J 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.

Basic information

Original name

Imported anthropogenic bacteria may survive the Antarctic winter and introduce new genes into local bacterial communities

Authors

BRAT, Kristián (703 Slovakia, guarantor, belonging to the institution), Ivo SEDLÁČEK (203 Czech Republic, belonging to the institution), Alena SEVCIKOVA (203 Czech Republic), Zdeněk MERTA (203 Czech Republic, belonging to the institution), Kamil LÁSKA (203 Czech Republic, belonging to the institution) and Pavel ŠEVČÍK (203 Czech Republic, belonging to the institution)

Edition

Polish Polar Research, Warsawa, Polish Academy of Sciences, 2016, 0138-0338

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Poland

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 0.636

RIV identification code

RIV/00216224:14110/16:00089572

Organization unit

Faculty of Medicine

UT WoS

000372467800005

Keywords in English

Antarctic; Mendel Station; antropophilic bacteria; biological invasions; spaceflight medicine

Tags

Tags

International impact, Reviewed
Změněno: 13/3/2018 23:37, prof. RNDr. Ivo Sedláček, CSc.

Abstract

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.

Links

LM2010009, research and development project
Name: Projekt CzechPolar - České polární stanice: Stavba a operační náklady
Investor: Ministry of Education, Youth and Sports of the CR