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Toxic effects on algal phosphate uptake
Author(s) -
Nyholm Niels
Publication year - 1991
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1002/etc.5620100504
Subject(s) - selenastrum , phosphate , potassium dichromate , potassium phosphate , chlorophyta , phytoplankton , ec50 , growth inhibition , environmental chemistry , algae , potassium , chlorophyceae , phytotoxicity , biology , competition (biology) , toxicity , chemistry , botany , biochemistry , ecology , nutrient , in vitro , inorganic chemistry , chromatography , organic chemistry
The inhibitory effects on growth and phosphate uptake by two toxicants, 3,5‐dichloro‐phenol and potassium dichromate, were studied in batch culture experiments with the freshwater green alga Selenastrum capricornutum . The EC50 figures for inhibition of phosphate uptake were considerably smaller than corresponding figures for growth inhibition, but threshold toxicities did not differ as much. Toxic inhibition of phosphate uptake may potentially influence interspecies competition among phytoplankton.