Abstract
During investigations of mycobiota in the coastal Arctic polythermal glaciers, different species of the ubiquitous genus Penicillium were isolated from the extreme subglacial environment. A group of Penicillium strains was obtained that did not belong to any known Penicillium species. This species was isolated in high numbers from the Kongsvegen subglacial ice and was not detected in the surrounding environment. A detailed analysis of secondary metabolite profiles, physiological and morphological characteristics, and partial β-tubulin gene sequences showed that the proposed new species Penicillium svalbardense is closely related but not identical to Penicillium piscarium and Penicillium simplicissimum. It differs in the production of secondary metabolites and in the morphological features of conidia and penicilli, and it is therefore described as a new species.
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Abbreviations
- CFU:
-
colony forming units
- DIC:
-
differential interference contrast
- HPLC:
-
high-performance liquid chromatography
- PCR:
-
polymerase chain reaction
- ITS:
-
internal transcribed spacer
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Acknowledgements
We thank Polona Zalar for the illustration of the P. svalbardense micromorphological features and Dr. Walter Gams for the latin diagnosis.
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Sonjak, S., Uršič, V., Frisvad, J.C. et al. Penicillium svalbardense, a new species from Arctic glacial ice. Antonie van Leeuwenhoek 92, 43–51 (2007). https://doi.org/10.1007/s10482-006-9133-3
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DOI: https://doi.org/10.1007/s10482-006-9133-3