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Ein neues Sporentierchen, Monocystis n. sp. (Sporozoa, Gregarinida) als Parasit bei den Regenwürmern Lumbricus rubellus (Hoffm.) und Nicodrilus caliginosus (Sav.) (Annelida, Lumbricidae)

Studies on a new sporozoon, Monocystis n. sp. (Sporozoa, Gregarinida) parasitizing in the Earthworms Lumbricus rubellus (Hoffm.) and Nicodrilus caliginosus (Sav.) (Annelida, Lumbricidae)

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Abstract

From soil samples in some mixed coniferous and mixed deciduos forests at two localities,Děčin andČ. Budějovice Czechoslovakia a newMonocystis sp. was found in the Vesiculae seminales of two species of earthworms,Lumbricus rubellus andNicodrilus caliginosus. A life cycle incorporating trophozoits, young (non sporulated) and mature cysts, and spores are described by means of light microscope. Some data on ultrastructure of young spore are also given. The maximal size of the trophozoit was 900–1100×20–50 μm. Nonsporulated cysts were almost oval or long oval in shape, measuring 100–120×60–80 μm. The mature cysts were sherical in shape varying in size from 60 to 170 μm in diameter. Three types of broad navicular shaped spores were recognized: Large spores, measuring 30×12 μm; medium sized ones 20×9; and small spores, measuring 15×6 μm.

Zusammenfassung

Es wird eine aus Bodenproben tschechoslowakischer Mischwälder in den RegenwürmernLumbricus rubellus undNicodrilus caliginosus schmarotzenden neuen Protozoen-Art,Monocystis n. sp. (Sporozoa, Gregarinida) in ihren Entwicklungsstadien beschrieben und abgebildet. Ein Vergleich mit den bisher aus Oligochaeten bekannten Gregarinen wird angestellt.

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Author notes

  1. V. Pižl

    Present address: Institut für Landschaftsökologie, Tschechoslowakische Akademie der Wissenschaften, Č. Budějovice, Tschechoslowakei

Authors and Affiliations

  1. Forstzoologisches Institut, Universität Göttingen, Büsgenweg 3, D-3400, Göttingen-Weende, Bundesrepublik Deutschland

    K. Purrini

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  1. K. Purrini
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  2. V. Pižl
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Purrini, K., Pižl, V. Ein neues Sporentierchen, Monocystis n. sp. (Sporozoa, Gregarinida) als Parasit bei den Regenwürmern Lumbricus rubellus (Hoffm.) und Nicodrilus caliginosus (Sav.) (Annelida, Lumbricidae). Anz. Schadlingskde., Pflanzenschutz, Umweltschutz 55, 131–134 (1982). https://doi.org/10.1007/BF01902702

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  • DOI: https://doi.org/10.1007/BF01902702

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