Isolation and description of a globally distributed cryosphere cyanobacterium from Antarctica

A previously uncultured cyanobacterium, strain KNUA009, was axenically isolated from a meltwater stream on Barton Peninsula, King George Island, South Shetland Islands, Antarctica. Molecular evidences showed that the isolate belongs to groups of globally distributed cryosphere cyanobacterial clones...

Full description

Bibliographic Details
Published in:Polar Research
Main Authors: Ji Won Hong, Sung Hong Kim, Han-Gu Choi, Sung-Ho Kang, Ho-Sung Yoon
Format: Article in Journal/Newspaper
Language:English
Published: Norwegian Polar Institute 2013
Subjects:
Barton Peninsular
cryosphere cyanobacteria
King George Island
uncultured Oscillatoria species
Environmental sciences
GE1-350
Oceanography
GC1-1581
Barton
Barton Peninsula
South Shetland Islands
Antarc*
Antarctica
Polar Research
Online Access:https://doi.org/10.3402/polar.v32i0.18529
https://doaj.org/article/d20bfdbe626c4d5c81cc93fc186a60e5
Description
Summary:A previously uncultured cyanobacterium, strain KNUA009, was axenically isolated from a meltwater stream on Barton Peninsula, King George Island, South Shetland Islands, Antarctica. Molecular evidences showed that the isolate belongs to groups of globally distributed cryosphere cyanobacterial clones and this new isolate represents the first laboratory culture to be assigned to these groups. Strain KNUA009 was able to thrive at low temperatures ranging between 5°C and 20°C, but did not survive at temperatures of 25°C and above. As the isolate morphologically resembled Oscillatoria species, it is suggested that this cyanobacterium may represent a new species clade with cold resistance within the genus Oscillatoria.

Similar Items