Polar filament
The term polar filament may refer to either of two analogous structures used for host invasion by different groups of parasites: Myxozoa (Metazoa) and Microsporidia (Fungi), respectively.
The term polar filament may refer to either of two analogous structures used for host invasion by different groups of parasites: Myxozoa (Metazoa) and Microsporidia (Fungi), respectively.