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Incorporation of isotope from specifically labeled glucose into alginates of Pseudomonas aeruginosa and Azotobacter vinelandii

The incorporation of isotope from [6-14C]glucose into alginate by both Pseudomonas aeruginosa and Azotobacter vinelandii was 10-fold greater than that from either [1-14C]- or [2-14C]glucose, indicating preferential utilization of the bottom half of the glucose molecule for alginate synthesis. These data strongly suggest that the Entner - Doudoroff pathway plays a major role in alginate synthesis in both P. aeruginosa and A. vinelandii.