2001
DOI: 10.1007/s004360100392
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Spermiogenesis in the pseudophyllid cestode Eubothrium crassum (Bloch, 1779)

Abstract: Spermiogenesis of the pseudophyllidean tapeworm Eubothrium crassum has been described by the aid of transmission electron microscopy for the first time. Initially, early spermatids form a distal cytoplasmic protrusion, a differentiation zone containing a small electron-dense, apically oriented region. Out of this region, two centrioles with rootlets develop. The centrioles become orientated in the same plane with the appearance of an intercentriolar body. Now, the long axes of the rootlets are parallel with ea… Show more

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Cited by 42 publications
(3 citation statements)
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“…One of these differences concerns the characteristic accumulations of electron-dense material in the apical area of the zone of differentiation from early stages of spermiogenesis of W. virilis and also observed in K. armeniaca by BruÁanská and Poddubnaya (2006). Similar electron-dense material has also been described in the spathebothriidean Cyathocephalus truncatus by BruÁanská et al (2006) and in four species of the former "pseudophyllideans", Eubothrium crassum by BruÁanská et al (2001), Triaenophorus nodulosus by Levron et al (2005), Bothriocephalus scorpii by Levron et al (2006a) and Diphyllobothrium latum by Levron et al (2006b). Localization of electron-dense material in cestodes is sometimes restricted to the centriolar areas, for example in some cyclophyllideans with the so-called "centriolar adjunct" or centriole associated structures (Bâ et al 1991(Bâ et al , 2000Bâ and Marchand 1994;Miquel et al 2005;Eira et al 2006).…”
Section: Discussionsupporting
confidence: 78%
See 1 more Smart Citation
“…One of these differences concerns the characteristic accumulations of electron-dense material in the apical area of the zone of differentiation from early stages of spermiogenesis of W. virilis and also observed in K. armeniaca by BruÁanská and Poddubnaya (2006). Similar electron-dense material has also been described in the spathebothriidean Cyathocephalus truncatus by BruÁanská et al (2006) and in four species of the former "pseudophyllideans", Eubothrium crassum by BruÁanská et al (2001), Triaenophorus nodulosus by Levron et al (2005), Bothriocephalus scorpii by Levron et al (2006a) and Diphyllobothrium latum by Levron et al (2006b). Localization of electron-dense material in cestodes is sometimes restricted to the centriolar areas, for example in some cyclophyllideans with the so-called "centriolar adjunct" or centriole associated structures (Bâ et al 1991(Bâ et al , 2000Bâ and Marchand 1994;Miquel et al 2005;Eira et al 2006).…”
Section: Discussionsupporting
confidence: 78%
“…A reduction of the intercentriolar body has also been observed in the pseudophyllideans, E. crassum, T. nodulosus, B. scorpii and D. latum (BruÁanská et al 2001;Levron et al 2005Levron et al , 2006a, the tetraphyllideans Acanthobothrium filicolle filicolle and Phyllobothrium lactuca (Mokhtar-Maamouri 1982, SPne et al 1999, the proteocephalideans Nomimoscolex sp., Proteocephalus longicollis, P. torulosus and Corallobothrium solidum (SPne et al 1997;BruÁanská et al 2003BruÁanská et al , 2004BruÁanská et al , 2005, the lecanicephalidean Tetragonocephalum sp. (Justine 2001), and the cyclophyllideans (family Mesocestoididae), Mesocestoides litteratus and M. lineatus (Miquel et al 1999(Miquel et al , 2007.…”
Section: Discussionmentioning
confidence: 87%
“…rossittensis (present study). This character also appears in other cestode groups, e.g., Amphilinidea 26 , Spathebothriidea 27,28 , Diphyllobothriidea 2932 , Bothriocephalidea 3338 , and Proteocephalidea 39 .…”
Section: Discussionmentioning
confidence: 81%