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A SURVEY OF AUXOTROPHY IN FIVE FRESHWATER DINOFLAGELLATES (PYRRHOPHYTA)1 |
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| Authors: | Jack R. Holt Lois A. Pfiester |
| Abstract: | Peridiniopsis polonicum (Wolosz.) Bourrelly requires vitamin B12, and Peridinium limbatum (Stokes) Lemm. requires thiamin for growth. Unlike marine Peridinium species, Peridinium willei Huit.-Kaas, P. volzii Lemm., and P. inconspicuum Lemm. do not display auxotrophy. Peridinium volzii is strongly inhibited by concentrations of biotin above 1 μg L?1. |
| Keywords: | auxotrophy Peridinium Peridiniopsis freshwater dinoflagellate vitamin B12 biotin thiamin vitamin |