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Start Over Subject Proteocephalus torulosus

1. Seasonal dynamics of Proteocephalus torulosus (Cestoda: Proteocephalidae) in barbel (Barbus barbus) from the Jihlava River, Czech Republic

Creator:
Scholz, T. and Moravec, F.
Format:
print
Type:
model:internalpart and TEXT
Subject:
Cestoda, Proteocephalus torulosus, barbel, seasonal cycle, Czech Republic, and Sialis lutaria
Language:
English
Description:
The proteocephalid tapeworm Proteocephalus torulosus (Batsch, 1786) exhibited a marked seasonality in its occurrence and maturation in barbel (Barbus harhus L.) from the Jihlava River, South Moravia, Czech Republic. Recruitment took place in winter and early spring, growth and maturation in spring and gravid worms left the fish hosts in May; during summer and autumn, the parasite was almost absent from the fish population. Parasite burden was related to fish size, with larger barbel being more heavily infected than smaller ones.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2. Ultrastructure of the apical glandular region of the scolex of Proteocephalus torulosus (Cestoda: Proteocephalidae)

Creator:
Žďárská, Zdeňka, Scholz, Tomáš, and Nebesářová, Jana
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Cestoda, Proteocephalus torulosus, apical glandular region, and transmission electron microscopy
Language:
English
Description:
In the apical glandular region of the adult Proteocephalus torulosus (Batsch, 1786), two types of eccrine gland cells are present. The first type of unicellular gland produces large electron-dense granules of various sizes. The second type contains small electron-dense granules. Most cells form glands with large granules; glands with small granules are infrequent. The secretion of both types of gland cells is concentrated in the apical parts of the cyton and in the ducts opening to the exterior. On the scolex of P. torulosus, there are regional structural differences of the microthrix border. The apical glandular region bears filamentous microtriches only. On the remaining frontal part, surrounding the glandular region, there are blade-like and filamentous microtriches. The lateral parts of the scolex and suckers bear blade-like microtriches. Possible functions of both types of gland cells and different parts of the scolex microthrix border are discussed. The unique structure of the frontal part of the scolex of P. torulosus and its differences from Proteocephalus macrocephalus, P. longicollis and P. percae correlate well with the putative basal phylogenetic position of P. torulosus among European species of Proteocephalus.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public