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@article{1340235,
author = {Brat, Kristián and Sedláček, Ivo and Sevcikova, Alena and Merta, Zdeněk and Láska, Kamil and Ševčík, Pavel},
article_location = {Warsawa},
article_number = {1},
keywords = {Antarctic; Mendel Station; antropophilic bacteria; biological invasions; spaceflight medicine},
language = {eng},
issn = {0138-0338},
journal = {Polish Polar Research},
title = {Imported anthropogenic bacteria may survive the Antarctic winter and introduce new genes into local bacterial communities},
volume = {37},
year = {2016}
}
TY - JOUR
ID - 1340235
AU - Brat, Kristián - Sedláček, Ivo - Sevcikova, Alena - Merta, Zdeněk - Láska, Kamil - Ševčík, Pavel
PY - 2016
TI - Imported anthropogenic bacteria may survive the Antarctic winter and introduce new genes into local bacterial communities
JF - Polish Polar Research
VL - 37
IS - 1
SP - 89-104
EP - 89-104
PB - Polish Academy of Sciences
SN - 01380338
KW - Antarctic
KW - Mendel Station
KW - antropophilic bacteria
KW - biological invasions
KW - spaceflight medicine
N2 - We studied dynamic changes in anthropogenic bacterial communities at a summer-operated Czech research base (the Mendel Research Station) in the Antarctic during 2012 and 2013. We observed an increase in total numbers of detected bacteria between the beginning and the end of each stay in the Antarctic. In the first series of samples, bacteria of Bacillus sp. predominated. Surprisingly, high numbers of Gram-positive cocci and coliforms were found (including opportunistic human pathogens), although the conditions for bacterial life were unfavourable (Antarctic winter). In the second series of samples, coliforms and Gram-positive cocci predominated. Dangerous human pathogens were also detected. Yersinia enterocolitica was identified as serotype O:9. Antibiotic susceptibility testing showed medium-to-high resistance rates to ampicillin, cefalotin, cefuroxime, amoxicillin-clavulanate and gentamicin in Enterobacteriaceae. 16S rRNA sequencing showed high rates of accordance between nucleotide sequences among the tested strains. Three conclusions were drawn: (1) Number of anthropogenic bacteria were able to survive the harsh conditions of the Antarctic winter (inside and outside the polar station). Under certain circumstances (e.g. impaired immunity), the surviving bacteria might pose a health risk to the participants of future expeditions or to other visitors to the base. (2) The bacteria released into the outer environment might have impacts on local ecosystems. (3) New characteristics (e.g. resistance to antibiotics) may be introduced into local bacterial communities.
ER -
BRAT, Kristián, Ivo SEDLÁČEK, Alena SEVCIKOVA, Zdeněk MERTA, Kamil LÁSKA a Pavel ŠEVČÍK. Imported anthropogenic bacteria may survive the Antarctic winter and introduce new genes into local bacterial communities. \textit{Polish Polar Research}. Warsawa: Polish Academy of Sciences, roč.~37, č.~1, s.~89-104. ISSN~0138-0338. 2016.
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