Production of Axenic Gonyaulax Cultures by Treatment with Antibiotics

AUTOR(ES)

Divan, Charles L.

RESUMO

The effects of amphotericin B, chloramphenicol, dihydrostreptomycin sulfate, neomycin sulfate, polymyxin B sulfate, potassium penicillin G, and streptomycin sulfate (used singularly and in various combinations at different concentrations) on the growth and development of four marine dinoflagellates of the genus Gonyaulax and associated bacteria were studied. The combination of amphotericin B, dihydrostreptomycin, neomycin, and penicillin G was highly effective in eliminating bacteria and fungi without reducing dinoflagellate growth and provided a useful method for obtaining axenic cultures of two Gonyaulax species, G. catenella and G. excavata.

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