... with the cytosolic Ca2+changes; there-fore, this ion represents an important factor in altering this structure, but it is not the only cause. The goal of the present minireview is to compile the findings ... though dinoflagellates of the genus Ostreopsis are the most probableorigin of the toxin. Ostreopsis has a wide distribution in tropical and sub-tropical areas, but recently these dinoflagellates ... intraperitoneally [4], Ostreopsis lenticularisproduces the neurotoxic ostreotoxins, Ostreopsismascarenensis produces mascarenotoxins, and recently,Ostreopsis ovata has been identified as the producer ofovatoxin-a...