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@article{1346571, author = {Diakin, Andrei and Paskerova, Gita G. and Simdyanov, Timur G. and Aleoshin, Vladimir V. and Valigurová, Andrea}, article_number = {3}, doi = {http://dx.doi.org/10.1016/j.protis.2016.05.001}, keywords = {Urosporidae; marine eugregarines; ultrastructure; gliding and metaboly; superfolds; 18S rDNA phylogeny.}, language = {eng}, issn = {1434-4610}, journal = {Protist}, title = {Morphology and molecular phylogeny of coelomic gregarines (Apicomplexa) with different types of motility: Urospora ovalis and U. travisiae from the polychaete Travisia forbesii.}, volume = {167}, year = {2016} }
TY - JOUR ID - 1346571 AU - Diakin, Andrei - Paskerova, Gita G. - Simdyanov, Timur G. - Aleoshin, Vladimir V. - Valigurová, Andrea PY - 2016 TI - Morphology and molecular phylogeny of coelomic gregarines (Apicomplexa) with different types of motility: Urospora ovalis and U. travisiae from the polychaete Travisia forbesii. JF - Protist VL - 167 IS - 3 SP - 279-301 EP - 279-301 SN - 14344610 KW - Urosporidae KW - marine eugregarines KW - ultrastructure KW - gliding and metaboly KW - superfolds KW - 18S rDNA phylogeny. N2 - Urosporids (Apicomplexa: Urosporidae) are eugregarines that parasitise marine invertebrates, such as annelids, molluscs, nemerteans and echinoderms, inhabiting their coelom and intestine. Urosporids exhibit considerable morphological plasticity, which correlates with their different modes of motility and variations in structure of their cortical zone, according to the localisation within the host. The gregarines Urospora ovalis and U. travisiae from the marine polychaete Travisia forbesii were investigated with an emphasis on their general morphology and phylogenetic position. Solitary ovoid trophozoites and syzygies of U. ovalis were located free in the host coelom and showed metabolic activity, a non-progressive movement with periodic changes of the cell shape. Solitary trophozoites of U. travisiae, attached to the host tissue or free floating in the coelom, were V-shaped. Detached trophozoites demonstrated gliding motility, a progressive movement without observable cell body changes. In both gregarines, the cortex formed numerous epicytic folds, but superfolds appeared exclusively on the surface of U. ovalis during metabolic activity. SSU rDNA sequences obtained from U. ovalis and U. travisiae revealed that they belong to the Lecudinoidea clade; however, they are not affiliated with other coelomic urosporids (Pterospora spp. and Lithocystis spp.), but surprisingly with intestinal lecudinids (Difficilina spp.) parasitising nemerteans. ER -
DIAKIN, Andrei, Gita G. PASKEROVA, Timur G. SIMDYANOV, Vladimir V. ALEOSHIN a Andrea VALIGUROVÁ. Morphology and molecular phylogeny of coelomic gregarines (Apicomplexa) with different types of motility: Urospora ovalis and U. travisiae from the polychaete Travisia forbesii. \textit{Protist}. 2016, roč.~167, č.~3, s.~279-301. ISSN~1434-4610. Dostupné z: https://dx.doi.org/10.1016/j.protis.2016.05.001.
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