Unikaryon polygraphi sp.n. (Protista, Microspora): a new pathogen of the four-eyed spruce bark beetle Polygraphus poligraphus (Col., Scolytidae)

0135871 - ENTU-I 20023090 RIV DE eng J - Článek v odborném periodiku
Weiser, Jaroslav - Händel, U. - Wegensteiner, R. - Žižka, Zdeněk
Unikaryon polygraphi sp.n. (Protista, Microspora): a new pathogen of the four-eyed spruce bark beetle Polygraphus poligraphus (Col., Scolytidae).
Journal of Applied Entomology. Roč. 126, - (2002), s. 148-154. ISSN 0931-2048. E-ISSN 1439-0418
Výzkumný záměr: CEZ:AV0Z5007907
Klíčová slova: Unikaryon polygraphi sp.n.
Kód oboru RIV: EE - Mikrobiologie, virologie
Impakt faktor: 0.388, rok: 2002

The microsporidium Unikaryon polygraphi sp.n., a pathogen of Polygraphus poligraphus in Austria is described based on light microscopic and ultrastructural characteristics. All life stages have isolated nuclei. Sporogony ends with uninucleate single sporoblasts and spores. Mature oval spores measure 2.5-3.0 microm x 1.0-1.5 microm. The larger spores (3 x 1.5microm) belong to the "early spore type" with a polar filament coiled in five turns and the smaller spores (2.5 x 1 microm) with polar filament coiled in 6/7 turns belong to the "environmental spore type". Columnar cells of the midgut, longitudinal and circular muscles and the secretory part of Malpighian tubules of adult beetles are infected. Mature spores are excreted together with the faeces.
Trvalý link: http://hdl.handle.net/11104/0033647