Life Cycle
Dinoflagellates have a haplontic life cycle - with the possible exception of Noctiluca and its relatives . The life-cycle usually involves asexual reproduction by means of binary fission, desmoschisis or eleuteroschisis. More complex life cycles occur, more particularly with parasitic dinofagellates. Sexual reproduction also occurs (e.g. ) and is only known in a small percentage of dinoflagellates . This takes place by fusion of two individuals to form a zygote, which may remain mobile in typical dinoflagellate fashion and is then called a planozygote. This zygote may later form a resting stage or hypnozygote, which are called dinoflagellate cyst or dinocyst. After (or before) germination of the cyst, the hatchling undergoes meiosis to produce new haploid cells.
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