Abstract
A new species, Chrysosporium speluncarum, obtained from bat guano in caves in the Czech Republic, Slovakia, and Romania, is described, based on phenotype and rDNA sequences. It possesses tuberculate conidia similar to the Histoplasma anamorph of Ajellomyces capsulatus, but it is not dimorphic, does not grow at 37°C, lacks microconidia, and is nonpathogenic and nonkeratinolytic. All studied characteristics suggest a close relationship with Renispora flavissima. The morphologically similar C. chiropterorum, another species known from the bat environment, is a relative of C. lobatum and Polytolypa hystricis, but is distinct from A. capsulatus and C. speluncarum. The affinity for bats and the presence of conidia with prominent tuberculations has originated convergently in several groups of onygenalean fungi. In addition, the occurrence of fungi mimicking A. capsulatus in caves of temperate Europe is reviewed.
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Abbreviations
- SGA:
-
Sabouraud’s glucose agar
- MEA:
-
Malt extract agar
- PYE:
-
Phytone yeast extract agar
- CER:
-
Pablum cereal agar
- DSA:
-
Dextrose salts agar
- CCF:
-
Culture Collection of Fungi, Prague
- CMF:
-
Collection of Microscopic Fungi ISB, České Budějovice
- SK:
-
Slovakia
- CZ:
-
The Czech Republic
- RO:
-
Romania
- PRM:
-
Herbarium Mycologicum Musei Nationalis Prague
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Acknowledgements
This paper is dedicated to Czech mycologist, August J. C. Corda (1809–1894), who described the genus Chrysosporium, on the occasion of the 200th anniversary of his birth. This work was supported by the grant No. AV0Z60660521, MSM 0021620828 and GACR 206/08/P322. We are grateful to the Laboratory of Electron Microscopy of the Institute of Parasitology BC AS CR, v. v. i.) for SEM analysis, to Oleg Ditrich (Institute of Parasitology BC AS CR, v. v. i.) for the pathogenicity assay, to the Cave Administration of the Czech Republic and the Slovak Cave Administration, to Traian Brad (Institute of Speleology E. Racoviţa, Cluj-Napoca) and the management of mentioned caves for allowing entry, to Ľubomír Kováč, Andrej Mock and Peter Ľuptáčik for helping during the collections and to Klára Kochtová for technical assistance.
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Nováková, A., Kolařík, M. Chrysosporium speluncarum, a new species resembling Ajellomyces capsulatus, obtained from bat guano in caves of temperate Europe. Mycol Progress 9, 253–260 (2010). https://doi.org/10.1007/s11557-009-0634-0
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DOI: https://doi.org/10.1007/s11557-009-0634-0