Diversity and bioactivity of actinomycetes from Signy Island terrestrial soils, maritime Antarctic
The Antarctic represents a largely untapped source for isolation of new microorganisms with potential to produce bioactive natural products. Actinomycetes are of special interest among such microorganisms as they are known to produce a large number of natural products, many of which have clinical, p...
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ftarcticportal:oai:generic.eprints.org:2500 2023-10-29T02:29:43+01:00 Diversity and bioactivity of actinomycetes from Signy Island terrestrial soils, maritime Antarctic Pan, Shing Yi Tan, Geok Yuan Annie Convey, Peter Pearce, David A. Tan, Irene K. P. 2013-12 application/pdf http://library.arcticportal.org/2500/ http://library.arcticportal.org/2500/1/A20130403.pdf en eng Polar Research Institute of China - PRIC http://library.arcticportal.org/2500/1/A20130403.pdf Pan, Shing Yi and Tan, Geok Yuan Annie and Convey, Peter and Pearce, David A. and Tan, Irene K. P. (2013) Diversity and bioactivity of actinomycetes from Signy Island terrestrial soils, maritime Antarctic. Advances in Polar Science, 24 (4). pp. 208-212. Fauna Terrestrial Article PeerReviewed 2013 ftarcticportal 2023-10-04T22:54:12Z The Antarctic represents a largely untapped source for isolation of new microorganisms with potential to produce bioactive natural products. Actinomycetes are of special interest among such microorganisms as they are known to produce a large number of natural products, many of which have clinical, pharmaceutical or agricultural applications. We isolated, characterized and classified actinomycetes from soil samples collected from different locations on Signy Island, South Orkney Islands, in the maritime Antarctic. A total of 95 putative actinomycete strains were isolated from eight soil samples using eight types of selective isolation media. The strains were dereplicated into 16 groups based on morphology and Amplified Ribosomal DNA Restriction Analysis (ARDRA) patterns. Analysis of 16S rRNA gene sequences of representatives from each group showed that streptomycetes were the dominant actinomycetes isolated from these soils; however, there were also several strains belonging to diverse and rare genera in the class Actinobacteria, including Demetria, Glaciibacter, Kocuria, Marmoricola, Nakamurella and Tsukamurella. In addition, screening for antibacterial activity and non-ribosomal peptide synthetase genes showed that many of the actinomycete strains have the potential to produce antibacterial compounds. Article in Journal/Newspaper Advances in Polar Science Antarc* Antarctic Polar Science Polar Science Signy Island South Orkney Islands Arctic Portal Library |
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Fauna Terrestrial Pan, Shing Yi Tan, Geok Yuan Annie Convey, Peter Pearce, David A. Tan, Irene K. P. Diversity and bioactivity of actinomycetes from Signy Island terrestrial soils, maritime Antarctic |
topic_facet |
Fauna Terrestrial |
description |
The Antarctic represents a largely untapped source for isolation of new microorganisms with potential to produce bioactive natural products. Actinomycetes are of special interest among such microorganisms as they are known to produce a large number of natural products, many of which have clinical, pharmaceutical or agricultural applications. We isolated, characterized and classified actinomycetes from soil samples collected from different locations on Signy Island, South Orkney Islands, in the maritime Antarctic. A total of 95 putative actinomycete strains were isolated from eight soil samples using eight types of selective isolation media. The strains were dereplicated into 16 groups based on morphology and Amplified Ribosomal DNA Restriction Analysis (ARDRA) patterns. Analysis of 16S rRNA gene sequences of representatives from each group showed that streptomycetes were the dominant actinomycetes isolated from these soils; however, there were also several strains belonging to diverse and rare genera in the class Actinobacteria, including Demetria, Glaciibacter, Kocuria, Marmoricola, Nakamurella and Tsukamurella. In addition, screening for antibacterial activity and non-ribosomal peptide synthetase genes showed that many of the actinomycete strains have the potential to produce antibacterial compounds. |
format |
Article in Journal/Newspaper |
author |
Pan, Shing Yi Tan, Geok Yuan Annie Convey, Peter Pearce, David A. Tan, Irene K. P. |
author_facet |
Pan, Shing Yi Tan, Geok Yuan Annie Convey, Peter Pearce, David A. Tan, Irene K. P. |
author_sort |
Pan, Shing Yi |
title |
Diversity and bioactivity of actinomycetes from Signy Island terrestrial soils, maritime Antarctic |
title_short |
Diversity and bioactivity of actinomycetes from Signy Island terrestrial soils, maritime Antarctic |
title_full |
Diversity and bioactivity of actinomycetes from Signy Island terrestrial soils, maritime Antarctic |
title_fullStr |
Diversity and bioactivity of actinomycetes from Signy Island terrestrial soils, maritime Antarctic |
title_full_unstemmed |
Diversity and bioactivity of actinomycetes from Signy Island terrestrial soils, maritime Antarctic |
title_sort |
diversity and bioactivity of actinomycetes from signy island terrestrial soils, maritime antarctic |
publisher |
Polar Research Institute of China - PRIC |
publishDate |
2013 |
url |
http://library.arcticportal.org/2500/ http://library.arcticportal.org/2500/1/A20130403.pdf |
genre |
Advances in Polar Science Antarc* Antarctic Polar Science Polar Science Signy Island South Orkney Islands |
genre_facet |
Advances in Polar Science Antarc* Antarctic Polar Science Polar Science Signy Island South Orkney Islands |
op_relation |
http://library.arcticportal.org/2500/1/A20130403.pdf Pan, Shing Yi and Tan, Geok Yuan Annie and Convey, Peter and Pearce, David A. and Tan, Irene K. P. (2013) Diversity and bioactivity of actinomycetes from Signy Island terrestrial soils, maritime Antarctic. Advances in Polar Science, 24 (4). pp. 208-212. |
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1781059433252519936 |