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  • Title: Control of toxic marine dinoflagellate blooms by serial parasitic killers.
    Author: Chambouvet A, Morin P, Marie D, Guillou L.
    Journal: Science; 2008 Nov 21; 322(5905):1254-7. PubMed ID: 19023082.
    Abstract:
    The marine dinoflagellates commonly responsible for toxic red tides are parasitized by other dinoflagellate species. Using culture-independent environmental ribosomal RNA sequences and fluorescence markers, we identified host-specific infections among several species. Each parasitoid produces 60 to 400 offspring, leading to extraordinarily rapid control of the host's population. During 3 consecutive years of observation in a natural estuary, all dinoflagellates observed were chronically infected, and a given host species was infected by a single genetically distinct parasite year after year. Our observations in natural ecosystems suggest that although bloom-forming dinoflagellates may escape control by grazing organisms, they eventually succumb to parasite attack.
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