Ultrastructure of the Gaertneriomyces zoospore (Spizellomycetales, Chytridiomycetes)

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Abstract
The zoospore type is described for Gaertneriomyces, a genus in the new order Spizellomycetales, Chytridiomycetes. The nucleus lies in the posterior of the zoospore and it has a basal concavity. The kinetosome and nonfunctional centriole are located just distally to the concavity. Microtubulules radiate in the cytoplasm from a presumed microtubule organizing center consisting of two short, electron-opaque bars attached to the kinetosome. Mitochondria are predominantly in the posterior, and aggregates of lipid globules in the anterior of the zoospore. Microbodies are morphologically associated with the lipid and endoplasmic reticulum. They are also found along the sides of the nucleus and near the mitochondria.