J 2015

Cryoconite holes on frozen lakes as source of interesting extremophilic and extremotolerant organisms

SEHNAL, Luděk

Basic information

Original name

Cryoconite holes on frozen lakes as source of interesting extremophilic and extremotolerant organisms

Authors

SEHNAL, Luděk (203 Czech Republic, guarantor, belonging to the institution)

Edition

Czech Polar Reports, 2015, 1805-0697

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

RIV identification code

RIV/00216224:14310/15:00089419

Organization unit

Faculty of Science

DOI

Keywords in English

cryoconite holes - cyanobacteria - extreme environment - diversity - adaptation

Tags

Tags

International impact, Reviewed
Změněno: 17/4/2017 10:46, Ing. Andrea Mikešková

Abstract

V originále

The key thought of this short communication is biodiversity evaluation of the photoautotrophic inhabitants of lake cryoconite holes and point out their potencial as extremotolerant or even extremophilic organisms that deserve attention. Cyanobacterial diversity of these environments was investigated in cryoconites holes of 2 permanently and 1 seasonally ice-covered lakes at James Ross Island. Twelve species from different taxonomic groups, both coccal and filamentous (with and without heterocytes) cyanobacteria, were determined using a light microscope and morphological features of autorophic microorganisms. The results suggested relatively high diversity in such extreme environments and also indicated potential of lake cryoconites to serve as a reservoir of organism that can have special protection properties.