Larssoniella duplicati n.sp. (Microsporidia, Unikaryonidae), a newly described pathogen infecting the double-spined spruce bark beetle, Ips duplicatus (Coleoptera, Scolytidae) in the Czech Republic

0099600 - BC 2008 RIV DE eng J - Článek v odborném periodiku
Weiser, Jaroslav - Holuša, J. - Žižka, Zdeněk
Larssoniella duplicati n.sp. (Microsporidia, Unikaryonidae), a newly described pathogen infecting the double-spined spruce bark beetle, Ips duplicatus (Coleoptera, Scolytidae) in the Czech Republic.
[Larssoniella duplicati n.sp. (Microsporidia, Unikaryonidae), nově popsaný patogen infikující lýkožrouta severského, Ips duplicatus (Coleoptera, Scolytidae) v České republice.]
Journal of Pest Science. Roč. 79, č. 3 (2006), s. 127-135. ISSN 1612-4758. E-ISSN 1612-4766
Výzkumný záměr: CEZ:AV0Z50070508; CEZ:AV0Z50200510
Klíčová slova: Microsporidia * Larssoniella duplicati * Ips duplicatus
Kód oboru RIV: EE - Mikrobiologie, virologie
Impakt faktor: 0.438, rok: 2006

Larssoniella duplicati n.sp. infects the midgut muscularis, the Malpighian tubules, and the ovaries of adult Ips duplicatus (Sahlb.) in the Czech Republic. The microsporidian attacks up to 50% of the population. Oval spores of two sizes, 3-3.5x1.5-2 and 2-2.5x1.5 mu m have the polar filament coiled in 6/7 coils, representing primary and environmental spores, respectively. In early sporogony the young spores produce long electron dense threads and tubules of secretions, which remain fixed around the spore and avoid their free release during dissection of infected hosts. The microsporidian was not found in associated bark beetles such as Ips typographus (L.), or I. amitinus (Eichh.) and others.

Mikrosporidie Larssoniella duplicati napadá až 50% populace lýkožrouta severského. Infikuje trávíví soustavu, svalstvo, Malpighické trubice a ovaria. Popsány jsou dva typy spór. U dalších druhů lýkožroutů nebyla tato mikrosporidie zjištěna.
Trvalý link: http://hdl.handle.net/11104/0158162