Summary
In Spin Filter flasks interacting populations of algae can be grown in such a way that they are kept separate spatially but remain in close contact chemically. The rotating filter unit of the flasks is a solution to the clogging problem. In experiments with this system Chlamydomonas globosa was always inhibited slightly by Chlorococcum ellipsoideum, but Chlorococcum was only inhibited by Chlamydomonas when the latter had an initial advantage.
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Himmelfarb, P., Thayer, P. S., Martin, H. E.: Spin filter culture: the propagation of mammalian cells in suspension. Science 164, 555–557 (1969).
Kroes, H. W.: Growth interactions between Chlamydomonas globosa Snow and Chlorococcum ellipsoideum Deason and Bold under different experimental conditions, with special attention to the role of pH. Limnol. Oceanogr. 16, 869–879 (1971).
Kroes, H. W.: Growth interactions between Chlamydomonas globosa Snow and Chlorococcum ellipsoideum Deason and Bold: the role of extracellular substances. Limnol. Oceanogr. 17, 423–432 (1972).
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Kroes, H.W. A Spin Filter system for the study of algal interactions. Oecologia 11, 93–98 (1973). https://doi.org/10.1007/BF00345126
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DOI: https://doi.org/10.1007/BF00345126