Abstract
Filamentous fungi and yeasts associated with the marine algae Adenocystis utricularis, Desmarestia anceps, and Palmaria decipiens from Antarctica were studied. A total of 75 fungal isolates, represented by 27 filamentous fungi and 48 yeasts, were isolated from the three algal species and identified by morphological, physiological, and sequence analyses of the internal transcribed spacer region and D1/D2 variable domains of the large-subunit rRNA gene. The filamentous fungi and yeasts obtained were identified as belonging to the genera Geomyces, Antarctomyces, Oidiodendron, Penicillium, Phaeosphaeria, Aureobasidium, Cryptococcus, Leucosporidium, Metschnikowia, and Rhodotorula. The prevalent species were the filamentous fungus Geomyces pannorum and the yeast Metschnikowia australis. Two fungal species isolated in our study, Antarctomyces psychrotrophicus and M. australis, are endemic to Antarctica. This work is the first study of fungi associated with Antarctic marine macroalgae, and contributes to the taxonomy and ecology of the marine fungi living in polar environments. These fungal species may have an important role in the ecosystem and in organic matter recycling.
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Acknowledgments
This study was made possible with financial and logistic support from the Brazilian Antarctic Programme (PROANTAR). It is part of the API activity 403 “MIDIAPI Microbial Diversity of Terrestrial and Maritime ecosystems in Antarctic Peninsula” under the overall coordination of Dr. Vivian H. Pellizari, and contributes to the umbrella IPY activities MERGE (Microbiological and Ecological Responses to Global Environmental Changes in Polar Regions), CAML (Census of Antarctic Marine Life), and SCARMarBIN (SCAR-Marine Biodiversity Information Network). The work was financially supported by the Fundação of Amparo, the Pesquisa of the Minas Gerais (FAPEMIG) and Conselho Nacional of Desenvolvimento Científico and Tecnológico (CNPq). We thank an anonymous reviewer of Polar Biology journal for helpful comments to improve the quality of the manuscript.
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Loque, C.P., Medeiros, A.O., Pellizzari, F.M. et al. Fungal community associated with marine macroalgae from Antarctica. Polar Biol 33, 641–648 (2010). https://doi.org/10.1007/s00300-009-0740-0
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DOI: https://doi.org/10.1007/s00300-009-0740-0