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Infections with the ascomycete fungusMetschnikowia typographi sp.nov. in the bark beetlesIps typographus andIps amitinus (Coleoptera, Scolytidae)

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Abstract

The ascomycete fungusMetschnikowia typographi sp.nov. is described. It infects the spruce bark beetlesIps typographus L. andIps amitinus Eichl. Masses of vegetative cells and navicular asci (I. typographus 13–17 × 2 µm;I. amitinus 17–22 × 2 µm) were found in cells of the midgut epithelium and in the body cavity of infected beetles. Each ascus contains two needle-shaped ascospores flattened in the central part, 0.5–1.5 × 0.3 × 13–15 µm and pointed at both ends. The parasitic species ofMetschnikowia, M. bicuspidata, M. artemiae, M. unicuspidata, M. wickerhami andM. typographi are discussed as a special group of the genus characterized by morphological characters.

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Authors and Affiliations

  1. Institute of Entomölogy, Academy of Sciences of the Czech Republic, 370 05, České Budějovice, Czechia

    J. Weiser

  2. Institute of Forest Entomology, Forest Pathology and Forest Protection, BOKU — University of Natural Resources and Applied Life Sciences, 1190, Vienna, Austria

    R. Wegensteiner & U. Händel

  3. Institute of Microbiology, Academy of Sciences of the Czech Republic, 142 20, Prague, Czechia

    Z. Žižka

Authors
  1. J. Weiser
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  2. R. Wegensteiner
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  3. U. Händel
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  4. Z. Žižka
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Additional information

Parts of this research were conducted within the scope of theSpecial Research Program “Forest Ecosystem Restoration” (SFB008); the authors gratefully acknowledge the funding by theAustrian Science Foundation and the Ministry of Agriculture and Forestry.

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Weiser, J., Wegensteiner, R., Händel, U. et al. Infections with the ascomycete fungusMetschnikowia typographi sp.nov. in the bark beetlesIps typographus andIps amitinus (Coleoptera, Scolytidae). Folia Microbiol 48, 611–618 (2003). https://doi.org/10.1007/BF02993467

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  • DOI: https://doi.org/10.1007/BF02993467

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