A POLYSACCHARIDE FROM THE BLUE-GREEN ALGA, ANABAENA CYLINDRICA

1954 ◽  
Vol 32 (11) ◽  
pp. 999-1004 ◽  
Author(s):  
C. T. Bishop ◽  
G. A. Adams ◽  
E. O. Hughes
Keyword(s):  
Acid Hydrolysis ◽  
Fresh Water ◽  
Green Alga ◽  
Culture Medium ◽  
Glucuronic Acid ◽  
Molar Ratio ◽  
Blue Green Alga ◽  
Anabaena Cylindrica ◽  
Chemical Homogeneity ◽  
Fresh Water Alga

A complex polysaccharide has been isolated from the fresh-water alga, Anabaena cylindrica, grown in a synthetic culture medium. Prolonged acid hydrolysis yielded glucose, xylose, glucuronic acid, galactose, rhamnose, and arabinose in a molar ratio of 5: 4: 4: 1: 1: 1. Chemical fractionations of the polysaccharide material from solution in cupriethylenediamine, and of its acetate from organic solvents indicated chemical homogeneity.

The initial organic products of fixation of 13N-labeled nitrogen gas by the blue-green alga Anabaena cylindrica

1975 ◽  
Vol 67 (2) ◽  
pp. 501-507 ◽  
Author(s):  
Joseph Thomas ◽  
C. Peter Wolk ◽  
Paul W. Shaffer ◽  
Sam M. Austin ◽  
Aaron Galonsky
Keyword(s):  
Green Alga ◽  
Blue Green Alga ◽  
Anabaena Cylindrica ◽  
Nitrogen Gas ◽  
Organic Products

BIOSYNTHESIS OF EXTRACELLULAR POLYSACCHARIDES BY THE BLUE-GREEN ALGA ANABAENA FLOS-AQUAE

1965 ◽  
Vol 11 (6) ◽  
pp. 877-885 ◽  
Author(s):  
B. G. Moore ◽  
R. G. Tischer
Keyword(s):  
Green Alga ◽  
Water Soluble ◽  
Molar Ratio ◽  
Extracellular Polysaccharides ◽  
Blue Green Alga ◽  
Total Carbohydrate ◽  
Carbon Reduction ◽  
Reduction Cycle ◽  
Phosphorylated Compounds ◽  
Carbon Reduction Cycle

Extracellular polysaccharides were isolated from the blue-green alga Anabaena flos-aquae strain A-37. The polysaccharides are composed of glucuronic acid, glucose, xylose, and ribose in a molar ratio of 1:88:39:3. The extracellular polysaccharides comprise about 40% of the total carbohydrate produced by this alga.Carbon utilization experiments revealed that only D-fructose could be substituted for carbon dioxide as a precursor of polysaccharides and cellular material.The extracellular polysaccharides are derived from water-soluble intracellular polysaccharides of the same composition.Fructose accumulates in stationary phase cells grown in CO2 and the presence of the enzymes fructose diphosphate phosphatase and fructose diphosphate aldolase was demonstrated. Tracer studies showed the presence of phosphorylated compounds common to the photosynthetic carbon reduction cycle and the glycolytic pathway.

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