Date of Award
Master of Science
The blue-green alga, Microcoleus vaginatus (Gom.) ex Drouet 1968, and a bacterium, Alcaligenes sp., collected from the same habitat, were cultured together and separately in mineral salts media with and without sucrose. Growth of axenic M. vaginatus was stimulated by sucrose. In association with the bacterium in sucrose-containing media algal growth was suppressed, while in inorganic media it was stimulated. Factors involved in this algal-bacterial system probably included competition for the carbon source, changes in pH, and accumulation of cellular waste and lytic products.
Brownell, James Rexford, "Quantitative growth relationships of Microcoleus vaginatus (gom.) ex Drouet and Alcaligenes sp. in a sucrose-salts medium" (1972). Master's Theses. 349.