Browsing by Author "Radek R."

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    First record, occurrence and distribution of entomopathogens in populations of the European cockchafer, Melolontha melolontha (Coleoptera: Scarabaeidae) in Turkey
    (2016-01-01) Yaman M.; Algi G.; Güner B.; Ertürk Ö.; Ünal S.; Radek R.
    In the present study, the first record, occurrence and distribution of three different pathogens: two protistan pathogens; a coccidian and a neogregarine, and an entomopoxvirus from the European cockchafer, Melolontha melolontha L. (Coleoptera: Scarabaeidae) are given. A neogregarine pathogen was recorded for the first time from M. melolontha populations. A coccidian pathogen, Adelina melolonthae was recorded for the first time for Turkey. An entomopoxvirus was recorded from a new locality, Kocaeli in Turkey, The infections caused by pathogens were observed in the haemolymph and fat body of the adults and larvae. The occurrence and distribution of these pathogens in the M. melolontha populations are also presented.
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    Nosema raphidiae sp.n. (Microsporida, Nosematidae): A microsporidian pathogen of the predatory snake-fly Raphidia ophiopsis (Raphidioptera: Raphidiidae)
    (2009-12-01) Yaman M.; Radek R.; Tosun O.; Ünal S.
    The microsporidium Nosema raphidiae sp.n., a new pathogen of the predatory snake-fly Raphidia ophiopsis is described based on light microscopic and ultrastructural characteristics. It infects the gut of R. ophiopsis. All development stages are in direct contact with the host cell cytoplasm. Meronts with one diplokaryon are spherical or ovoid and are 3.8 to 6.2 μm. Sporonts are spherical to elongate and measure 4.2 to 6.2 μm. Diplokaryotic sporonts divide once to produce two sporoblasts which mature into spores. Sporoblasts are elongated and measure 3.2 to 5.2 μm in length. Fresh spores with nuclei arranged in a diplokaryon are oval and measure 4.13 ± 0.25 μm in length and 2.26 ± 0.19 μm in width. Spores stained with Giemsa's stain measure 3.80 ± 0.25 μm in length and 2.18 ± 0.17 μm in width. Spores have an isofilar polar filament with six or seven coils. All morphological and ultrastructural features indicate that the described microsporidium belongs to the genus Nosema. This species has been named Nosema raphidiae sp. n. after its host's genus.