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The ultrastructure ofHaemogregarina sachai (Coccidia; Adeleidea) from the farmed marine flatfishScophthalmus maximus L.

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Summary

The fine structures of different intracellular and extracellular stages ofHaemogregarina sachai pathogenic for the marine flatfishScophthalmus maximus L. under mariculture conditions are described. Merozoites and schizonts from the intraleucocytic schizogony are described in detail and compared with other haemogregarines of poikilothermic animals. In addition a single free sporozoite was found. Intraerythrocytic stages showed such a poor structural differentiation that no detailed description was possible.

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Abbreviations

C :

Conoid

DRH :

Ductules of the rhoptries

GO :

Golgi apparatus

IM :

Inner membrane of the pellicle

ME :

Merozoite

MI :

Mitochondrion

MN :

Micronemes

MP :

Micropore

MT :

Microtubules

N :

Nucleus

NM :

Nuclear membrane

NP :

Nuclear pore

NU :

Nucleolus

OM :

Outer membrane of the pellicle

P :

Polar ring

PNS :

Perinuclear space

PV :

Parasitophorous vacuole

RB :

Refractile body

RH :

Rhoptries

RER :

Rough endoplasmic reticulum

RI :

Ribosomes

SCH :

Schizont

SP :

Sporozoite

V :

Vacuole

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Author notes

  1. P. Kirmse

    Present address: Institute for Parasitology and Tropical Vet. Medicine, Königsweg 65, D-1000, Berlin 37

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  1. Unit of Aquatic Pathobiology, Department of Biology, University of Stirling, FK9 4LA, Stirling, Scotland

    P. Kirmse

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Kirmse, P. The ultrastructure ofHaemogregarina sachai (Coccidia; Adeleidea) from the farmed marine flatfishScophthalmus maximus L.. Z. Parasitenkd. 58, 201–210 (1979). https://doi.org/10.1007/BF00933928

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  • DOI: https://doi.org/10.1007/BF00933928

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