Spermatological characters of the pseudophyllidean cestode Bothriocephalus scorpii (Müller, 1776).

作者: Magdaléna Bruňanská , Larisa G. Poddubnaya , Céline Levron

DOI: 10.1016/J.PARINT.2005.11.055

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摘要: Abstract Spermiogenesis of Bothriocephalus scorpii (Cestoda, Pseudophyllidea) includes an orthogonal development two flagella, followed by a flagellar rotation and proximo-distal fusion with the median cytoplasmic process. The occurs at level four attachment zones. presence dense material in apical region differentiation zone early stage spermiogenesis appears to be characteristic feature for Pseudophyllidea. mature spermatozoon possesses axonemes 9+“1” pattern Trepaxonemata, nucleus, cortical microtubules, electron-dense granules crested body. anterior part gamete exhibits centriole surrounded tubular structures arranged as incomplete spiral. When body disappears, are into ring encircling axoneme. their arrangement appear specific clade “Bothriocephalidea”. organization posterior extremity nucleus is described first time

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