Pseudo-nitzschia simulans sp. nov. (Bacillariophyceae), the first domoic acid producer from Chinese waters
The genus Pseudo-nitzschia has attracted attention because of production of the toxin, domoic acid (DA), causing Amnesic Shellfish Poisoning (ASP). Pseudo-nitzschia blooms occur frequently in Chinese coastal waters, and DA has been detected in several marine organisms, but so far no Pseudo-nitzsch...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier Ltd.
2017
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/17377/ http://ir.unimas.my/id/eprint/17377/1/Pseudo-nitzschia%20simulans%20sp.%20nov.%20%28Bacillariophyceae%29%20%28abstract%29.pdf |
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| author | Yang, Li Chun, Xiu Huang Guo, Shuang Xu Nina, Lundholm Sing, Tung Teng Haiyan, Wu Zhijun, Tan |
| author_facet | Yang, Li Chun, Xiu Huang Guo, Shuang Xu Nina, Lundholm Sing, Tung Teng Haiyan, Wu Zhijun, Tan |
| author_sort | Yang, Li |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | The genus Pseudo-nitzschia has attracted attention because of production of the toxin, domoic acid (DA),
causing Amnesic Shellfish Poisoning (ASP). Pseudo-nitzschia blooms occur frequently in Chinese coastal
waters, and DA has been detected in several marine organisms, but so far no Pseudo-nitzschia strains from
Chinese waters have been shown to produce DA. In this study, monoclonal Pseudo-nitzschia strains were
established from Chinese coastal waters and examined using light microscopy, electron microscopy and
molecular markers. Five strains, sharing distinct morphological and molecular features differentiating
them from other Pseudo-nitzschia species, represent a new species, Pseudo-nitzschia simulans sp. nov.
Morphologically, the taxon belongs to the P. pseudodelicatissima group, cells possessing a central nodule
and each stria comprising one row of poroids. The new species is characterized by the poroid structure,
which typically comprises two sectors, each sector located near opposite margins of the poroid. The
production of DA was examined by liquid chromatography tandem mass spectrometry (LC–MS/MS)
analyses of cells in stationary growth phase. Domoic acid was detected in one of the
five strains, with
concentrations around 1.05–1.54 fg cell�1. This is the
first toxigenic diatom species reported from Chinese
waters. |
| first_indexed | 2025-11-15T06:53:00Z |
| format | Article |
| id | unimas-17377 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:53:00Z |
| publishDate | 2017 |
| publisher | Elsevier Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-173772017-10-10T06:29:37Z http://ir.unimas.my/id/eprint/17377/ Pseudo-nitzschia simulans sp. nov. (Bacillariophyceae), the first domoic acid producer from Chinese waters Yang, Li Chun, Xiu Huang Guo, Shuang Xu Nina, Lundholm Sing, Tung Teng Haiyan, Wu Zhijun, Tan GE Environmental Sciences The genus Pseudo-nitzschia has attracted attention because of production of the toxin, domoic acid (DA), causing Amnesic Shellfish Poisoning (ASP). Pseudo-nitzschia blooms occur frequently in Chinese coastal waters, and DA has been detected in several marine organisms, but so far no Pseudo-nitzschia strains from Chinese waters have been shown to produce DA. In this study, monoclonal Pseudo-nitzschia strains were established from Chinese coastal waters and examined using light microscopy, electron microscopy and molecular markers. Five strains, sharing distinct morphological and molecular features differentiating them from other Pseudo-nitzschia species, represent a new species, Pseudo-nitzschia simulans sp. nov. Morphologically, the taxon belongs to the P. pseudodelicatissima group, cells possessing a central nodule and each stria comprising one row of poroids. The new species is characterized by the poroid structure, which typically comprises two sectors, each sector located near opposite margins of the poroid. The production of DA was examined by liquid chromatography tandem mass spectrometry (LC–MS/MS) analyses of cells in stationary growth phase. Domoic acid was detected in one of the five strains, with concentrations around 1.05–1.54 fg cell�1. This is the first toxigenic diatom species reported from Chinese waters. Elsevier Ltd. 2017 Article PeerReviewed text en http://ir.unimas.my/id/eprint/17377/1/Pseudo-nitzschia%20simulans%20sp.%20nov.%20%28Bacillariophyceae%29%20%28abstract%29.pdf Yang, Li and Chun, Xiu Huang and Guo, Shuang Xu and Nina, Lundholm and Sing, Tung Teng and Haiyan, Wu and Zhijun, Tan (2017) Pseudo-nitzschia simulans sp. nov. (Bacillariophyceae), the first domoic acid producer from Chinese waters. Harmful Algae, 67. pp. 119-130. ISSN 1568-9883 http://dx.doi.org/10.1016/j.hal.2017.06.008 http://dx.doi.org/10.1016/j.hal.2017.06.008 |
| spellingShingle | GE Environmental Sciences Yang, Li Chun, Xiu Huang Guo, Shuang Xu Nina, Lundholm Sing, Tung Teng Haiyan, Wu Zhijun, Tan Pseudo-nitzschia simulans sp. nov. (Bacillariophyceae), the first domoic acid producer from Chinese waters |
| title | Pseudo-nitzschia simulans sp. nov. (Bacillariophyceae), the
first domoic acid producer from Chinese waters |
| title_full | Pseudo-nitzschia simulans sp. nov. (Bacillariophyceae), the
first domoic acid producer from Chinese waters |
| title_fullStr | Pseudo-nitzschia simulans sp. nov. (Bacillariophyceae), the
first domoic acid producer from Chinese waters |
| title_full_unstemmed | Pseudo-nitzschia simulans sp. nov. (Bacillariophyceae), the
first domoic acid producer from Chinese waters |
| title_short | Pseudo-nitzschia simulans sp. nov. (Bacillariophyceae), the
first domoic acid producer from Chinese waters |
| title_sort | pseudo-nitzschia simulans sp. nov. (bacillariophyceae), the
first domoic acid producer from chinese waters |
| topic | GE Environmental Sciences |
| url | http://ir.unimas.my/id/eprint/17377/ http://ir.unimas.my/id/eprint/17377/ http://ir.unimas.my/id/eprint/17377/ http://ir.unimas.my/id/eprint/17377/1/Pseudo-nitzschia%20simulans%20sp.%20nov.%20%28Bacillariophyceae%29%20%28abstract%29.pdf |