Search   in
between years and
Mecanismos de control biológico de la proliferación de dinoflagelados marinos: I-factores de crecimiento y mitógenos
V. López-Rodas, S. González-Gil, A. Aguilera and E. Costas

BIOLOGICAL CONTROL MECHANISMS OF MARINE DINOFLAGELLATES PROLIFERATION I-GROWTH FACTORS AND MITOGENES. - The effects of growth factors and mitogenes (fetal bovine serum, platelet derivated growth factor and phorbol 12 monoacetate) on dinoflagellate proliferation were analyzed in axenic clonal cultures of Prorocentrum triestinum and Prorocentrum lima. According with the hypothesis concerning a universal mechanism controlling the cell division cycle in all the eukaryotic cells, apparently dinoflagellates respond to growth factors like mammalian cells do: growth factors significatively increased cell yield and acclimated maximal growth rates of dinoflagellates due to their specific mitogene effect. Apparently under growth factor supplementation dinoflagellate's growth is at a maximal, and their proliferation in culture medium derivated of natural sea water with f/2 nutrients enriched was simmilar to the growth in artificial ASPM f/2 culture medium (where traditionally dinoflagellates are able scarcely to grow). Results suggest that growth factors could play a significant role in the occurrence and proliferation of dinoflagellates blooms.

Keywords: Cell yield, growth rates, growth factors, mitogenes, dinoflagellates.
Contents of this volume Sci. Mar. 56(4) : 293-299 Back PDF
Please, send comments to
ICM (CSIC) - Passeig Marítim de la Barceloneta, 37-49. E-08003 Barcelona (Spain)