Asexual phase: trophic forms 
replicate by mitosis 
to 
. Sexual phase: haploid trophic forms conjugate and produce a zygote or sporocyte (early cyst) . The zygote undergoes meiosis and subsequent mitosis to produce eight haploid nuclei (late phase cyst) . Spores exhibit different shapes (such as, spherical and elongated forms). It is postulated that elongation of the spores precedes release from the spore case. It is believed that the release occurs through a rent in the cell wall. After release, the empty spore case usually collapses, but retains some residual cytoplasm 
. A trophic stage, where the organisms probably multiply by binary fission is also recognized to exist. The organism causes disease in immunosuppressed individuals.
replicate by mitosis to . Sexual phase: haploid trophic forms conjugate and produce a zygote or sporocyte (early cyst) . The zygote undergoes meiosis and subsequent mitosis to produce eight haploid nuclei (late phase cyst) . Spores exhibit different shapes (such as, spherical and elongated forms). It is postulated that elongation of the spores precedes release from the spore case. It is believed that the release occurs through a rent in the cell wall. After release, the empty spore case usually collapses, but retains some residual cytoplasm . A trophic stage, where the organisms probably multiply by binary fission is also recognized to exist. The organism causes disease in immunosuppressed individuals.Image & caption found on the following website:
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