2008n-295 576 algae animal biomineralization cellnuclei cellnucleus cellularsenescence congresses dinoflagellates ecology eukaryota eukaryoticcells evolution foraminifera genetics geographicaldistribution gromiaoviformis gulfof host-parasiteinteractions host-parasiterelationships india indianocean lichens marineinvertebrates mexico microbialmetabolism microbiology morphology mortality myxomycetes parasitology pathogenic physiology protista protozoaninfections qx50b433s1988 qx50r151i1982a reproduction sexualbehavior speciation ultrastructure wc700n279h1986