TY - JOUR
TI - Ultrastructure and Molecular Phylogeny of Mrazekia macrocyclopis sp. n. (Microsporidia, Mrazekiidae), a Microsporidian Parasite of Macrocyclops albidus (Jur.) (Crustacea, Copepoda)
AU - Issi, Irma V.
AU - Tokarev, Yuri S.
AU - Voronin, Vladimir N.
AU - Seliverstova, Elena V.
AU - Pavlova, Olga A.
AU - Dolgikh, Vyacheslav V.
TI - Ultrastructure and Molecular Phylogeny of Mrazekia macrocyclopis sp. n. (Microsporidia, Mrazekiidae), a Microsporidian Parasite of Macrocyclops albidus (Jur.) (Crustacea, Copepoda)
AB - The ultrastructure and molecular phylogeny of a new microsporidium Mrazekia macrocyclopis sp.n., a parasite of the copepod Macrocyclops albidus (Jur.) in North-West of Russia are described. All stages of its life cycle are diplokaryotic. Fresh spores are rod-shaped and 7.3–10.5 × 1.6–2.3 μm in size. Spore ultrastructure is typical of Mrazekia. The polar tube consists of the anterior clavate manubrium followed by a thin filament arranged in 3.5–4.5 nearly vertical coils. Spores are enclosed in individual sporophorous vesicles. SSU rDNA sequence analysis showed attribution of the new species to a cluster of microsporidia infecting insects (Cystosporogenes, Endoreticulatus), microsrustaceans (Glugoides), vertebrates (Vittaforma) and ciliates (Euplotespora) nested within the clade IV sensu Vossbrinck, Debrunner- Vossbrinck (2005). Mrazekia macrocyclopis is not therefore closely related to Bacillidium vesiculoformis, another microsporidium with rod-shaped spores, and the polyphyletic nature of the family of Mrazekiidae is obvious.
VL - 2010
IS - Volume 49, Issue 1
PY - 2010
SN - 0065-1583
C1 - 1689-0027
SP - 75
EP - 84
UR - https://ejournals.eu/en/journal/acta-protozoologica/article/ultrastructure-and-molecular-phylogeny-of-mrazekia-macrocyclopis-sp-n-microsporidia-mrazekiidae-a-microsporidian-parasite-of-macrocyclops-albidus-jur-crustacea-copepoda
KW - Microsporidia
KW - Mrazekia macrocyclopis sp.n.
KW - Copepoda
KW - Macrocyclopsis albidus
KW - ultrastructure
KW - molecular phylogeny