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Nodosilinea signiensis sp. nov. (Leptolyngbyaceae, Synechococcales), a new terrestrial cyanobacterium isolated from mats collected on Signy Island, South Orkney Islands, Antarctica

Terrestrial cyanobacteria are very diverse and widely distributed in Antarctica, where they can form macroscopically visible biofilms on the surfaces of soils and rocks, and on benthic surfaces in fresh waters. We recently isolated several terrestrial cyanobacteria from soils collected on Signy Isla...

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Autores principales: Radzi, Ranina, Muangmai, Narongrit, Broady, Paul, Wan Omar, Wan Maznah, Lavoue, Sebastien, Convey, Peter, Merican, Faradina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6827893/
https://www.ncbi.nlm.nih.gov/pubmed/31682631
http://dx.doi.org/10.1371/journal.pone.0224395
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author Radzi, Ranina
Muangmai, Narongrit
Broady, Paul
Wan Omar, Wan Maznah
Lavoue, Sebastien
Convey, Peter
Merican, Faradina
author_facet Radzi, Ranina
Muangmai, Narongrit
Broady, Paul
Wan Omar, Wan Maznah
Lavoue, Sebastien
Convey, Peter
Merican, Faradina
author_sort Radzi, Ranina
collection PubMed
description Terrestrial cyanobacteria are very diverse and widely distributed in Antarctica, where they can form macroscopically visible biofilms on the surfaces of soils and rocks, and on benthic surfaces in fresh waters. We recently isolated several terrestrial cyanobacteria from soils collected on Signy Island, South Orkney Islands, Antarctica. Among them, we found a novel species of Nodosilinea, named here as Nodosilinea signiensis sp. nov. This new species is morphologically and genetically distinct from other described species. Morphological examination indicated that the new species is differentiated from others in the genus by cell size, cell shape, filament attenuation, sheath morphology and granulation. 16S rDNA phylogenetic analyses clearly confirmed that N. signiensis belongs to the genus Nodosilinea, but that it is genetically distinct from other known species of Nodosilinea. The D1–D1´ helix of the 16S–23S ITS region of the new species was also different from previously described Nodosilinea species. This is the first detailed characterization of a member of the genus Nodosilinea from Antarctica as well as being a newly described species.
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spelling pubmed-68278932019-11-12 Nodosilinea signiensis sp. nov. (Leptolyngbyaceae, Synechococcales), a new terrestrial cyanobacterium isolated from mats collected on Signy Island, South Orkney Islands, Antarctica Radzi, Ranina Muangmai, Narongrit Broady, Paul Wan Omar, Wan Maznah Lavoue, Sebastien Convey, Peter Merican, Faradina PLoS One Research Article Terrestrial cyanobacteria are very diverse and widely distributed in Antarctica, where they can form macroscopically visible biofilms on the surfaces of soils and rocks, and on benthic surfaces in fresh waters. We recently isolated several terrestrial cyanobacteria from soils collected on Signy Island, South Orkney Islands, Antarctica. Among them, we found a novel species of Nodosilinea, named here as Nodosilinea signiensis sp. nov. This new species is morphologically and genetically distinct from other described species. Morphological examination indicated that the new species is differentiated from others in the genus by cell size, cell shape, filament attenuation, sheath morphology and granulation. 16S rDNA phylogenetic analyses clearly confirmed that N. signiensis belongs to the genus Nodosilinea, but that it is genetically distinct from other known species of Nodosilinea. The D1–D1´ helix of the 16S–23S ITS region of the new species was also different from previously described Nodosilinea species. This is the first detailed characterization of a member of the genus Nodosilinea from Antarctica as well as being a newly described species. Public Library of Science 2019-11-04 /pmc/articles/PMC6827893/ /pubmed/31682631 http://dx.doi.org/10.1371/journal.pone.0224395 Text en © 2019 Radzi et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Radzi, Ranina
Muangmai, Narongrit
Broady, Paul
Wan Omar, Wan Maznah
Lavoue, Sebastien
Convey, Peter
Merican, Faradina
Nodosilinea signiensis sp. nov. (Leptolyngbyaceae, Synechococcales), a new terrestrial cyanobacterium isolated from mats collected on Signy Island, South Orkney Islands, Antarctica
title Nodosilinea signiensis sp. nov. (Leptolyngbyaceae, Synechococcales), a new terrestrial cyanobacterium isolated from mats collected on Signy Island, South Orkney Islands, Antarctica
title_full Nodosilinea signiensis sp. nov. (Leptolyngbyaceae, Synechococcales), a new terrestrial cyanobacterium isolated from mats collected on Signy Island, South Orkney Islands, Antarctica
title_fullStr Nodosilinea signiensis sp. nov. (Leptolyngbyaceae, Synechococcales), a new terrestrial cyanobacterium isolated from mats collected on Signy Island, South Orkney Islands, Antarctica
title_full_unstemmed Nodosilinea signiensis sp. nov. (Leptolyngbyaceae, Synechococcales), a new terrestrial cyanobacterium isolated from mats collected on Signy Island, South Orkney Islands, Antarctica
title_short Nodosilinea signiensis sp. nov. (Leptolyngbyaceae, Synechococcales), a new terrestrial cyanobacterium isolated from mats collected on Signy Island, South Orkney Islands, Antarctica
title_sort nodosilinea signiensis sp. nov. (leptolyngbyaceae, synechococcales), a new terrestrial cyanobacterium isolated from mats collected on signy island, south orkney islands, antarctica
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6827893/
https://www.ncbi.nlm.nih.gov/pubmed/31682631
http://dx.doi.org/10.1371/journal.pone.0224395
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