Accelerated uptake response of the green alga, Chlorella vulgaris, to high levels of phosphorus in Mississippi River water
Science of the Total Environment, The
This paper concerns a study of the effect of phosphorus on the growth of a common green alga, Chlorella vulgaris var. viridis, in both a laboratory culture medium containing phosphorus and samples of Mississippi River water containing added phosphorus of various levels. The extent of algal growth was measured by two methods: (1) by counting the number of algal cells with an improved Neubauer hemacytometer, and (2) by measuring the absorbance of light, at 650 nm by the algal suspension containing chlorophyll in their cells. It was found that the measurements of algal absorbance (cell volume) yielded results closer to the actual algal growth. It was also found that the rate of algal growth was directly proportional to the phosphorus concentration in the river water. Furthermore, analyses of the uptake of phosphorus confirmed that the rate of phosphorus absorption by the algal cells increased rapidly with increasing level of phosphorus added to the river water. © 1980.
Original Publication Date
DOI of published version
Lyon, Howard W. and Woo, Ching S., "Accelerated uptake response of the green alga, Chlorella vulgaris, to high levels of phosphorus in Mississippi River water" (1980). Faculty Publications. 4969.