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@ARTICLE{Durn:864360,
author = {Durán, Paola and Barra, Patricio J. and Jorquera, Milko A.
and Viscardi, Sharon and Fernandez, Camila and Paz, Cristian
and Mora, María de la Luz and Bol, Roland},
title = {{O}ccurrence of {S}oil {F}ungi in {A}ntarctic {P}ristine
{E}nvironments},
journal = {Frontiers in Bioengineering and Biotechnology},
volume = {7},
issn = {2296-4185},
address = {Lausanne},
publisher = {Frontiers Media},
reportid = {FZJ-2019-04156},
pages = {28},
year = {2019},
abstract = {The presence of fungi in pristine Antarctic soils is of
particular interest because of the diversity of this
microbial group. However, the extreme conditions that
coexist in Antarctica produce a strong selective pressure
that could lead to the evolution of novel mechanisms for
stress tolerance by indigenous microorganisms. For this
reason, in recent years, research on cold-adapted
microorganisms has increased, driven by their potential
value for applications in biotechnology. Cold-adapted fungi,
in particular, have become important sources for the
discovery of novel bioactive secondary metabolites and
enzymes. In this study, we studied the fungal community
structure of 12 soil samples from Antarctic sites, including
King George Island (including Collins Glacier), Deception
Island and Robert Island. Culturable fungi were isolated and
described according to their morphological and phenotypical
characteristics, and the richness index was compared with
soil chemical properties to describe the fungal community
and associated environmental parameters. We isolated 54
fungal strains belonging to the following 19 genera:
Penicillium, Pseudogymnoascus, Lambertella, Cadophora,
Candida, Mortierella, Oxygenales, Geomyces, Vishniacozyma,
Talaromyces, Rhizopus, Antarctomyces, Cosmospora,
Tetracladium, Leptosphaeria, Lecanicillium, Thelebolus,
Bjerkandera and an uncultured Zygomycete. The isolated fungi
were comprised of $70\%$ Ascomycota, $10\%$ Zygomycota,
$10\%$ Basidiomycota, $5\%$ Deuteromycota and $5\%$
Mucoromycota, highlighting that most strains were associated
with similar genera grown in cold environments. Among the
culturable strains, $55\%$ were psychrotrophic and $45\%$
were psychrophilic, and most were Ascomycetes occurring in
their teleomorph forms. Soils from the Collins Glacier
showed less species richness and greater species dominance
compared with the rest of the sites, whereas samples 4, 7,
and 10 (from Fildes Bay, Coppermine Peninsula and Arctowski
Station, respectively) showed greater species richness and
less species dominance. Species richness was related to the
C/N ratio, whereas species dominance was inversely related
to C and N content. Thus, the structure of the fungal
community was mainly related to soil chemical parameters
more than sample location and altitude.},
cin = {IBG-3},
ddc = {570},
cid = {I:(DE-Juel1)IBG-3-20101118},
pnm = {255 - Terrestrial Systems: From Observation to Prediction
(POF3-255)},
pid = {G:(DE-HGF)POF3-255},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:30899757},
UT = {WOS:000461234900001},
doi = {10.3389/fbioe.2019.00028},
url = {https://juser.fz-juelich.de/record/864360},
}