2016
Imported anthropogenic bacteria may survive the Antarctic winter and introduce new genes into local bacterial communities
BRAT, Kristián, Ivo SEDLÁČEK, Alena SEVCIKOVA, Zdeněk MERTA, Kamil LÁSKA et. al.Základní údaje
Originální název
Imported anthropogenic bacteria may survive the Antarctic winter and introduce new genes into local bacterial communities
Autoři
BRAT, Kristián (703 Slovensko, garant, domácí), Ivo SEDLÁČEK (203 Česká republika, domácí), Alena SEVCIKOVA (203 Česká republika), Zdeněk MERTA (203 Česká republika, domácí), Kamil LÁSKA (203 Česká republika, domácí) a Pavel ŠEVČÍK (203 Česká republika, domácí)
Vydání
Polish Polar Research, Warsawa, Polish Academy of Sciences, 2016, 0138-0338
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Polsko
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 0.636
Kód RIV
RIV/00216224:14110/16:00089572
Organizační jednotka
Lékařská fakulta
UT WoS
000372467800005
Klíčová slova anglicky
Antarctic; Mendel Station; antropophilic bacteria; biological invasions; spaceflight medicine
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 13. 3. 2018 23:37, prof. RNDr. Ivo Sedláček, CSc.
Anotace
V originále
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.
Návaznosti
LM2010009, projekt VaV |
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