Abstract
Shewanella colwelliana, a marine bacterium isolated in association with the oyster Crassostrea virginica, produces an abundant exopolysaccharide with potential commercial value as an adhesive under aqueous conditions. Its utilization of glucose was modulated by stoichiometric concentrations of yeast extract. In Brain Heart Infusion medium containing glucose, growth was diauxic with delayed glucose utilization and incorporation into exopolysaccharide. Data from radio-respirometry protocols indicate that glucose is catabolized through a combination of the hexose monophosphate and Entner-Doudoroff pathways. Exopolysaccharide production could be significantly enhanced by adjusting glucose concentrations of the growth medium.
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