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Pseudo-nitzschia is a marine planktonic diatom genus that accounts for 4.4% of pennate diatoms found worldwide. Some species are capable of producing the neurotoxin domoic acid (DA), which is responsible for the neurological disorder in humans known as amnesic shellfish poisoning (ASP). Currently, 58 species are known, 28 of which have been shown to produced DA. It was originally hypothesized that only dinoflagellates could produce harmful algal toxins, but a deadly bloom of Pseudo-nitzschia occurred in 1987 in the bays of Prince Edward Island, Canada, and led to an outbreak of ASP. Over 100 people were affected by this outbreak after consuming contaminated mussels; three people died. Since this event, no additional deaths have been attributed to ASP, though the prevalence of toxic diatoms

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  • Pseudo-nitzschia (es)
  • Pseudo-nitzschia (in)
  • Pseudo-nitzschia (fr)
  • プセウドニッチア属 (ja)
  • Pseudo-nitzschia (en)
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  • Pseudo-nitzschia es un género de algas unicelulares de la clase diatomeas, familia . Incluye varias especies de algas que producen una neurotoxina llamada ácido domoico, que es responsable de intoxicación en humanos por consumo de moluscos. Este tipo de intoxicación recibe el nombre de envenenamiento por la toxina amnésica de los moluscos (ASP) y se han producido casos en varios países, entre ellos Canadá, Argentina y Estados Unidos. La toxina es producida por las algas Pseudo-nitzschiase, pero se acumula en diferentes especies de cangrejos, navajas, vieiras, mejillones y anchoas, pudiendo afectar además de al hombre, a leones marinos y pelícanos.​​​​Entre las especies que pueden producir el ácido domoico se encuentran las siguientes: (es)
  • Pseudo-nitzschia is a marine planktonic diatom genus that accounts for 4.4% of pennate diatoms found worldwide. Some species are capable of producing the neurotoxin domoic acid (DA), which is responsible for the neurological disorder in humans known as amnesic shellfish poisoning (ASP). Currently, 58 species are known, 28 of which have been shown to produced DA. It was originally hypothesized that only dinoflagellates could produce harmful algal toxins, but a deadly bloom of Pseudo-nitzschia occurred in 1987 in the bays of Prince Edward Island, Canada, and led to an outbreak of ASP. Over 100 people were affected by this outbreak after consuming contaminated mussels; three people died. Since this event, no additional deaths have been attributed to ASP, though the prevalence of toxic diatoms (en)
  • Pseudo-nitzschia adalah genus diatom planktonik di laut. Di dalam genus ini terdapat sejumlah spesies yang dapat menghasilkan neurotoksin asam domoat, yang merupakan biang keladi penyakit neurologis yang disebut keracunan kerang amnesik. Saat ini, terdapat 52 spesies di dalam genus ini, dan 26 dari antaranya diketahui dapat menghasilkan asam domoat. Ledakan populasi Pseudo-nitzschia di Prince Edward Island di Kanada pada taun 1987 pernah menyebabkan perebakan penyakit ini. Lebih dari 100 orang terkena dampaknya setelah memakan kerang yang terkontaminasi, dan tiga orang bahkan meninggal dunia. Semenjak itu, ledakan populasi Pseudo-nitzschia telah ditemui di perairan-perairan lainnya, dan penyebabnya adalah meningkatnya konsentrasi nutrien yang berasal dari daerah pertanian. Ledakan populasi (in)
  • Les micro-algues du genre Pseudo-nitzschia sont des Diatomées de la famille des Bacillariaceae. Certaines espèces de ce genre produisent de l'acide domoïque, une neurotoxine responsable d'intoxications alimentaires (ASP pour Amnesic Shellfish Poisoning). Le premier cas connu d'intoxication à la suite de la consommation de coquillages contaminés remonte à 1987, à l'Île-du-Prince-Édouard. (fr)
  • プセウドニッチア属(プセウドニッチアぞく、Pseudo-nitzschia)は、ドウモイ酸として知られる神経毒を生産することが知られる数種の珪藻を含む。ドウモイ酸はと呼ばれるヒトの疾患の原因である。植物プランクトンのこの属はカナダ、カリフォルニア州、オレゴン州、ワシントン州、ヨーロッパ、アジア、オーストラリア、ニュージーランド、中央アメリカ、南アメリカの沿岸水域において有害藻類ブルーム(HAB)を形成することが知られている。 プセウドニッチア属の珪藻種の一般的な生物学、生理学、毒性、分布はBatesおよびTrainer(2006年)Trainerら(2008年)、Lelongら(2012年)、Trainerら(2012年)で概説されている。 ドウモイ酸を生産することが示されている種(全ての株が毒素産生株ではない)。 (ja)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Pseudo-nitzschia.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Pseudo-nitzschia_granii.png
  • http://commons.wikimedia.org/wiki/Special:FilePath/Pseudonitzschia2.jpg
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