Fungal community associated with marine macroalgae from Antarctica |
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Authors: | Carolina P Loque Adriana O Medeiros Franciane M Pellizzari Eurico C Oliveira Carlos A Rosa Luiz H Rosa |
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Institution: | 1. Laboratório de Microbiologia, Departamento de Ciências Biológicas, Instituto de Ciências Exatas e Biológicas, Universidade Federal de Ouro Preto, Rua Diogo de Vasconcelos, 122, Ouro Prêto, MG, 35400-000, Brazil 2. Laboratório de Microbiologia Ambiental, Departamento de Botanica, Universidade Federal da Bahia, Salvador, BA, Brazil 3. Laboratório de Ficologia e Qualidade de água do Mar (LAQUAMAR), Universidade Estadual do Paraná, Campus FAFIPAR, Paranaguá, Paraná, Brazil 4. Laboratório de Ficologia, Instituto de Biociências, Universidade de S?o Paulo, S?o Paulo, Brazil 5. Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, C.P. 486, Belo Horizonte, Minas Gerais, Brazil
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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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