

SS16 Iron Bioavailability and Limitation to Primary Production (Disciplinary Connections)

Date: Monday, February 12, 2001, Time: 2:45:00 PM

Location: Mesilla

Witter, A, E, Dickinson College, Carlisle, USA, witter@dickinson.edu

Hutchins, D, A, College of Marine Studies, Lewes, USA, dahutch@udel.edu

EFFECT OF FE LIMITATION ON BIOMOLECULE PRODUCTION BY MARINE PHYTOPLANKTON AND CYANOBACTERIA

Marine prokaryotes and eukaryotes express a variety of cell surface biomolecules that may be influenced by factors such as nutrient availability. For instance, cyanobacteria and phytoplankton are known to express iron regulated proteins in response to iron limitation. Less is known about the composition of other biomolecules which may be expressed or repressed in response to iron limitation such as lipopolysaccharides, extracellular polymeric substances, and lipids. In the present study, we report on the effect of Fe limitation on biomolecule production in the marine diatom, Thalassiosira weissflogii, and in the cyanobacterium, Synechococcus sp. PCC 7002.

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Aquatic Sciences Meeting, Albuquerque 2001

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