First records of Amphidoma languida and Azadinium dexteroporum (Amphidomataceae, Dinophyceae) from the Irminger Sea off Iceland
Species of dinophycean Amphidomataceae are producers of phycotoxins classified as azaspiracids. We provide the first records of two of their constituent species, Amphidoma languida and Azadinium dexteroporum , for the Irminger Sea off Iceland. Morphological examination and molecular characterization...
Published in: | Marine Biodiversity Records |
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Language: | English |
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Cambridge University Press (CUP)
2015
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Online Access: | http://dx.doi.org/10.1017/s1755267215001128 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1755267215001128 |
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crcambridgeupr:10.1017/s1755267215001128 2024-09-30T14:29:51+00:00 First records of Amphidoma languida and Azadinium dexteroporum (Amphidomataceae, Dinophyceae) from the Irminger Sea off Iceland Tillmann, Urban Gottschling, Marc Nézan, Elisabeth Krock, Bernd 2015 http://dx.doi.org/10.1017/s1755267215001128 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1755267215001128 en eng Cambridge University Press (CUP) Marine Biodiversity Records volume 8 ISSN 1755-2672 journal-article 2015 crcambridgeupr https://doi.org/10.1017/s1755267215001128 2024-09-11T04:05:06Z Species of dinophycean Amphidomataceae are producers of phycotoxins classified as azaspiracids. We provide the first records of two of their constituent species, Amphidoma languida and Azadinium dexteroporum , for the Irminger Sea off Iceland. Morphological examination and molecular characterization, including uncorrected mean pairwise distances between sequences of the Internal Transcribed Spacer (ITS), doubtlessly assigned the sub-Arctic strain 2A11 to the reference of Amphidoma languida . Strain 2A11 produced AZA-38 and AZA-39, corresponding to the toxin profile described for the type material. The sub-Arctic isolate 1D12 differed significantly in terms of ITS genetic distance (p = 0.04) from a Mediterranean Azadinium dexteroporum strain, but our morphological analysis did not reveal any major or stable diagnostic traits between the reference strain of Azadinium dexteroporum and the new strain described here. In contrast to the Mediterranean strain of Azadinium dexteroporum , the sub-Arctic strain 1D12 did not produce any known azaspiracids. The new records of Amphidoma languida and Azadinium dexteroporum from the Irminger Sea imply an important range extension of the species, formerly known from the northern and eastern Atlantic ( Amphidoma languida ) and from the Mediterranean area ( Azadinium dexteroporum ) only. Together with three new species of Azadinium recently described from the same expedition, the results clearly show that the biodiversity of the Amphidomataceae in the sub-Arctic is remarkably large. Article in Journal/Newspaper Arctic Iceland Cambridge University Press Arctic Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Marine Biodiversity Records 8 |
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Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
description |
Species of dinophycean Amphidomataceae are producers of phycotoxins classified as azaspiracids. We provide the first records of two of their constituent species, Amphidoma languida and Azadinium dexteroporum , for the Irminger Sea off Iceland. Morphological examination and molecular characterization, including uncorrected mean pairwise distances between sequences of the Internal Transcribed Spacer (ITS), doubtlessly assigned the sub-Arctic strain 2A11 to the reference of Amphidoma languida . Strain 2A11 produced AZA-38 and AZA-39, corresponding to the toxin profile described for the type material. The sub-Arctic isolate 1D12 differed significantly in terms of ITS genetic distance (p = 0.04) from a Mediterranean Azadinium dexteroporum strain, but our morphological analysis did not reveal any major or stable diagnostic traits between the reference strain of Azadinium dexteroporum and the new strain described here. In contrast to the Mediterranean strain of Azadinium dexteroporum , the sub-Arctic strain 1D12 did not produce any known azaspiracids. The new records of Amphidoma languida and Azadinium dexteroporum from the Irminger Sea imply an important range extension of the species, formerly known from the northern and eastern Atlantic ( Amphidoma languida ) and from the Mediterranean area ( Azadinium dexteroporum ) only. Together with three new species of Azadinium recently described from the same expedition, the results clearly show that the biodiversity of the Amphidomataceae in the sub-Arctic is remarkably large. |
format |
Article in Journal/Newspaper |
author |
Tillmann, Urban Gottschling, Marc Nézan, Elisabeth Krock, Bernd |
spellingShingle |
Tillmann, Urban Gottschling, Marc Nézan, Elisabeth Krock, Bernd First records of Amphidoma languida and Azadinium dexteroporum (Amphidomataceae, Dinophyceae) from the Irminger Sea off Iceland |
author_facet |
Tillmann, Urban Gottschling, Marc Nézan, Elisabeth Krock, Bernd |
author_sort |
Tillmann, Urban |
title |
First records of Amphidoma languida and Azadinium dexteroporum (Amphidomataceae, Dinophyceae) from the Irminger Sea off Iceland |
title_short |
First records of Amphidoma languida and Azadinium dexteroporum (Amphidomataceae, Dinophyceae) from the Irminger Sea off Iceland |
title_full |
First records of Amphidoma languida and Azadinium dexteroporum (Amphidomataceae, Dinophyceae) from the Irminger Sea off Iceland |
title_fullStr |
First records of Amphidoma languida and Azadinium dexteroporum (Amphidomataceae, Dinophyceae) from the Irminger Sea off Iceland |
title_full_unstemmed |
First records of Amphidoma languida and Azadinium dexteroporum (Amphidomataceae, Dinophyceae) from the Irminger Sea off Iceland |
title_sort |
first records of amphidoma languida and azadinium dexteroporum (amphidomataceae, dinophyceae) from the irminger sea off iceland |
publisher |
Cambridge University Press (CUP) |
publishDate |
2015 |
url |
http://dx.doi.org/10.1017/s1755267215001128 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S1755267215001128 |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Arctic Irminger Sea |
geographic_facet |
Arctic Irminger Sea |
genre |
Arctic Iceland |
genre_facet |
Arctic Iceland |
op_source |
Marine Biodiversity Records volume 8 ISSN 1755-2672 |
op_doi |
https://doi.org/10.1017/s1755267215001128 |
container_title |
Marine Biodiversity Records |
container_volume |
8 |
_version_ |
1811635035066859520 |