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Statements

Subject Item
n2:RIV%2F60077344%3A_____%2F12%3A00388151%21RIV13-GA0-60077344
rdf:type
skos:Concept n10:Vysledek
rdfs:seeAlso
http://folia.paru.cas.cz/pdf/59/3/179
dcterms:description
Spermiogenesis and ultrastructure of mature spermatozoon of the caryophyllidean cestode Hunterella nodulosa, a parasite of suckers (Catostomidae), have been studied by transmission electron microscopy. This monozoic tapeworm is unique in its mode of attachment and represents the second North American species studied. The process of spermiogenesis of H. nodulosa follows the general pattern already described in other caryophyllideans. The most characteristic feature is the presence of a slight rotation of the flagellar bud, which seems to be a typical character of spermiogenesis in this cestode group. The mature spermatozoon of H. nodulosa is characterized by the presence of one axoneme of 9 + “1 type of the trepaxonematan flatworms surrounded by a semi-arc of cortical microtubules in its anterior extremity, parallel nucleus and cortical microtubules arranged in a parallel pattern, which corresponds to the Type III pattern of cestode spermatozoa according to Levron et al. (2010). Comparison of the present data with those available for other caryophyllideans did not reveal substantial differences, even though they belong to different families, infect different hosts (catostomid, cyprinid and siluriform fishes) and occur in distant zoogeographical regions. This indicates uniformity of the process of sperm formation and spermatozoon ultrastructure in one of the evolutionarily most ancient groups of tapeworms. Spermiogenesis and ultrastructure of mature spermatozoon of the caryophyllidean cestode Hunterella nodulosa, a parasite of suckers (Catostomidae), have been studied by transmission electron microscopy. This monozoic tapeworm is unique in its mode of attachment and represents the second North American species studied. The process of spermiogenesis of H. nodulosa follows the general pattern already described in other caryophyllideans. The most characteristic feature is the presence of a slight rotation of the flagellar bud, which seems to be a typical character of spermiogenesis in this cestode group. The mature spermatozoon of H. nodulosa is characterized by the presence of one axoneme of 9 + “1 type of the trepaxonematan flatworms surrounded by a semi-arc of cortical microtubules in its anterior extremity, parallel nucleus and cortical microtubules arranged in a parallel pattern, which corresponds to the Type III pattern of cestode spermatozoa according to Levron et al. (2010). Comparison of the present data with those available for other caryophyllideans did not reveal substantial differences, even though they belong to different families, infect different hosts (catostomid, cyprinid and siluriform fishes) and occur in distant zoogeographical regions. This indicates uniformity of the process of sperm formation and spermatozoon ultrastructure in one of the evolutionarily most ancient groups of tapeworms.
dcterms:title
Spermiogenesis and spermatozoon ultrastructure of Hunterella nodulosa (Cestoda: Caryophyllidea), a monozoic parasite of suckers (Catostomidae) in North America Spermiogenesis and spermatozoon ultrastructure of Hunterella nodulosa (Cestoda: Caryophyllidea), a monozoic parasite of suckers (Catostomidae) in North America
skos:prefLabel
Spermiogenesis and spermatozoon ultrastructure of Hunterella nodulosa (Cestoda: Caryophyllidea), a monozoic parasite of suckers (Catostomidae) in North America Spermiogenesis and spermatozoon ultrastructure of Hunterella nodulosa (Cestoda: Caryophyllidea), a monozoic parasite of suckers (Catostomidae) in North America
skos:notation
RIV/60077344:_____/12:00388151!RIV13-GA0-60077344
n10:predkladatel
n11:ico%3A60077344
n3:aktivita
n17:P n17:I
n3:aktivity
I, P(GA524/08/0885), P(GBP505/12/G112)
n3:cisloPeriodika
3
n3:dodaniDat
n12:2013
n3:domaciTvurceVysledku
Yoneva, Aneta Levron, Céline n16:7130570
n3:druhVysledku
n18:J
n3:duvernostUdaju
n15:S
n3:entitaPredkladatele
n4:predkladatel
n3:idSjednocenehoVysledku
170418
n3:idVysledku
RIV/60077344:_____/12:00388151
n3:jazykVysledku
n19:eng
n3:klicovaSlova
sperm morphology; Hunterella nodulosa; Caryophyllaeidae; Caryophyllidea; common sucker; North America
n3:klicoveSlovo
n9:Hunterella%20nodulosa n9:sperm%20morphology n9:Caryophyllaeidae n9:Caryophyllidea n9:North%20America n9:common%20sucker
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[D742D91BFEB3]
n3:nazevZdroje
Folia Parasitologica
n3:obor
n7:EA
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
5
n3:projekt
n14:GBP505%2F12%2FG112 n14:GA524%2F08%2F0885
n3:rokUplatneniVysledku
n12:2012
n3:svazekPeriodika
59
n3:tvurceVysledku
Oros, M. Scholz, Tomáš Yoneva, Aneta Orosová, M. Levron, Céline
n3:wos
000310191700005
s:issn
0015-5683
s:numberOfPages
8