The term polar filament may refer to either of two analogous structures used for host invasion by different groups of parasites: Myxozoa (Metazoa)[1] and Microsporidia (Fungi),[2][3] respectively.
The polar filament is coiled along the inner wall of the polar capsule, and is capable of rapid extrusion, during which it everts "inside-out". When everted, it is sticky, and likely serves to hold the spore onto the intestinal wall of the prospective host, and to help separate the valves of the spore.
The polar filament is important in species classification. In some species of Ceratomyxa, the polar filament forms a straight basal section, which the rest of the filament coils around, while in the genus Sphaeromyxa, the filament is folded in a zig-zag arrangement rather than being coiled.
Referencesedit
^ abAmericus, Benjamin; Lotan, Tamar; Bartholomew, Jerri L.; Atkinson, Stephen D. (2020). "A comparison of the structure and function of nematocysts in free-living and parasitic cnidarians (Myxozoa)". International Journal for Parasitology. 50 (10–11): 763–769. doi:10.1016/j.ijpara.2020.04.012. PMID 32707121.
^Xu, Yanji; Weiss, Louis M. (2005). "The microsporidian polar tube: A highly specialised invasion organelle". International Journal for Parasitology. 35 (9): 941–953. doi:10.1016/j.ijpara.2005.04.003. PMC3109658. PMID 16005007.
^Frixione, Eugenio; Ruiz, Lourdes; Santillán, Moisés; De Vargas, Lourdes V.; Tejero, José M.; Undeen, Albert H. (1992). "Dynamics of polar filament discharge and sporoplasm expulsion by microsporidian spores". Cytoskeleton. 22 (1): 38–50. doi:10.1002/cm.970220105.
This microbiology-related article is a stub. You can help Wikipedia by expanding it.
polar, filament, term, polar, filament, refer, either, analogous, structures, used, host, invasion, different, groups, parasites, myxozoa, metazoa, microsporidia, fungi, respectively, myxozoa, editthe, polar, filament, structure, found, polar, capsule, myxospo. The term polar filament may refer to either of two analogous structures used for host invasion by different groups of parasites Myxozoa Metazoa 1 and Microsporidia Fungi 2 3 respectively In Myxozoa editThe polar filament is a structure found in the polar capsule of myxosporean organisms It is homologous to the penetrant structure found in cnidocytes 1 The polar filament is coiled along the inner wall of the polar capsule and is capable of rapid extrusion during which it everts inside out When everted it is sticky and likely serves to hold the spore onto the intestinal wall of the prospective host and to help separate the valves of the spore The polar filament is important in species classification In some species of Ceratomyxa the polar filament forms a straight basal section which the rest of the filament coils around while in the genus Sphaeromyxa the filament is folded in a zig zag arrangement rather than being coiled References edit a b Americus Benjamin Lotan Tamar Bartholomew Jerri L Atkinson Stephen D 2020 A comparison of the structure and function of nematocysts in free living and parasitic cnidarians Myxozoa International Journal for Parasitology 50 10 11 763 769 doi 10 1016 j ijpara 2020 04 012 PMID 32707121 Xu Yanji Weiss Louis M 2005 The microsporidian polar tube A highly specialised invasion organelle International Journal for Parasitology 35 9 941 953 doi 10 1016 j ijpara 2005 04 003 PMC 3109658 PMID 16005007 Frixione Eugenio Ruiz Lourdes Santillan Moises De Vargas Lourdes V Tejero Jose M Undeen Albert H 1992 Dynamics of polar filament discharge and sporoplasm expulsion by microsporidian spores Cytoskeleton 22 1 38 50 doi 10 1002 cm 970220105 nbsp This microbiology related article is a stub You can help Wikipedia by expanding it vte nbsp This parasitic animal related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Polar filament amp oldid 1207431068, wikipedia, wiki, book, books, library,
