Publication details
Unusual ultrastructural characteristics of the yeast Malassezia pachydermatis
| Authors | |
|---|---|
| Year of publication | 2003 |
| Type | Article in Periodical |
| Magazine / Source | Scripta Medica (Brno) |
| MU Faculty or unit | |
| Citation | |
| Web | |
| Field | Other medical specializations |
| Keywords | lipophilic yeast; Malassezia pachydermatis; morphology; transmission electron microscopy; ultrastructure |
| Description | Morphological characteristics of potentially pathogenic yeast Malassezia pachydermatis were studied by transmission electron microscopy (TEM) of ultrathin sections and freeze-fracturing. Cells were small, not exceeding 5.0 mm, with thick cell walls. The broad base for bud emergence was associated with the formation of a characteristic collar. The inner surface of the cell wall showed right-handed spiral ridges. They corresponded to left-handed spiral grooves on the protoplasmic fracture face of plasma membrane directing to the growing pole of daughter cell. In ultrathin sections, these structures appeared as a serrated arrangement of the innermost wall surface and invaginations of the plasma membrane. In the vicinity of a ring-like swelling on the plasma membrane at cytokinesis, there were circumvallate bulgings on mother and daughter cells. The corresponding structures appeared as pits in ultrathin sections. The relation of unusual ultrastructural findings to the cytoskeleton will be studied. |
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