Phenotypic and phylogenetic studies of benthic mat-forming cyanobacteria on the NW Svalbard

Phenotypic and phylogenetic studies of benthic mat-forming cyanobacteria on the NW Svalbard Cold habitats are diminishing as a result of climate change, while at the same time little is known of the diversity or biogeography of microbes that thrive in such environments. Furthermore, despite the evident importance of cyanobacteria in polar areas, there are hardly any studies focusing on the phylogenetic relationship between the Arctic and Antarctic cyanobacteria. Here, we described cyanobacterial mats as well as epi- and endoliths collected from shallow streams and rocks, respectively, in the northwestern part of Svalbard. Thirteen populations were identified and characterized by employing morphological and molecular (16S rRNA gene sequences) techniques. Our results were compared to analogous information (available from the GenBank) and related to organisms from similar environments located in the Northern and Southern Hemispheres. In general, the morphological and molecular characterizations complemented each other, and the identified Arctic populations belonged to the following orders: Oscillatoriales (6), Nostocales (6), and Chroococcales (1). Twelve of the identified polar populations showed high similarity (94–99% 16S rRNA gene sequence) when compared to other Arctic and Antarctic cyanobacteria. Mat builder Phormidium autumnale shared only 88% similarity with sequences deposited in the GenBank. Our results demonstrate remarkable similarities of microbial life of Svalbard to that in Antarctica and the High Himalayas. Our findings are a starting point for future comparative research of the benthic as well as endolithic populations of cyanobacteria from the Arctic and Antarctica that will yield new insights into the cold and dry limits of life on Earth. They imply global distributions of the low-temperature cyanobacterial populations throughout the cold terrestrial biosphere. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Polar Biology Springer Journals

Phenotypic and phylogenetic studies of benthic mat-forming cyanobacteria on the NW Svalbard

Loading next page...
 
/lp/springer_journal/phenotypic-and-phylogenetic-studies-of-benthic-mat-forming-MyCshkKp0X
Publisher
Springer Journals
Copyright
Copyright © 2017 by Springer-Verlag Berlin Heidelberg
Subject
Life Sciences; Ecology; Oceanography; Microbiology; Plant Sciences; Zoology
ISSN
0722-4060
eISSN
1432-2056
D.O.I.
10.1007/s00300-017-2083-6
Publisher site
See Article on Publisher Site

Abstract

Cold habitats are diminishing as a result of climate change, while at the same time little is known of the diversity or biogeography of microbes that thrive in such environments. Furthermore, despite the evident importance of cyanobacteria in polar areas, there are hardly any studies focusing on the phylogenetic relationship between the Arctic and Antarctic cyanobacteria. Here, we described cyanobacterial mats as well as epi- and endoliths collected from shallow streams and rocks, respectively, in the northwestern part of Svalbard. Thirteen populations were identified and characterized by employing morphological and molecular (16S rRNA gene sequences) techniques. Our results were compared to analogous information (available from the GenBank) and related to organisms from similar environments located in the Northern and Southern Hemispheres. In general, the morphological and molecular characterizations complemented each other, and the identified Arctic populations belonged to the following orders: Oscillatoriales (6), Nostocales (6), and Chroococcales (1). Twelve of the identified polar populations showed high similarity (94–99% 16S rRNA gene sequence) when compared to other Arctic and Antarctic cyanobacteria. Mat builder Phormidium autumnale shared only 88% similarity with sequences deposited in the GenBank. Our results demonstrate remarkable similarities of microbial life of Svalbard to that in Antarctica and the High Himalayas. Our findings are a starting point for future comparative research of the benthic as well as endolithic populations of cyanobacteria from the Arctic and Antarctica that will yield new insights into the cold and dry limits of life on Earth. They imply global distributions of the low-temperature cyanobacterial populations throughout the cold terrestrial biosphere.

Journal

Polar BiologySpringer Journals

Published: Feb 17, 2017

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off