Salvato in:
| Autori principali: | , , , , , , , , , , |
|---|---|
| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Harmful algae
2026
|
| Soggetti: | |
| Accesso online: | https://pubmed.ncbi.nlm.nih.gov/42025376/ |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1868266056191049728 |
|---|---|
| author | Nishimura, Tomohiro Murray, J Sam Smith, Kirsty F Thompson, Lucy Fitzgerald, Joshua Passfield, Emillie Balci, Muharrem Harwood, D Tim Challenger, Sarah Adachi, Masao Rhodes, Lesley L |
| author_facet | Nishimura, Tomohiro Murray, J Sam Smith, Kirsty F Thompson, Lucy Fitzgerald, Joshua Passfield, Emillie Balci, Muharrem Harwood, D Tim Challenger, Sarah Adachi, Masao Rhodes, Lesley L Nishimura, Tomohiro Murray, J Sam Smith, Kirsty F Thompson, Lucy Fitzgerald, Joshua Passfield, Emillie Balci, Muharrem Harwood, D Tim Challenger, Sarah Adachi, Masao Rhodes, Lesley L |
| collection | PubMed - marine biology |
| contents | The benthic genus Prorocentrum (Dinophyceae) in Aotearoa New Zealand and Rangitāhua Kermadec Islands: Genetic diversity, distribution, and diarrhetic shellfish toxin profile. Nishimura, Tomohiro Murray, J Sam Smith, Kirsty F Thompson, Lucy Fitzgerald, Joshua Passfield, Emillie Balci, Muharrem Harwood, D Tim Challenger, Sarah Adachi, Masao Rhodes, Lesley L Dinoflagellida New Zealand Marine Toxins Genetic Variation Phylogeny Shellfish Poisoning Islands In the coastal waters of Aotearoa New Zealand, including the territory of Rangitāhua Kermadec Islands, the diversity, distribution, and diarrhetic shellfish toxin (DST) profile of the benthic dinoflagellate Prorocentrum has not been well characterised. Between 2018 and 2021, samples of macroalgae were collected from various sites, in both subtropical and temperate coastal waters and 230 clonal isolates of benthic Prorocentrum were established, with additional nine strains obtained from the Cawthron Institute Culture Collection of Microalgae. Molecular phylogenetic analysis of partial large subunit ribosomal DNA (D1-D2 or D1-D3 regions) determined the presence of nine species consisting of multiple clades or subclades: P. lima complex subclades 1a, 1d, 1e, 4a, and 4b, P. hoffmannianum, P. aff. foraminosum clades 1 and 2, P. clipeus, P. cf. emarginatum, P. fukuyoi complex subclades F2c, F2g, F2h, and F2i, P. malayense, P. rhathymum, and P. tsawwassenense clade 1. P. lima complex subclade 4a was widespread from the subtropical to temperate zones. On the other hand, P. lima complex subclades 1a, 1d, and 1e, P. hoffmannianum, P. cf. emarginatum, P. fukuyoi complex subclades F2g and F2h, P. malayense, and P. rhathymum were restricted to the subtropical zone, and the other species/clades/subclades were restricted to the temperate zone. The profile of DSTs [okadaic acid (OA) and dinophysistoxins (DTXs)] by 169 strains of the nine species was assessed using liquid chromatography-tandem mass spectrometry. Analyses revealed that strains of all P. lima complex subclades, P. aff. foraminosum clade 1 produced OA and/or DTX1, whereas strains of P. hoffmannianum produced only OA and a strain of P. aff. foraminosum clade 2 produced only DTX1. Strains of the other species/subclades did not produce detectable quantities of OA and DTX1. Only P. lima complex subclades 1a, 1e, 4a, and 4b, P. hoffmannianum, and P. aff. foraminosum clades 1 and 2 produced an uncharacterised DTX1 isomer. There was no DTX2 detected in any of the strains. These results suggest that there are potential risks for DST accumulation in marine animals from three benthic Prorocentrum species in Aotearoa New Zealand and Rangitāhua Kermadec Islands. |
| format | Artículo científico |
| id | pubmed_42025376 |
| institution | PubMed |
| language | en |
| publishDate | 2026 |
| publisher | Harmful algae |
| record_format | pubmed |
| spellingShingle | The benthic genus Prorocentrum (Dinophyceae) in Aotearoa New Zealand and Rangitāhua Kermadec Islands: Genetic diversity, distribution, and diarrhetic shellfish toxin profile. Nishimura, Tomohiro Murray, J Sam Smith, Kirsty F Thompson, Lucy Fitzgerald, Joshua Passfield, Emillie Balci, Muharrem Harwood, D Tim Challenger, Sarah Adachi, Masao Rhodes, Lesley L Dinoflagellida New Zealand Marine Toxins Genetic Variation Phylogeny Shellfish Poisoning Islands The benthic genus Prorocentrum (Dinophyceae) in Aotearoa New Zealand and Rangitāhua Kermadec Islands: Genetic diversity, distribution, and diarrhetic shellfish toxin profile. Nishimura, Tomohiro Murray, J Sam Smith, Kirsty F Thompson, Lucy Fitzgerald, Joshua Passfield, Emillie Balci, Muharrem Harwood, D Tim Challenger, Sarah Adachi, Masao Rhodes, Lesley L Dinoflagellida New Zealand Marine Toxins Genetic Variation Phylogeny Shellfish Poisoning Islands In the coastal waters of Aotearoa New Zealand, including the territory of Rangitāhua Kermadec Islands, the diversity, distribution, and diarrhetic shellfish toxin (DST) profile of the benthic dinoflagellate Prorocentrum has not been well characterised. Between 2018 and 2021, samples of macroalgae were collected from various sites, in both subtropical and temperate coastal waters and 230 clonal isolates of benthic Prorocentrum were established, with additional nine strains obtained from the Cawthron Institute Culture Collection of Microalgae. Molecular phylogenetic analysis of partial large subunit ribosomal DNA (D1-D2 or D1-D3 regions) determined the presence of nine species consisting of multiple clades or subclades: P. lima complex subclades 1a, 1d, 1e, 4a, and 4b, P. hoffmannianum, P. aff. foraminosum clades 1 and 2, P. clipeus, P. cf. emarginatum, P. fukuyoi complex subclades F2c, F2g, F2h, and F2i, P. malayense, P. rhathymum, and P. tsawwassenense clade 1. P. lima complex subclade 4a was widespread from the subtropical to temperate zones. On the other hand, P. lima complex subclades 1a, 1d, and 1e, P. hoffmannianum, P. cf. emarginatum, P. fukuyoi complex subclades F2g and F2h, P. malayense, and P. rhathymum were restricted to the subtropical zone, and the other species/clades/subclades were restricted to the temperate zone. The profile of DSTs [okadaic acid (OA) and dinophysistoxins (DTXs)] by 169 strains of the nine species was assessed using liquid chromatography-tandem mass spectrometry. Analyses revealed that strains of all P. lima complex subclades, P. aff. foraminosum clade 1 produced OA and/or DTX1, whereas strains of P. hoffmannianum produced only OA and a strain of P. aff. foraminosum clade 2 produced only DTX1. Strains of the other species/subclades did not produce detectable quantities of OA and DTX1. Only P. lima complex subclades 1a, 1e, 4a, and 4b, P. hoffmannianum, and P. aff. foraminosum clades 1 and 2 produced an uncharacterised DTX1 isomer. There was no DTX2 detected in any of the strains. These results suggest that there are potential risks for DST accumulation in marine animals from three benthic Prorocentrum species in Aotearoa New Zealand and Rangitāhua Kermadec Islands. |
| title | The benthic genus Prorocentrum (Dinophyceae) in Aotearoa New Zealand and Rangitāhua Kermadec Islands: Genetic diversity, distribution, and diarrhetic shellfish toxin profile. |
| topic | Dinoflagellida New Zealand Marine Toxins Genetic Variation Phylogeny Shellfish Poisoning Islands |
| url | https://pubmed.ncbi.nlm.nih.gov/42025376/ |