Inter- and intra-specific variability in morphogenetics and toxin composition of Alexandrium spp. in Irish coastal waters
Alexandrium spp. usually occur in low densities during summer along the south and west coasts of Ireland. Field investigations revealed the presence of morphologically similar strains of A. tamarense, A. tamutum and A. minutum. Several strains were cultured, derived through isolation of resting cyst...
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Online Access: | http://hdl.handle.net/10508/9922 https://doi.org/10.2989/18142320609504144 |
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ftieo:oai:repositorio.ieo.es:10508/9922 2023-05-15T17:41:27+02:00 Inter- and intra-specific variability in morphogenetics and toxin composition of Alexandrium spp. in Irish coastal waters Touzet, N. (Nicolás) Franco, J.M. (José Mariano) Raine, R. (Robin) Atlantic Ocean Eastern Atlantic Northeast Atlantic Irish Sea http://hdl.handle.net/10508/9922 https://doi.org/10.2989/18142320609504144 eng eng Centro Oceanográfico de Vigo http://www.tandfonline.com/doi/abs/10.2989/18142320609504144?journalCode=tams20 1814-232X http://hdl.handle.net/10508/9922 African Journal of Marine Science, 28(2). 2006: 181-184 doi:10.2989/18142320609504144 Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess CC-BY-NC-ND Alexandrium Ireland PSP toxins RDNA sequencing Taxonomy article ftieo https://doi.org/10.2989/18142320609504144 2022-07-26T23:48:51Z Alexandrium spp. usually occur in low densities during summer along the south and west coasts of Ireland. Field investigations revealed the presence of morphologically similar strains of A. tamarense, A. tamutum and A. minutum. Several strains were cultured, derived through isolation of resting cysts or vegetative cells. Their identification was confirmed using partial sequencing of the LSU rDNA and their phylogeny was established with this marker. HPLC-FLD analysis showed that no strains of A. tamarense or A. tamutum produced paralytic shellfish poisoning (PSP) toxins. PSP toxins (GTX2 and GTX3) were only detected in strains of A. minutum derived from retentive inlets along the South Coast, the only region where shellfish regularly become contaminated with PSP toxins. All strains of A. minutum isolated from the West Coast were non-toxic. Results indicated that biogeographical studies of the various forms of A. minutum using molecular probes based on LSU rDNA sequences are of limited use. These are thought to be the first records of A. tamutum and of a non-toxic form of A. minutum outside of the Mediterranean Sea. Versión del editor 0,9320 Article in Journal/Newspaper Northeast Atlantic Instituto Español de Oceanografía: e-IEO African Journal of Marine Science 28 2 181 184 |
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Open Polar |
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Instituto Español de Oceanografía: e-IEO |
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ftieo |
language |
English |
topic |
Alexandrium Ireland PSP toxins RDNA sequencing Taxonomy |
spellingShingle |
Alexandrium Ireland PSP toxins RDNA sequencing Taxonomy Touzet, N. (Nicolás) Franco, J.M. (José Mariano) Raine, R. (Robin) Inter- and intra-specific variability in morphogenetics and toxin composition of Alexandrium spp. in Irish coastal waters |
topic_facet |
Alexandrium Ireland PSP toxins RDNA sequencing Taxonomy |
description |
Alexandrium spp. usually occur in low densities during summer along the south and west coasts of Ireland. Field investigations revealed the presence of morphologically similar strains of A. tamarense, A. tamutum and A. minutum. Several strains were cultured, derived through isolation of resting cysts or vegetative cells. Their identification was confirmed using partial sequencing of the LSU rDNA and their phylogeny was established with this marker. HPLC-FLD analysis showed that no strains of A. tamarense or A. tamutum produced paralytic shellfish poisoning (PSP) toxins. PSP toxins (GTX2 and GTX3) were only detected in strains of A. minutum derived from retentive inlets along the South Coast, the only region where shellfish regularly become contaminated with PSP toxins. All strains of A. minutum isolated from the West Coast were non-toxic. Results indicated that biogeographical studies of the various forms of A. minutum using molecular probes based on LSU rDNA sequences are of limited use. These are thought to be the first records of A. tamutum and of a non-toxic form of A. minutum outside of the Mediterranean Sea. Versión del editor 0,9320 |
format |
Article in Journal/Newspaper |
author |
Touzet, N. (Nicolás) Franco, J.M. (José Mariano) Raine, R. (Robin) |
author_facet |
Touzet, N. (Nicolás) Franco, J.M. (José Mariano) Raine, R. (Robin) |
author_sort |
Touzet, N. (Nicolás) |
title |
Inter- and intra-specific variability in morphogenetics and toxin composition of Alexandrium spp. in Irish coastal waters |
title_short |
Inter- and intra-specific variability in morphogenetics and toxin composition of Alexandrium spp. in Irish coastal waters |
title_full |
Inter- and intra-specific variability in morphogenetics and toxin composition of Alexandrium spp. in Irish coastal waters |
title_fullStr |
Inter- and intra-specific variability in morphogenetics and toxin composition of Alexandrium spp. in Irish coastal waters |
title_full_unstemmed |
Inter- and intra-specific variability in morphogenetics and toxin composition of Alexandrium spp. in Irish coastal waters |
title_sort |
inter- and intra-specific variability in morphogenetics and toxin composition of alexandrium spp. in irish coastal waters |
publisher |
Centro Oceanográfico de Vigo |
url |
http://hdl.handle.net/10508/9922 https://doi.org/10.2989/18142320609504144 |
op_coverage |
Atlantic Ocean Eastern Atlantic Northeast Atlantic Irish Sea |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_relation |
http://www.tandfonline.com/doi/abs/10.2989/18142320609504144?journalCode=tams20 1814-232X http://hdl.handle.net/10508/9922 African Journal of Marine Science, 28(2). 2006: 181-184 doi:10.2989/18142320609504144 |
op_rights |
Attribution-NonCommercial-NoDerivs 3.0 Spain http://creativecommons.org/licenses/by-nc-nd/3.0/es/ openAccess |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.2989/18142320609504144 |
container_title |
African Journal of Marine Science |
container_volume |
28 |
container_issue |
2 |
container_start_page |
181 |
op_container_end_page |
184 |
_version_ |
1766143008632209408 |