First Advisor

John G. Rueter

Date of Publication

1985

Document Type

Thesis

Degree Name

Master of Science (M.S.) in Biology

Department

Biology

Language

English

Subjects

Plants -- Effect of copper on, Plants -- Effect of aluminum on, Copper -- Toxicology, Aluminum -- Toxicology, Algae -- Growth, Scenedesmus quadricauda

DOI

10.15760/etd.5406

Physical Description

1 online resource (102 p.)

Abstract

The effect of variations in aluminum and copper concentrations on the growth rate and enzyme activity of the green alga Scenedesmus quadricauda was investigated. The goal was to determine which chemical species control the biological parameters. The computer program MINEQL (Westal et al 1976) was used to estimate chemical speciation. In the prevalence of both metals, algal growth rate and alkaline phosphatase activity could be correlated to cupric ion activity. The activity of isolated bacterial alkaline phosphatase was found to be a function of both total copper concentration and cupric ion activity. A model was developed to predicted the effects on alkaline phosphatase of perturbation in aquatic chemistry.

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Comments

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Persistent Identifier

http://archives.pdx.edu/ds/psu/19778

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